repair systems: better than their reputation! - ikt · repair systems: better than their...

7
IKT product test Repair systems: Better than their reputation! Surprisingly good results in the IKT „Repair Systems“ test Partial repair or rehabilitation of drains and sewers enjoys an at best dubious reputation. The corresponding systems are considered unreliable in operation, and not particularly durable. IKT‘s most recent product test, on „Repair systems for main drains“, on the other hand, arrives at a more encouraging conclusion: five of the twelve systems ana- lyzed received a „Good“ grade, four „Satis- factory“, and only three a „Sufficient“. Repair techniques are used extremely frequently in Germany when there is a need to eliminate isolated conduit damage. They are then pre- ferred, frequently for cost reasons, over the alternative rehabilitation options, those of com- plete renewal and section-by-section renovation. Throughout Germany, around 25% of drain and sewer damage are tackled by means of repair methods (renovation: 26%, renewal: 49%; source: DWA survey, 2004). Repair systems under test Twelve repair systems in current use, subdivided into three groups, were submitted to compara- tive testing: 1. Injection and grouting/pressure filling Janßen Riss- und Scherbensanierung (Janßen crack and fragmentation repair system), Umwelttechnik Franz Janßen GmbH KASRO 2 Komponenten-Verpresssystem (KASRO two-component pressure-filling system), ProKASRO Mechatronik GmbH KA-TE PMO-Verfahren (KA-TE PMO system), KA-TE PMO AG 2. Short liners 3P-Plus-Kurzliner (3P-Plus short liner), sikotec GmbH / JT-elektronik GmbH ALOCIT Kurzliner (ALOCIT short liner), ALOCIT Chemie GmbH K-LINER, Kuchem GmbH KM-Kurzliner (KM short liner), KMG Pipe Technologies GmbH Konudur Sewer Repair Kit (VP), MC-Bauchemie Müller GmbH & Co. KG Point-Liner ® , Bodenbender GmbH 3. Internal sleeves Quick-Lock, UHRIG Kanaltechnik GmbH Quick-Lock mit einseitiger Aufbördelung (Quick-Lock flared at one end), UHRIG Kan- altechnik GmbH Stuttgarter Hülse (Stuttgart Sleeve), Haas GmbH & Co. KG Clients and steering committee This product test was financed by the environ- ment ministries of the German states of Baden- Württemberg and North Rhine-Westphalia, and twenty-six municipal drain/sewer-system opera- tors. The latter, in particular, are in need of neu- tral and independent evaluation of the available procedures, in order to provide a better basis for their investment decisions in future. The participating municipalities formed a steer- ing committee which met a total of eleven times and took all the central decisions. It decided, for example, which systems were to be tested, how the test program should be compiled, and which test criteria were to be taken as the basis. Finally, it also decided on the concluding award of grades. Test program The central elements of the test program are provided by the system suppliers‘ Quality Assur- ance and the system tests. Manuals, training provisions, third-party super- vision, environmental impact certificates and technical approval by the Deutsches Institut für Bautechnik (German Institute for Building Tech- nology, a government body, German abbrevia- tion: DIBt) were registered and evaluated, inter alia, for the Quality Assurance item. Four test lines consisting of concrete and vitri- fied clay, with nominal diameters ranging from ND 200 to ND 600, and also an additional ND 400/600 oval-section concrete line where the corresponding system could be used, were set up in the IKT test facility for each system for the purpose of the system tests. Typical forms of damage, such as transverse and longitudinal cracking, spalling, fragmentation and leaking joints were artificially incorporated into these conduits. Precisely the same amounts and types System operators examine the repair results Example of „branching crack“ damage type in vitrified clay pipes Test conduits in the IKT test facility 49 IKT

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Page 1: Repair systems: Better than their reputation! - IKT · Repair systems: Better than their reputation! ... KA-TE PMO AG 2. Short liners ... Konudur Sewer Repair Kit (VP),

IKT product test

Repair systems: Better than their reputation!Surprisingly good results in the IKT „Repair Systems“ test

Partial repair or rehabilitation of drains and sewers enjoys an at best dubious reputation. The corresponding systems are considered unreliable in operation, and not particularly durable. IKT‘s most recent product test, on

„Repair systems for main drains“, on the other hand, arrives at a more encouraging conclusion: five of the twelve systems ana-lyzed received a „Good“ grade, four „Satis-factory“, and only three a „Sufficient“.

Repair techniques are used extremely frequently in Germany when there is a need to eliminate isolated conduit damage. They are then pre-ferred, frequently for cost reasons, over the alternative rehabilitation options, those of com-plete renewal and section-by-section renovation. Throughout Germany, around 25% of drain and sewer damage are tackled by means of repair methods (renovation: 26%, renewal: 49%; source: DWA survey, 2004).

Repair systems under testTwelve repair systems in current use, subdivided into three groups, were submitted to compara-tive testing:

1. Injection and grouting/pressure filling Janßen Riss- und Scherbensanierung (Janßen crack and fragmentation repair system), Umwelttechnik Franz Janßen GmbH

KASRO 2 Komponenten-Verpresssystem (KASRO two-component pressure-filling system), ProKASRO Mechatronik GmbH

KA-TE PMO-Verfahren (KA-TE PMO system), KA-TE PMO AG

2. Short liners 3P-Plus-Kurzliner (3P-Plus short liner), sikotec GmbH / JT-elektronik GmbH

ALOCIT Kurzliner (ALOCIT short liner), ALOCIT Chemie GmbH

K-LINER, Kuchem GmbH KM-Kurzliner (KM short liner), KMG Pipe Technologies GmbH

Konudur Sewer Repair Kit (VP), MC-Bauchemie Müller GmbH & Co. KG

Point-Liner®, Bodenbender GmbH

3. Internal sleeves Quick-Lock, UHRIG Kanaltechnik GmbH Quick-Lock mit einseitiger Aufbördelung (Quick-Lock flared at one end), UHRIG Kan-altechnik GmbH

Stuttgarter Hülse (Stuttgart Sleeve), Haas GmbH & Co. KG

Clients and steering committeeThis product test was financed by the environ-ment ministries of the German states of Baden-Württemberg and North Rhine-Westphalia, and twenty-six municipal drain/sewer-system opera-tors. The latter, in particular, are in need of neu-tral and independent evaluation of the available procedures, in order to provide a better basis for their investment decisions in future.

The participating municipalities formed a steer-ing committee which met a total of eleven times and took all the central decisions. It decided, for example, which systems were to be tested, how the test program should be compiled, and which test criteria were to be taken as the basis.

Finally, it also decided on the concluding award of grades.

Test programThe central elements of the test program are provided by the system suppliers‘ Quality Assur-ance and the system tests.

Manuals, training provisions, third-party super-vision, environmental impact certificates and technical approval by the Deutsches Institut für Bautechnik (German Institute for Building Tech-nology, a government body, German abbrevia-tion: DIBt) were registered and evaluated, inter alia, for the Quality Assurance item.

Four test lines consisting of concrete and vitri-fied clay, with nominal diameters ranging from ND 200 to ND 600, and also an additional ND 400/600 oval-section concrete line where the corresponding system could be used, were set up in the IKT test facility for each system for the purpose of the system tests. Typical forms of damage, such as transverse and longitudinal cracking, spalling, fragmentation and leaking joints were artificially incorporated into these conduits. Precisely the same amounts and types

System operators examine the repair results

Example of „branching crack“ damage type in vitrified clay pipes

Test conduits in the IKT test facility

49 IKT

Page 2: Repair systems: Better than their reputation! - IKT · Repair systems: Better than their reputation! ... KA-TE PMO AG 2. Short liners ... Konudur Sewer Repair Kit (VP),

IKT product test

Example of short liners without (top) and with (down) visible traces of high-pressure flushing

of damage were assigned to all test participants, who were then instructed to repair it.

The rehabilitation target was that of restoring the tightness and correct functioning of the conduit. Each participant was responsible for deciding how to achieve this, i.e., planning, conception, surface pretreatment, repair and any necessary reworking. The only additional condition imposed was that the repairs had to be performed without trench working, i.e., via the end manholes of the test conduits. There was no time limit.

High-pressure cleaning operations of fifteen flushing cycles per repair point (flushing load from fifteen years of operation, assuming annual flushing) were performed after completion of the work, in order to simulate operating load-ings. Slight to clear traces of the cleaning opera-tion remained apparent at many repaired points during the subsequent inspection.

FunctionThe function test evaluates whether the conduit section‘s assuredness of disposal has been restored. Every repaired point was awarded a grade by the system operators on the criteria of visual appearance, stabilization/protection of the damaged point, and possible flow obstructions.

In the case of the short liners, the surface, in the base zone, at least, was generally slightly roughened. In individual cases, glass fibers were also exposed, or detachment of material and cracking had occurred. Annular gaps or edges in the boundary zones were also measured on individual short liners.

In the injection and grouting/pressure-filling group, detachment of material had occurred in some cases in the Janßen Riss- und Scherben-sanierung, and in the KASRO 2 Komponenten-Verpresssystem. In most cases, such detachment of material was, it is true, of no importance for the sealing action of the repair and could be removed, but could also form obstructions to flow. In the case of the KA-TE PMO-Verfahren, small upturns on the edges of the resin bodies had occurred at a few points only. Flushing damage, significant in some cases, in the form of indentations, was observed in the case of the Stuttgarter Hülse, for which an incorrect tooth setting based on the manufacturer‘s data

tight repaired points, respectively. The Konudur Sewer Repair Kit (VP) short liners, in which weak points within the GRP laminate resulted in leaks, passed the tightness test up to the highest pres-sure level only in two of twelve cases. The other three short liners systems tested were all in the mid-range.

The results obtained with the three internal sleeves tested were similarly dispersed: in the case of the Stuttgarter Hülse, for which, accord-ing to the manufacturer‘s information, an incor-rect tooth dimension had inadvertently been used, thirteen of fifteen repaired points leaked at all pressure levels. Tightness at nine of twelve repaired points up to and including 0.5 bar and of one up to 0.1 bar was demonstrated for the Quick-Lock sleeve flared at one end, on the other hand. In the case of the Quick-Lock sleeve without flaring, five of twelve repaired points remained tight at pressure levels of between 0.05 bar and 0.5 bar after high-pressure cleaning.

Test resultsIt is apparent, all in all, that successful conduit rehabilitation using repair systems is possible in principle. Significant quality differences are apparent, however. The grades awarded in each system group range, for example, from „Good“ to „Sufficient“. The system tests performed in the IKT test lines (weighting: 85%) and the

had resulted in incorrect tensioning of the sleeve. Edges, in some cases significant, had also formed on some sleeves, due to remnants of resin.

The two Quick-Lock sleeve variants tested pro-duced differing results: in the first model tested, with no flaring, defective teeth on the locking wheel were observed after high-pressure flush-ing. This caused declining tensioning of the sleeve, with a corresponding reduction in its internal diameter, and therefore leaks. The sleeve subse-quently tested, flared at one end, did not exhibit damage of this type. In both variants, upturns of a few millimeters can occur in the overlap zone of the sheet, depending on gap formation.

TightnessBefore and after high-pressure cleaning, all the repair points were subjected to hydraulic pres-sure testing for tightness, at increasing pressure levels of between 0.05 and 0.5 bar. The test times at each pressure level were between 15 and 30 minutes. The verdict of „Tight“ or „Not tight“ was awarded in the case of the tightness tests following the high-pressure flushing opera-tion (which was significant for evaluation by means of visual assessment of egress of water on the exterior side of the pipe at the point of repaired damage). Differentiation of the „Tight-ness“ test criterion was made on the basis of the six test-pressure levels.

In the injection and grouting/pressure-filling group, all the repaired points relevant for assess-ment remained tight up to at least 0.1 bar in the case of the Janßen Riss- und Scherbensanierung and the KA-TE PMO-Verfahren. At the highest pressure level, only six of the twelve repaired points (Janßen Riss- und Scherbensanierung) and twelve of fifteen repaired points (KA-TE PMO-Verfahren) remained tight at the high-est pressure level. In the case of the KASRO 2 Komponenten-Verpresssystem, on the other hand, eight of twelve repaired conduits were not tight at any pressure level. Difficulties had occurred with the pressure-filling operation dur-ing the repair operation, with the consequence that a number of damaged points had not been completely filled with the repair resin.The results of tightness testing also varied great-ly in the short liners group. The 3P-Plus Kurzliner and KM Kurzliner were significantly above the average, with a tightness rate of 11/12 and 9/11

50IKT

Page 3: Repair systems: Better than their reputation! - IKT · Repair systems: Better than their reputation! ... KA-TE PMO AG 2. Short liners ... Konudur Sewer Repair Kit (VP),

system suppliers‘ Quality Assurance (weighting: 15%) were evaluated.

The best result in the injection and grouting/pressure-filling group, and simultaneously the best result in the entire test, was achieved by the KA-TE PMO-Verfahren, which received the grade „Good“ (1.6), followed by the Janßen Riss- und Scherbensanierung, also with a grade of

„Good“ (2.3). The recently developed KASRO 2 Komponenten-Verpresssystem still exhibited sig-nificant need for optimization, and was awarded only a grade of „Sufficient“ (4.0).

In the lead in the short liners group are the KM-Kurzlinerand 3P-Plus-Kurzliner, each with the grade of „Good“ (2.2). The K-Liner (Grade: 2.8), the ALOCIT short liners (Grade: 2.9) and the Point-Liner® (Grade: 3.1) were all in the mid-range, with a grade of „Satisfactory“. The Konudur Sewer Repair Kit (VP), a recent development with a significant requirement for optimization, failed to achieve a grade better than „Sufficient“ (4.2).

A similar spread in the grades awarded was also apparent in the case of the internal sleeves: the modified Quick-Lock sleeve flared at one end achieved a „Good“ (2.2), whereas the previ-ously tested Quick-Lock sleeve without flaring received a „Satisfactory“ (3.1). The Stuttgar-ter Hülse (Grade: 4.3) manifested significant

weaknesses and is now no longer available in its present form for waste-water conduits but is, according to the manufacturer, instead now used in combination with a short liner.

All in all, all the systems exhibited various weak-nesses and strengths. The three systems which were awarded only the grade of „Sufficient“ can, in the development status as tested here, scarcely be recommended for practical use. The manufacturers of the three systems have, howev-er, already reacted to the results of the test, with the consequence that further development work has been initiated, and that these systems are no longer available in the form as tested at IKT.

On-site execution decisiveNot only the material components and selection of the system, but also on-site execution, are decisive for the quality of a repair. This applies to all systems, irrespective of their evaluation within the test scope. All working operations, ranging from the conception of the repair, e.g., the length and number of layers of a short liner, via the type and scope of preparatory work, up to and including the actual repair operation and finishing work, can have a significant influence on subsequent quality.

There is, in principle, the risk with all the repair systems that important work may be hurried - or even omitted - on site, whether for reasons of time and/or cost, and differing quality standards at the various contractors, or as a result of this work not being expressly specified - and there-fore not remunerated - by the client. This applies, in particular, to preparatory and support provi-sions, such as high-pressure flushing, cutting and milling work, and the withdrawal from service of conduit sections, the (lack of) satisfactory execu-tion of which is not immediately apparent at the acceptance inspection of the completed repair.

The client can combat these factors by ensuring that, at the initial stage, the necessary prepara-tory work is included in the invitation to tender. In a second step, the materials used, the nature and scope of the preparatory work performed, and of the repair systems, can be monitored - on a random-sample basis, if necessary - in the con-text of site supervision. Otherwise, repair docu-mentation, including images of the damaged point before starting work, after completion of

the preparatory work and after completion of the repair, should at least be required.

Product-improvement cycle stimulatedThe aim of the IKT product test is that of com-paratively evaluating the quality of repair sys-tems, outlining potential for improvement and, simultaneously, stimulating corresponding mar-ket pressure, in order that the suppliers utilize these potentials. The drain/sewer system opera-tor, as the client, is the person who stipulates the quality requirements for the products, and how the products perform on these criteria.

Four of the twelve systems tested have already been taken off the market as a result of the results obtained in these tests, or have been replaced by a modified system or a previously envisaged market launch postponed. Alterna-tives for two of the systems are already available on the market, and the two other systems are currently undergoing improvement.

AuthorsDipl.-Ing. (FH) Kathrin HartingDipl.-Ök. Roland W. WaniekIKT - Institute for Underground InfrastructureGelsenkirchen, Germany (Result tables on the following pages)

Example of injection/grouting without (top) and with (down) visible traces of high-pressure flushing

Example of sleeve without (top) and with (down) visible traces of high-pressure flushing

51 IKT

Page 4: Repair systems: Better than their reputation! - IKT · Repair systems: Better than their reputation! ... KA-TE PMO AG 2. Short liners ... Konudur Sewer Repair Kit (VP),

IKT product test

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en

3 B

ewer

tung

: vor

hand

en =

ja u

nd n

icht

vor

hand

en =

nei

n; Z

ulas

sung

/Zeu

gnis

se/N

achw

eise

müs

sen

für

die

im T

est

ein

gese

tzte

n M

ater

ialie

n ge

lten

4 B

ewer

tung

: „na

chge

wie

sen“

= V

erfa

hren

wur

de in

Bet

on-T

ests

trec

ke D

N 4

00/6

00 m

it dr

ei S

chad

ensb

ilder

n ge

test

et u

nd b

eide

Krit

erie

n „D

icht

heit“

und

„F

unkt

ions

fähi

gkei

t“ w

urde

n fü

r je

des

Sch

aden

sbild

mit

min

dest

ens

„aus

reic

hend

“ ( �

4,5)

bew

erte

t;

„n

icht

nac

hgew

iese

n1 “

= V

erfa

hren

wur

de g

etes

tet u

nd m

inde

sten

s ei

ne R

epar

atur

stel

le w

urde

in m

inde

sten

s ei

nem

der

Krit

erie

n „D

icht

heit“

und

„F

unkt

ions

fähi

gkei

t“ s

chle

chte

r al

s „a

usre

iche

nd“

bew

erte

t ; „

nich

t nac

hgew

iese

n2 “

= d

as V

erfa

hren

wird

für

Bet

onro

hre

DN

400

/600

ang

ebot

en, d

er A

nbie

ter

setz

te e

s je

doch

nic

ht im

Tes

t ein

;

„nic

ht a

ngeb

oten

“ =

Das

Ver

fahr

en w

ird n

icht

für

den

Ein

satz

in B

eton

rohr

en D

N 4

00/6

00 a

ngeb

oten

5

Bew

ertu

ng: „

nach

gew

iese

n“ =

Ver

fahr

en w

urde

in S

tein

zeug

-Tes

tstr

ecke

DN

300

mit

drei

und

icht

en M

uffe

n un

ter

Was

serz

utrit

t ein

gese

tzt s

owie

mit

Auß

enw

asse

rdru

ck b

elas

tet u

nd s

ämtli

che

Rep

arat

urst

elle

n ze

igte

n be

i der

Inne

nins

pekt

ion

kein

e W

asse

rein

tritt

e;

„n

icht

nac

hgew

iese

n“ =

Ver

fahr

en w

urde

get

este

t und

min

dest

ens

eine

Rep

arat

urst

elle

zei

gte

bei d

er In

neni

nspe

ktio

n W

asse

rein

tritt

e; „

nich

t gep

rüft

“ =

Ver

fahr

en w

urde

nic

ht g

etes

tet

*

Not

enbe

rech

nung

auf

Bas

is u

nger

unde

ter

Wer

te

Bew

ertu

ngss

chlü

ssel

der

Prü

ferg

ebni

sse:

Seh

r gu

t = 1

,0 -

1,5

. Gut

= 1

,6 -

2,5

. Bef

riedi

gend

= 2

,6 -

3,5

. Aus

reic

hend

= 3

,6 -

4,5

. Man

gelh

aft =

4,6

- 5

,5. U

ngen

ügen

d =

5,6

- 6

,0.

//

Syst

em te

sts i

n te

st li

nes:

Rep

air o

f thr

ee p

oint

s of d

amag

e in

eac

h ca

se in

four

sand

-cov

ered

ND

200/

ND 3

00 v

itrifi

ed c

lay t

est l

ines

and

ND

300/

ND 6

00 c

oncr

ete

pipe

s with

gre

ase

depo

sitio

ns

Dam

age

in v

itrifi

ed c

lay:

1) s

pallin

g 20

x20

cm, 2

) ext

ensiv

e cr

ack

ram

ifica

tion

acro

ss a

ppro

x. 1

m le

ngth

, 3) l

eaki

ng so

cket

with

cro

wn

crac

k an

d sp

allin

g (d

= 5

cm

)

Dam

age

in c

oncr

ete:

1) t

rans

vers

e cr

ack,

2) l

ongi

tudi

nal c

rack

s in

side

zone

and

cro

wn,

star

ting

from

tape

red

end

(l =

appr

ox. 1

m),

3) le

akin

g so

cket

with

cro

wn

crac

k an

d sp

allin

g (d

= 5

cm

)

Tabl

e 1:

IKT

„Rep

air s

yste

ms

for m

ain

drai

ns“

prod

uct t

est

Inje

ctio

n an

d gr

outin

g/pr

essu

re-fi

lling

syst

em

Eval

uatio

n of

func

tion

by v

isual

ass

essm

ent b

y sys

tem

ope

rato

rs o

n ba

sis o

f poi

nt sc

ores

(30%

wei

ghtin

g af

ter c

ompl

etio

n; 7

0% w

eigh

ting

afte

r HP

clean

ing)

: 100

poi

nts =

1.0

to 0

poi

nts =

6.0

; arit

hmet

ical a

vera

ging

and

stat

emen

t of p

oint

s in

grad

es u

sing

a lin

ear f

unct

ion

Eval

uatio

n on

bas

is of

inte

rnal

wat

er-p

ress

ure

test

s afte

r HP

clean

ing

(visu

al c

heck

ing

for e

scap

e of

wat

er);

grad

ing

depe

ndin

g on

pre

ssur

e le

vel w

ith n

o eg

ress

of w

ater

: 0.5

bar

= 1

.0 /

0.4

bar =

1.7

/ 0.

3 ba

r = 2

.3 /

0.2

bar =

3.0

/ 0.

1 ba

r = 3

.7 /

0.05

bar

= 4

.0 /

not t

ight

at

any p

ress

ure

= 6.

0; D

amag

e-ty

pe 2

(lon

gitu

dina

l cra

cks)

in th

e co

ncre

te te

st li

nes w

ere

elim

inat

ed fr

om th

e ev

alua

tion

due

to n

on-u

nifo

rm c

rack

ing

patte

rns

Eval

uatio

n: e

xiste

nt =

yes

and

non

-exis

tent

= n

o; a

ppro

val/c

ertif

icate

s/pr

oof a

nalys

es m

ust a

pply

to th

e m

ater

ials

used

in th

e te

stEv

alua

tion:

„pr

oven

“ =

syst

em te

sted

in N

D 40

0/60

0 co

ncre

te te

st li

ne w

ith th

ree

type

s of d

amag

e, b

oth

crite

ria „

Tigh

tnes

s“ a

nd „

Func

tion“

ass

esse

d as

at l

east

„Su

fficie

nt“

(≤ 4

.5) f

or e

ach

type

of d

amag

e;„n

ot p

rove

n1“

= sy

stem

test

ed a

nd a

t lea

st o

ne re

paire

d po

int a

sses

sed

as p

oore

r tha

n „S

uffic

ient

“ fo

r at l

east

one

of t

he c

riter

ia o

f „Ti

ghtn

ess“

and

„Fu

nctio

n“; „

not p

rove

n2 “ =

the

syst

em is

ava

ilabl

e fo

r ND

400/

600

conc

rete

pip

es, b

ut th

e su

pplie

r did

not

use

it in

the

test

;„n

ot a

vaila

ble“

= th

e sy

stem

is n

ot a

vaila

ble

for u

se in

ND

400/

600

conc

rete

pip

esEv

alua

tion:

„pr

oven

“ =

syst

em lo

aded

in N

D 30

0 vit

rifie

d cla

y tes

t lin

e w

ith th

ree

leak

ing

sock

ets w

ith in

gres

s of w

ater

and

with

ext

erna

l wat

er p

ress

ure,

and

all

repa

ired

poin

ts e

xhib

ited

no in

gres

s of w

ater

upo

n in

tern

al in

spec

tion;

„not

pro

ven“

= sy

stem

test

ed, a

t lea

st o

ne re

paire

d po

int e

xhib

ited

ingr

ess o

f wat

er u

pon

inte

rnal

insp

ectio

n; „

not t

este

d“ =

syst

em n

ot te

sted

Grad

e ca

lcula

ted

usin

g no

n-ro

unde

d of

f dat

a

Key t

o te

st-re

sult

grad

es: E

xcel

lent

= 1

.0 -

1.5;

Goo

d =

1.6

- 2.5

; Sat

isfac

tory

= 2

.6 -

3.5;

Suf

ficie

nt =

3.6

- 4.

5; D

efici

ent =

4.6

- 5.

5; In

suffi

cient

= 5

.6 -

6.0

1 2 3 4 5 *Syst

em t

ype

Gro

utin

g/Pr

essu

re-F

illin

g M

etho

dIn

ject

ion

Met

hod

Syst

em s

uppl

ier

KA-T

E PM

O A

GU

mw

eltt

echn

ik F

ranz

Janß

en G

mbH

ProK

ASR

O M

echa

tron

ik G

mbH

Syst

em

KA-T

E PM

O-V

erfa

hren

Janß

en R

iss-

und

Sch

erbe

nsan

ieru

ngKA

SRO

2 K

ompo

nent

en-V

erpr

esss

yste

m

Resin

sys

tem

use

dBA

SF C

ON

CRES

IVE®

185

0 an

d EP

OXS

ON

IC® E

X 13

55Ja

GoP

urKo

nodu

r Rob

opre

ss 0

7 w

ith K

onod

ur A

dditi

ve R

P

IKT

test

ver

dict

*G

OO

D (1

.6)

GO

OD

(2.3

)SU

FFIC

IEN

T (4

.0)

Syst

em t

ests

in t

est

lines

(wei

ghti

ng 8

5%)

Goo

d (1

.7)

Sati

sfac

tory

(2.6

)Su

ffic

ient

(4.2

)Fu

nctio

n1 (50

%)

2.0

3.5

4.2

Tigh

tnes

s2 (50

%)

1.3

1.6

4.2

Syst

em-s

uppl

iers

' Qua

lity

Ass

uran

ce3

(wei

ghti

ng 1

5%)

Exce

llent

(1.0

)Ex

celle

nt (1

.0)

Sati

sfac

tory

(3.0

)Sy

stem

man

ual (

20%

)Ye

sYe

sYe

sTr

aini

ng p

rovi

sions

(20%

)Ye

sYe

sYe

sTh

ird-p

arty

sup

ervi

sion

(20%

)Ye

sYe

sN

oEn

viro

nmen

tal i

mpa

ct (1

0%)

Yes

Yes

Yes

DIBt

app

rova

l (10

%)

Yes

Yes

No

Test

cer

tifica

tes

(10%

)Ye

sYe

sN

o Ba

ck-tr

acin

g of

sup

ply

rout

e (1

0%)

Yes

Yes

Yes

Add

itio

nal i

nfor

mat

ion:

Im

pres

sion

gain

ed fr

om s

ite in

vest

igat

ions

and

test

-line

use

Prac

tical

ly-or

ient

ated

han

dlin

g an

d us

ePr

actic

ally-

orie

ntat

ed h

andl

ing

and

use

Diffi

culti

es w

ith p

ress

ure-

fillin

g du

ring

test

, sys

tem

not

m

atur

e fo

r pra

ctica

l use

Suita

bilit

y fo

r ova

l con

cret

e se

ctio

n, N

D 40

0/60

04pr

oven

not a

vaila

ble

not a

vaila

ble

Suita

bilit

y fo

r use

with

ingr

ess

of g

roun

dwat

er a

nd e

xter

nal w

ater

pr

essu

re5

prov

enno

t pro

ven

not t

este

d

Avai

labl

e fo

r the

dia

met

ers

(info

rmat

ion

from

sup

plie

r)Ro

und

sect

ion:

ND

150

- ND

800

Ova

l sec

tion:

N

D 30

0/45

0 - N

D 60

0/90

0Ro

und

sect

ion:

ND

100

- ND

700

Ova

l sec

tion:

not

for u

se w

ith o

val s

ectio

n lin

esRo

und

sect

ion:

ND

200

- ND

600

Ova

l sec

tion:

not

sui

tabl

e fo

r use

with

ova

l sec

tion

Pote

ntia

l for

impr

ovem

ent

/Re

mov

al o

f rem

nant

s of

resin

; mod

ifica

tion

of p

acke

r sy

stem

to p

erm

it ea

sier p

ositi

onin

g

Prol

onge

d re

sin-re

actio

n tim

e; o

ptim

izatio

n of

resin

feed

-lin

e ch

angi

ng; i

ndiv

idua

l pre

ssur

e-fil

ling

of d

amag

ed

poin

ts; r

emov

al o

f rem

nant

s of

resin

Rem

arks

//

Syst

em n

ot lo

nger

ava

ilabl

e in

this

form

52IKT

Page 5: Repair systems: Better than their reputation! - IKT · Repair systems: Better than their reputation! ... KA-TE PMO AG 2. Short liners ... Konudur Sewer Repair Kit (VP),

Syst

em te

sts i

n te

st li

nes:

Rep

air o

f thr

ee p

oint

s of d

amag

e in

eac

h ca

se in

ND

200/

ND 3

00 (j

acke

ted)

vitr

ified

cla

y tes

t lin

es a

nd N

D 30

0/ND

600

con

cret

e pi

pes (

expo

sed)

, all

pipe

s with

gre

ase

depo

sitio

ns

Dam

age

in v

itrifi

ed c

lay:

1) s

pallin

g 20

x20

cm, 2

) ext

ensiv

e cr

ack

ram

ifica

tion

acro

ss a

ppro

x. 1

m le

ngth

, 3) l

eaki

ng so

cket

with

cro

wn

crac

k an

d sp

allin

g (d

= 5

cm

)

Dam

age

in c

oncr

ete:

1) t

rans

vers

e cr

ack,

2) l

ongi

tudi

nal c

rack

s in

side

zone

and

cro

wn,

star

ting

from

tape

red

end

(l =

appr

ox. 1

m),

3) le

akin

g so

cket

with

cro

wn

crac

k an

d sp

allin

g (d

= 5

cm

)

Tabl

e 2:

IKT

„Rep

air s

yste

ms

for m

ain

drai

ns“

prod

uct t

est

Shor

t lin

ers

Eval

uatio

n by

visu

al a

sses

smen

t by s

yste

m o

pera

tors

on

basis

of p

oint

scor

es (3

0% w

eigh

ting

afte

r com

plet

ion;

70%

wei

ghtin

g af

ter H

P cle

anin

g): 1

00 p

oint

s = 1

.0 to

0 p

oint

s = 6

.0; a

rithm

etica

l ave

ragi

ng a

nd st

atem

ent o

f poi

nts i

n gr

ades

usin

g a

linea

r fun

ctio

n; a

vera

ging

of t

he g

rade

ave

rage

s for

the

vitrif

ied

clay a

nd c

oncr

ete

test

line

sEv

alua

tion

on b

asis

of in

tern

al w

ater

-pre

ssur

e te

sts a

fter H

P cle

anin

g (v

isual

che

ckin

g fo

r esc

ape

of w

ater

); gr

adin

g de

pend

ing

on p

ress

ure

leve

l with

no

egre

ss o

f wat

er: 0

.5 b

ar =

1.0

/ 0.

4 ba

r = 1

.7 /

0.3

bar =

2.3

/ 0.

2 ba

r = 3

.0 /

0.1

bar =

3.7

/ 0.

05 b

ar =

4.0

/ no

t tig

ht a

tan

y pre

ssur

e =

6.0;

Dam

age-

type

2 (l

ongi

tudi

nal c

rack

s) in

the

conc

rete

test

line

s wer

e el

imin

ated

from

the

eval

uatio

n du

e to

non

-uni

form

cra

ckin

g pa

ttern

sEv

alua

tion:

exis

tent

= y

es a

nd n

on-e

xiste

nt =

no;

app

rova

l/cer

tifica

tes/

proo

f ana

lyses

mus

t app

ly to

the

mat

eria

ls us

ed in

the

test

Eval

uatio

n: „

prov

en“

= sy

stem

test

ed in

ND

400/

600

conc

rete

test

line

with

thre

e ty

pes o

f dam

age,

bot

h cr

iteria

„Ti

ghtn

ess“

and

„Fu

nctio

n“ a

sses

sed

as a

t lea

st „

Suffi

cient

“ (≤

4.5

) for

eac

h ty

pe o

f dam

age;

„not

pro

ven1

“ =

syst

em te

sted

and

at l

east

one

repa

ired

poin

t ass

esse

d as

poo

rer t

han

„Suf

ficie

nt“

for a

t lea

st o

ne o

f the

crit

eria

of „

Tigh

tnes

s“ a

nd „

Func

tion“

; „no

t pro

ven2 “

= th

e sy

stem

is a

vaila

ble

for N

D 40

0/60

0 co

ncre

te p

ipes

, but

the

supp

lier d

id n

ot u

se it

in th

e te

st;

„not

ava

ilabl

e“ =

the

syst

em is

not

ava

ilabl

e fo

r use

in N

D 40

0/60

0 co

ncre

te p

ipes

Eval

uatio

n: „

prov

en“

= sy

stem

load

ed in

ND

300

vitrif

ied

clay t

est l

ine

with

thre

e le

akin

g so

cket

s with

ingr

ess o

f wat

er a

nd w

ith e

xter

nal w

ater

pre

ssur

e, a

nd a

ll re

paire

d po

ints

exh

ibite

d no

ingr

ess o

f wat

er u

pon

inte

rnal

insp

ectio

n;„n

ot p

rove

n“ =

syst

em te

sted

, at l

east

one

repa

ired

poin

t exh

ibite

d in

gres

s of w

ater

upo

n in

tern

al in

spec

tion;

„no

t tes

ted“

= sy

stem

not

test

edDa

mag

e-ty

pe 3

, vitr

ified

cla

y, ND

200

not

eva

luat

ed, d

ue to

not

suffi

cient

ly cle

ar te

st re

sult

Dam

age-

type

1, v

itrifi

ed c

lay,

ND 2

00 a

nd D

amag

e-ty

pe 3

, vitr

ified

cla

y, ND

300

, not

eva

luat

ed d

ue to

cra

ckin

g ad

ditio

nal t

o th

e ba

sis d

amag

e-ty

pe, w

ith u

ncle

ar c

ause

sDa

mag

e-ty

pe 3

, vitr

ified

cla

y, ND

200

not

eva

luat

ed d

ue to

cra

ckin

g ad

ditio

nal t

o th

e ba

sic d

amag

e-ty

pe, w

ith u

ncle

ar c

ause

sDa

mag

e-ty

pe 1

, vitr

ified

cla

y, ND

300

not

eva

luat

ed, d

ue to

cov

erin

g of

end

of s

hort

liner

as a

resu

lt of

unp

lann

ed p

ositi

onin

g er

ror (

over

lapp

ing)

by t

he re

pair

cont

ract

or (a

pplie

s to

the

first

-laid

end

in F

R an

d th

e en

d su

bjec

ted

to g

reat

er lo

ads d

urin

g HP

cle

anin

g)Gr

ade

calcu

late

d us

ing

non-

roun

ded

off d

ata

Key t

o te

st-re

sult

grad

es: E

xcel

lent

= 1

.0 -

1.5;

Goo

d =

1.6

- 2.5

; Sat

isfac

tory

= 2

.6 -

3.5;

Suf

ficie

nt =

3.6

- 4.

5; D

efici

ent =

4.6

- 5.

5; In

suffi

cient

= 5

.6 -

6.0

1 2 3 4 5 6 7 8 9 *Syst

em s

uppl

ier

siko

tec

Gm

bH /

JT-e

lekt

roni

k G

mbH

KMG

Pip

e Te

chno

logi

es G

mbH

Kuch

em G

mbH

ALO

CIT

Chem

ie G

mbH

Bode

nben

der

Gm

bHM

C-Ba

uche

mie

Mül

ler

Gm

bH &

Co.

KG

Syst

em

3P-P

lus-

Kurz

liner

KM-K

urzl

iner

K-LI

NER

ALO

CIT

Kurz

liner

Poin

t-Li

ner®

Konu

dur

Sew

er R

epai

r Ki

t (V

P)

Resi

n sy

stem

use

d3P

res

inA

RALD

ITE

GY

240

BD,

wit

h A

RAD

UR

16 B

D,

air

expe

ller,

curi

ng a

gent

ARA

LDIT

E G

Y 25

0 BD

, w

ith

ARA

DU

R 16

BD

ALO

CIT

Resi

n® A

loca

n,

wit

h Pe

roxa

n BP

50+

(c

urin

g ag

ent)

Mul

ti -

PL® r

esin

Konu

dur

266

SR (V

P)

IKT

test

ver

dict

*G

OO

D (2

.2)

GO

OD

(2.2

)SA

TISF

ACTO

RY (2

.8)

SATI

SFAC

TORY

(2.9

)SA

TISF

ACTO

RY (3

.1)

SUFF

ICIE

NT

(4.2

)Sy

stem

tes

ts in

tes

t lin

es (w

eigh

ting

85%

)G

ood

(2.4

)G

ood

(2.2

)Sa

tisf

acto

ry (3

.1)

Sati

sfac

tory

(3.3

)Sa

tisf

acto

ry (3

.4)

Suff

icie

nt (4

.3)

Func

tion1 (

50%

) 3.

32.

42.

32.

693.

03.

6

Tigh

tnes

s2 (50

%)

1.4

2.06

2.97

4.08

3.9

5.0

Syst

em-s

uppl

iers

' Qua

lity

Ass

uran

ce3

(wei

ghti

ng 1

5%)

Exce

llent

(1.0

)G

ood

(2.0

)Ex

celle

nt (1

.5)

Exce

llent

(1.0

)Ex

celle

nt (1

.0)

Suff

icie

nt (4

.0)

Syst

em m

anua

l (20

%)

Yes

Yes

Yes

Yes

Yes

Yes

Trai

ning

pro

visio

ns (2

0%)

Yes

Yes

Yes

Yes

Yes

No

Third

-par

ty s

uper

visio

n (2

0%)

Yes

Yes

Yes

Yes

Yes

No

Envi

ronm

enta

l im

pact

(10%

)Ye

sYe

sYe

sYe

sYe

sYe

s

DIBt

app

rova

l (10

%)

Yes

No

No

Yes

Yes

No

Test

cer

tifica

tes

(10%

)Ye

sN

oYe

sYe

sYe

sN

o

Back

-trac

ing

of s

uppl

y ro

ute

(10%

)Ye

sYe

sYe

sYe

sYe

sYe

s

Add

itio

nal i

nfor

mat

ion:

Im

pres

sion

gain

ed fr

om s

ite in

vest

igat

ions

an

d te

st-li

ne u

se

Prac

tical

ly-or

ient

ated

han

dlin

g an

d us

e,

extre

mel

y ex

tens

ive

cutti

ng w

ork

in te

stPr

actic

ally-

orie

ntat

ed h

andl

ing

and

use

Prac

tical

ly-or

ient

ated

han

dlin

g an

d us

ePr

actic

ally-

orie

ntat

ed h

andl

ing

and

use

Prac

tical

ly-or

ient

ated

han

dlin

g an

d us

ePr

actic

ally-

orie

ntat

ed h

andl

ing

and

use

Suita

bilit

y fo

r ova

l con

cret

e se

ctio

n, N

D 40

0/60

04no

t pro

ven2

not a

vaila

ble

not a

vaila

ble

not p

rove

n1no

t pro

ven2

not a

vaila

ble

Suita

bilit

y fo

r use

with

ingr

ess

of g

roun

dwat

er

and

exte

rnal

wat

er p

ress

ure5

prov

enpr

oven

not t

este

dno

t tes

ted

not t

este

dno

t tes

ted

Avai

labl

e fo

r the

dia

met

ers

(info

rmat

ion

from

su

pplie

r) Ro

und

sect

ion:

ND

100

- ND

700

Ova

l sec

tion:

ND

250/

375

- ND

500/

750

Roun

d se

ctio

n: N

D 15

0 - N

D 60

0 O

val s

ectio

n: n

ot u

sed

Roun

d se

ctio

n: N

D 10

0 - N

D 10

00 O

val

sect

ion:

not

use

dRo

und

sect

ion:

ND

100

- ND

800

Ova

l sec

tion:

ND

200/

300

- ND

500/

750

Roun

d se

ctio

n: N

D 10

0 - N

D 12

00

Ova

l sec

tion:

ND

250/

375

- ND

400/

600

Roun

d se

ctio

n: N

D 10

0 - N

D 80

0 O

val s

ectio

n: n

ot u

sed

Pote

ntia

l for

impr

ovem

ent

Impr

ove

flush

ing

resis

tanc

eTh

ree-

laye

r ins

talla

tion

in c

ase

of m

issin

g w

all e

lem

ents

, eve

n in

sm

all N

DsIm

prov

e flu

shin

g re

sista

nce

(pos

sibly

with

th

ree-

laye

r sho

rt lin

er)

Incr

ease

resin

visc

osity

; pos

sibly:

incr

ease

sc

ope

of p

repa

rato

ry w

ork

Impr

ove

seal

ing

actio

nIm

prov

e la

min

ate'

s se

alin

g ac

tion

and

flush

ing

resis

tanc

e

Rem

arks

//

//

Use

of a

n ad

ditio

nal P

ES

nonw

oven

in a

ll N

DsSy

stem

no

long

er a

vaila

ble

53 IKT

Page 6: Repair systems: Better than their reputation! - IKT · Repair systems: Better than their reputation! ... KA-TE PMO AG 2. Short liners ... Konudur Sewer Repair Kit (VP),

IKT product test

©20

09 A

ll rig

hts

rese

rved

by

IKT

- In

stitu

t für

Unt

erird

isch

e In

fras

truk

tur

gGm

bH

Tab

. 3:

Erg

ebni

sse

des

IKT

- W

aren

test

s „R

epar

atur

verf

ahre

n fü

r H

aupt

kanä

le“

– In

nenm

ansc

hette

n

IKT

- W

aren

test

„R

epar

atu

rver

fah

ren

r H

aup

tkan

äle“

In

nen

man

sch

ette

n

Sys

tem

prüf

unge

n in

Tes

tstr

ecke

n:

R

epar

atur

von

je d

rei S

chad

ensb

ilder

n in

Tes

tstr

ecke

n au

s S

tein

zeug

rohr

en D

N 2

00 u

nd D

N 3

00 (

umm

ante

lt) s

owie

Bet

onro

hre

n D

N 3

00 u

nd D

N 6

00 (

frei

lieg

end)

, sä

mtli

che

Roh

re m

it F

etta

blag

erun

gen,

S

chad

ensb

ilder

in S

tein

zeu

g: 1

) A

usbr

uch

20x2

0 cm

, 2)

aus

gede

hnte

Ris

sver

zwe

igun

g üb

er c

a. 1

m L

änge

, 3)

und

icht

e M

uffe

mit

Sch

eite

lris

s un

d A

usbr

uch

(d =

5 c

m),

S

chad

ensb

ilder

in B

eton

: 1)

Que

rris

s, 2

) Lä

ngsr

isse

in K

ämpf

er u

nd S

chei

tel v

om S

pitz

ende

aus

gehe

nd (

l = c

a. 1

m),

3)

undi

chte

Muf

fe m

it S

chei

telri

ss u

nd A

usbr

uch

(d =

5 c

m).

Ver

fah

ren

san

bie

ter

UH

RIG

Kan

alte

chn

ik G

mb

H

UH

RIG

Kan

alte

chn

ik G

mb

H

Haa

s G

mb

H &

Co

. KG

Qu

ick-

Lo

ck m

it e

inse

itig

er A

ufb

örd

elu

ng

Q

uic

k-L

ock

S

tutt

gar

ter

lse

Ver

fah

ren

E

ing

ese

tzte

s D

ich

tun

gs

sys

tem

E

PD

M-G

um

mid

ich

tun

g

EP

DM

-Gu

mm

idic

htu

ng

S

pac

hte

lmas

se 0

3567

L51

IKT

– P

rüfu

rtei

l*

GU

T (

2,2)

B

EF

RIE

DIG

EN

D (

3,1)

A

US

RE

ICH

EN

D (

4,3)

S

yste

mp

rüfu

ng

en in

Tes

tstr

eck

en (

Gew

ich

tun

g 8

5 %

) g

ut

(2,4

) b

efri

ed

ige

nd

(3,

4)

ausr

eich

end

(4,

3)

Fun

ktio

nsfä

higk

eit1 (

50 %

) 2,

9 3,

1 3.

6

Dic

hthe

it2 (50

%)

1,9

3,7

5,1

Qu

alit

äts

sich

eru

ng

der

Ver

fah

ren

san

bie

ter3 (

Gew

ich

tun

g 1

5 %

) se

hr

gu

t (1

,5)

seh

r g

ut

(1,5

) au

srei

chen

d (

4,0)

Ver

fahr

ens

hand

buc

h

(20

%)

ja

ja

ja

Sch

ulun

gen

(2

0 %

) ja

ja

ne

in

Fre

mdü

berw

ach

ung

(20

%)

ja

ja

ja

Um

wel

tver

träg

lichk

eit

(10

%)

ja

ja

nein

DIB

t – Z

ulas

sung

(10

%)

ja

ja

nein

Prü

fzeu

gnis

se

(1

0 %

) ja

ja

ne

in

Rüc

kver

folg

ung

des

Lief

erw

egs

(10

%)

nein

ne

in

nein

Zu

satz

info

rma

tio

nen

Ein

druc

k au

s B

aust

elle

nunt

ersu

chun

gen

und

Tes

tstr

ecke

nein

satz

pr

axis

gere

chte

Han

dhab

ung

prax

isge

rech

te H

andh

abun

g pr

axis

gere

chte

Han

dhab

ung;

V

orve

rpre

ssun

g sä

mtli

cher

Sch

äden

im T

est

Ein

satz

fähi

gkei

t Bet

on-E

ipro

fil D

N 4

00/6

00 4

nich

t ang

ebot

en

nich

t ang

ebot

en

nich

t nac

hgew

iese

n1

Ein

satz

fähi

gkei

t unt

er G

rund

was

serz

utrit

t und

Au

ßen

was

serd

ruck

5 na

chge

wie

sen

nich

t gep

rüft

nich

t gep

rüft

Lief

erba

r fü

r D

urc

hmes

ser

(lt. A

nbie

ter)

K

reis

prof

il: D

N 1

50 -

DN

800

E

ipro

fil: k

ein

Ein

satz

K

reis

prof

il: D

N 1

50 -

DN

800

E

ipro

fil: k

ein

Ein

satz

K

reis

prof

il: D

N 7

0 -

DN

200

0 E

ipro

fil: b

is D

N 9

00/1

350

Ver

bes

seru

ng

smö

glic

hke

iten

K

ante

n im

Übe

rlapp

ungs

bere

ich

min

dern

S

pülb

estä

ndig

keit

verb

esse

rn, h

ydra

ulis

che

E

igen

scha

ften

der

Man

sche

tte v

erbe

sser

n V

ersp

annu

ng d

er M

ansc

hette

und

D

icht

wirk

ung

verb

esse

rn

Bem

erk

un

g

/

/

Ver

fahr

en w

ird fü

r di

esen

Anw

endu

ngsf

all

nich

t meh

r an

gebo

ten

1 B

ewer

tung

der

Fun

ktio

nsfä

higk

eit a

nhan

d op

tisch

er B

eurt

eilu

ng d

urch

Net

zbet

reib

er a

nhan

d P

unkt

ever

gabe

(30

% G

ewic

htun

g na

ch F

ertig

stel

lung

; 70

% G

ewic

htun

g na

ch H

D-R

eini

gung

): 1

00 P

unkt

e =

1,0

bis

0 P

unkt

e =

6,0

; arit

hmet

isch

e M

ittel

wer

tbild

ung

und

Ab

bild

ung

der

Pun

kte

in N

oten

dur

ch e

ine

linea

re F

unkt

ion

2 B

ewer

tung

auf

Bas

is v

on W

asse

rinne

ndru

ckpr

üfun

gen

nach

HD

-Rei

nigu

ng (

optis

che

Kon

trol

le a

uf W

asse

raus

tritt

e); B

enot

ung

in A

bhän

gigk

eit

von

Dru

ckst

ufe

ohne

Was

sera

ustr

itte:

0,

5 ba

r =

1,0

/ 0

,4 b

ar =

1,7

/ 0

,3 b

ar =

2,3

/ 0

,2 b

ar =

3,0

/ 0

,1 b

ar

= 3

,7 /

0,0

5 ba

r =

4,0

/ a

uf k

eine

r D

ruck

stuf

e di

cht =

6,0

;

S

chad

ensb

ild 2

(Lä

ngris

se)

der

Bet

onte

stst

reck

en w

urde

auf

grun

d un

einh

eitli

cher

Ris

sbild

unge

n au

s de

r W

ertu

ng g

enom

men

3

Bew

ertu

ng: v

orha

nden

= ja

und

nic

ht v

orha

nden

= n

ein;

Zul

assu

ng/Z

eugn

isse

/Nac

hwei

se m

üsse

n fü

r di

e im

Tes

t ein

gese

tzte

n M

ater

ialie

n ge

lten

4 B

ewer

tung

: „na

chge

wie

sen“

= V

erfa

hren

wur

de in

Bet

on-T

ests

trec

ke D

N 4

00/6

00 m

it dr

ei S

chad

ensb

ilder

n ge

test

et u

nd b

eide

Krit

erie

n „D

icht

heit“

und

„F

unkt

ions

fähi

gkei

t“ w

urde

n fü

r je

des

Sch

aden

sbild

mit

min

dest

ens

„aus

reic

hend

“ ( �

4,5)

bew

erte

t;

„n

icht

nac

hgew

iese

n1 “

= V

erfa

hren

wur

de g

etes

tet u

nd m

inde

sten

s ei

ne R

epar

atur

stel

le w

urde

in m

inde

sten

s ei

nem

der

Krit

erie

n „D

icht

heit“

und

„F

unkt

ions

fähi

gkei

t“ s

chle

chte

r al

s „a

usre

iche

nd“

bew

erte

t ; „

nich

t nac

hgew

iese

n2 “

= d

as V

erfa

hren

wird

für

Bet

onro

hre

DN

400

/600

ang

ebot

en, d

er A

nbie

ter

setz

te e

s je

doch

nic

ht im

Tes

t ein

;

„nic

ht a

ngeb

oten

“ =

Das

Ver

fahr

en w

ird n

icht

für

den

Ein

satz

in B

eton

rohr

en D

N 4

00/6

00 a

ngeb

oten

5

Bew

ertu

ng: „

nach

gew

iese

n“ =

Ver

fahr

en w

urde

in S

tein

zeug

-Tes

tstr

ecke

DN

300

mit

drei

und

icht

en M

uffe

n un

ter

Was

serz

utrit

t ein

gese

tzt s

owie

mit

Auß

enw

asse

rdru

ck b

elas

tet u

nd s

ämtli

che

Rep

arat

urst

elle

n ze

igte

n be

i der

Inne

nins

pekt

ion

kein

e W

asse

rein

tritt

e;

„n

icht

nac

hgew

iese

n“ =

Ver

fahr

en w

urde

get

este

t und

min

dest

ens

eine

Rep

arat

urst

elle

zei

gte

bei d

er In

neni

nspe

ktio

n W

asse

rein

tritt

e; „

nich

t gep

rüft

“ =

Ver

fahr

en w

urde

nic

ht g

etes

tet

*

Not

enbe

rech

nung

auf

Bas

is u

nger

unde

ter

Wer

te

Bew

ertu

ngss

chlü

ssel

der

Prü

ferg

ebni

sse:

Seh

r gu

t = 1

,0 -

1,5

. Gut

= 1

,6 -

2,5

. Bef

riedi

gend

= 2

,6 -

3,5

. Aus

reic

hend

= 3

,6 -

4,5

. Man

gelh

aft =

4,6

- 5

,5. U

ngen

ügen

d =

5,6

- 6

,0.

Syst

em te

sts i

n te

st li

nes:

Rep

air o

f thr

ee p

oint

s of d

amag

e in

eac

h ca

se in

ND

200/

ND 3

00 (j

acke

ted)

vitr

ified

cla

y tes

t lin

es a

nd N

D 30

0/ND

600

con

cret

e pi

pes (

expo

sed)

, all

pipe

s with

gre

ase

depo

sitio

ns

Dam

age

in v

itrifi

ed c

lay:

1) s

pallin

g 20

x20

cm, 2

) ext

ensiv

e cr

ack

ram

ifica

tion

acro

ss a

ppro

x. 1

m le

ngth

, 3) l

eaki

ng so

cket

with

cro

wn

crac

k an

d sp

allin

g (d

= 5

cm

)

Dam

age

in c

oncr

ete:

1) t

rans

vers

e cr

ack,

2) l

ongi

tudi

nal c

rack

s in

side

zone

and

cro

wn,

star

ting

from

tape

red

end

(l =

appr

ox. 1

m),

3) le

akin

g so

cket

with

cro

wn

crac

k an

d sp

allin

g (d

= 5

cm

)

Tabl

e 3:

IKT

„Rep

air s

yste

ms

for m

ain

drai

ns“

prod

uct t

est

Inte

rnal

slee

ves

Eval

uatio

n of

func

tion

by v

isual

ass

essm

ent b

y sys

tem

ope

rato

rs o

n ba

sis o

f poi

nt sc

ores

(30%

wei

ghtin

g af

ter c

ompl

etio

n; 7

0% w

eigh

ting

afte

r HP

clean

ing)

: 100

poi

nts =

1.0

to 0

poi

nts =

6.0

; arit

hmet

ical a

vera

ging

and

stat

emen

t of p

oint

s in

grad

es u

sing

a lin

ear f

unct

ion

Eval

uatio

n on

bas

is of

inte

rnal

wat

er-p

ress

ure

test

s afte

r HP

clean

ing

(visu

al c

heck

ing

for e

scap

e of

wat

er);

grad

ing

depe

ndin

g on

pre

ssur

e le

vel w

ith n

o eg

ress

of w

ater

: 0.5

bar

= 1

.0 /

0.4

bar =

1.7

/ 0.

3 ba

r = 2

.3 /

0.2

bar =

3.0

/ 0.

1 ba

r = 3

.7 /

0.05

bar

= 4

.0 /

not t

ight

at a

ny p

ress

ure

= 6.

0;Da

mag

e-ty

pe 2

(lon

gitu

dina

l cra

cks)

in th

e co

ncre

te te

st li

nes w

ere

elim

inat

ed fr

om th

e ev

alua

tion

due

to n

on-u

nifo

rm c

rack

ing

patte

rns

Eval

uatio

n: e

xiste

nt =

yes

and

non

-exis

tent

= n

o; a

ppro

val/c

ertif

icate

s/pr

oof a

nalys

es m

ust a

pply

to th

e m

ater

ials

used

in th

e te

stEv

alua

tion:

„pr

oven

“ =

syst

em te

sted

in N

D 40

0/60

0 co

ncre

te te

st li

ne w

ith th

ree

type

s of d

amag

e, b

oth

crite

ria „

Tigh

tnes

s“ a

nd „

Func

tion“

ass

esse

d as

at l

east

„Su

fficie

nt“

(≤ 4

.5) f

or e

ach

type

of d

amag

e;„n

ot p

rove

n1“

= sy

stem

test

ed a

nd a

t lea

st o

ne re

paire

d po

int a

sses

sed

as p

oore

r tha

n „S

uffic

ient

“ fo

r at l

east

one

of t

he c

riter

ia o

f „Ti

ghtn

ess“

and

„Fu

nctio

n“; „

not p

rove

n2 “ =

the

syst

em is

ava

ilabl

e fo

r ND

400/

600

conc

rete

pip

es, b

ut th

e su

pplie

r did

not

use

it in

the

test

;„n

ot a

vaila

ble“

= th

e sy

stem

is n

ot a

vaila

ble

for u

se in

ND

400/

600

conc

rete

pip

esEv

alua

tion:

„pr

oven

“ =

syst

em lo

aded

in N

D 30

0 vit

rifie

d cla

y tes

t lin

e w

ith th

ree

leak

ing

sock

ets w

ith in

gres

s of w

ater

and

with

ext

erna

l wat

er p

ress

ure,

and

all

repa

ired

poin

ts e

xhib

ited

no in

gres

s of w

ater

upo

n in

tern

al in

spec

tion;

„not

pro

ven“

= sy

stem

test

ed, a

t lea

st o

ne re

paire

d po

int e

xhib

ited

ingr

ess o

f wat

er u

pon

inte

rnal

insp

ectio

n; „

not t

este

d“ =

syst

em n

ot te

sted

Grad

e ca

lcula

ted

usin

g no

n-ro

unde

d of

f dat

a

Key t

o te

st-re

sult

grad

es: E

xcel

lent

= 1

.0 -

1.5;

Goo

d =

1.6

- 2.5

; Sat

isfac

tory

= 2

.6 -

3.5;

Suf

ficie

nt =

3.6

- 4.

5; D

efici

ent =

4.6

- 5.

5; In

suffi

cient

= 5

.6 -

6.0

1 2 3 4 5 *Syst

em s

uppl

ier

UH

RIG

Kan

alte

chni

k G

mbH

U

HRI

G K

anal

tech

nik

Gm

bHH

aas

Gm

bH &

Co.

KG

Syst

em

Qui

ck-L

ock

flare

d at

one

end

Qui

ck-L

ock

Stut

tgar

ter

Hül

se

Seal

ing

syst

em u

sed

EPD

M r

ubbe

r se

alEP

DM

rub

ber

seal

Gro

utin

g Co

mpo

und

0356

7L51

IKT

test

ver

dict

*G

OO

D (2

.2)

SATI

SFAC

TORY

(3.1

)SU

FFIC

IEN

T (4

.3)

Syst

em te

sts

in te

st li

nes

(wei

ghtin

g 85

%)

Goo

d (2

.4)

Satis

fact

ory

(3.4

)Su

fficie

nt (4

.3)

Func

tion1 (

50%

) 2.

93.

13.

6Ti

ghtn

ess2 (

50%

)1.

93.

75.

1Sy

stem

-sup

plie

rs' Q

ualit

y A

ssur

ance

3 (w

eigh

ting

15%

)Ex

celle

nt (1

.5)

Exce

llent

(1.5

)Su

ffic

ient

(4.0

)Sy

stem

man

ual (

20%

)Ye

sYe

sYe

sTr

aini

ng p

rovi

sions

(20%

)Ye

sYe

sN

oTh

ird-p

arty

sup

ervi

sion

(20%

)Ye

sYe

sYe

sEn

viro

nmen

tal i

mpa

ct (1

0%)

Yes

Yes

No

DIBt

app

rova

l (10

%)

Yes

Yes

No

Test

cer

tifica

tes

(10%

)Ye

sYe

sN

oBa

ck-tr

acin

g of

sup

ply

rout

e (1

0%)

No

No

No

Add

itio

nal i

nfor

mat

ion:

Im

pres

sion

gain

ed fr

om s

ite in

vest

igat

ions

and

test

-line

use

Prac

tical

ly-or

ient

ated

han

dlin

g an

d us

ePr

actic

ally-

orie

ntat

ed h

andl

ing

and

use

Prac

tical

ly-or

ient

ated

han

dlin

g an

d us

e Pr

essu

re p

refil

ling

of a

ll da

mag

e in

test

Suita

bilit

y fo

r ova

l con

cret

e se

ctio

n, N

D 40

0/60

04no

t ava

ilabl

eno

t ava

ilabl

eno

t pro

ven1

Suita

bilit

y fo

r use

with

ingr

ess

of g

roun

dwat

er a

nd e

xter

nal

wat

er p

ress

ure5

prov

enno

t tes

ted

not t

este

d

Avai

labl

e fo

r dia

met

ers

(info

rmat

ion

from

sup

plie

r)Ro

und

sect

ion:

ND

150

- ND

800

Ova

l sec

tion:

not

use

dRo

und

sect

ion:

ND

150

- ND

800

Ova

l sec

tion:

not

use

dRo

und

sect

ion:

ND

70 -

ND

2000

O

val s

ectio

n: u

p to

ND

900/

1350

Pote

ntia

l for

impr

ovem

ent

Redu

ce e

dges

in o

verla

p zo

neIm

prov

e flu

shin

g re

sista

nce,

im

prov

e hy

drau

lic p

rope

rties

of s

leev

eIm

prov

e te

nsio

ning

of s

leev

e an

d se

alin

g ac

tion

Rem

arks

//

Syst

em n

o lo

nger

ava

ilabl

e fo

r thi

s ap

plica

tion

54IKT

Page 7: Repair systems: Better than their reputation! - IKT · Repair systems: Better than their reputation! ... KA-TE PMO AG 2. Short liners ... Konudur Sewer Repair Kit (VP),

aBOUt iKt

Published: September 2010

Circulation: 3.000 copies

Protective charge: 19,95 e

The initial funding for setting up the institute has been provided by the Ministry for the Environment of the State of

North-Rhine Westphalia, Germany‘s largest federal state.

However, IKT is not owned by the Government. Its owners are two associations which are

again non-profit organizations of their own:

a) IKT-Association of Network Operators: Members are more than 120 cities, among them Berlin, Hamburg, Cologne and London (Thames

Water). They hold together 66.6% of IKT.

b) IKT-Association of Industry and Service: Members are more than 60 companies.

They hold together 33.3% of IKT.

You can find information on projects and services at:

www.ikt.de

IKT - Institute for Underground Infrastructure is a research, consultancy and testing institute specialized in the field of sewers. It is neutral and independent and operates on a non-profit basis. It is oriented towards practical applications and works on issues surrounding underground pipe construction. Its key focus is centred on sewage systems. IKT provides scientifically backed analysis and advice.

IKT has been established in 1994 as a spin-off from Bochum University, Germany.

IKT – Institute for Underground Infrastructure

Exterbruch 145886 GelsenkirchenGermany

phone: +49 209 178060fax: +49 209 17806-88email: [email protected]

IKT is located ca. 30 min. off Düsseldorf International Airport.