masterflex pvc waterstop

7/29/2019 Masterflex PVC Waterstop

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MASTERFLEXTM

PVC WATERSTOP

BASF Construction Chemicals offices in ASEAN

SingaporeTel :+65-6861-6766Fax :+65-6861-3186

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PhilippinesTel : +63-2-632-9995Fax : +63-2-632-9996

Centrally and externally placed PVC waterstop

DESCRIPTION

Masterflex PVC Waterstop is manufactured with highgrade polyvinyl chloride. It is designed for use invertical and horizontal joints in concrete slabs andperipheral walls of structures and conduits conveying or containing liquid and of buried walls of pumpingstations. Masterflex PVC Waterstop is composed of two sections:

Moving and anchoring part

The surface of the anchoring parts of the MasterflexPVC Waterstop is furnished with ribs and naps. Thisprofile has two important functions to fulfil:

To increase the anchoring power of the waterstop in theconcrete

To lengthen the way of penetration around the cast-inwaterstop

Even under high stresses, the anchoring parts of theembedded waterstop will not be stretched and couldanchor to the concrete. This tight bonding will preventthe water to flow around the separated concrete andwaterstop. The movement part of the waterstop alonewill absorb the differences in width of the joint throughcontraction or constructural movements. MasterflexPVC Waterstop is resistant to attacks from ground andleakage water containing natural alkaline, acids andsalts They are also non-rotting and resistant to theeffects from short time exposure to oils and greases.When exposed permanently to oils and greases themost suitable raw materials should be specified.

Masterflex PVC Waterstop is made in accordance tothe corps. of Engineers Specification CRD C-570, C-572, C-573 and ASTM D-412, D-638, D-746, D-792, D-2240. It is also approved by WRc for suitable use withpotable water.

RECOMMENDED FOR

Water retaining

Reservoirs, water towers and sewage tanks

Dams, culverts, canals and spillways

Swimming pools

Bunded areas surrounding liquid retaining tanks

Water excluding

Basements and underground car parks

Tunnels and subways

Abutments and retaining walls

Roof decks and podium areas

FEATURES AND BENEFITS

Range of profiles

Fully continuous bulbed network

Simple on site jointing

TYPICAL PERFORMANCE DATATensile strength (<120 kgf/cm

2)

(CRD-C573): 165 kgf/cm

2

Elongation (<2501%)(CRD-C573)

: 380

Stiffness in flexure(CRD-571)

: 55 kg/cm2

Ozone resistance (ASTM D1149) : No cracks

Water absorption 50°C for 48 hoursIncrease in weight (ASTM D570)

: 0.37%

Effect of alkalies

Change in weight : +0.07

Change in hardness : +0.2

PROPERTIES

Specific gravity (<1.4) (ASTM D792) : 1.29

Shore A hardness(ASTM D2240)

: 80

Masterflex PVC Waterstop profiles



MASTERFLEXTM

PVC WATERSTOP

Dimension (mm)Type

W T D CB H

DD-4 102 5 13 - -

DD-6 152 5 13 - -

DD-8 203 5 13 - -

DD-9 230 5 13 - -

DD-10 255 5 13 - -

DD-12 305 5 13 - -

SDD-6 152 9.5 19 - -

SDD-8 203 9.5 19 - -

SDD-9 230 9.5 25 - -

SDD-12 305 9.5 25 - -

Dimension (mm)Type

W T D CB H

CD-4 102 5 13 20 10CD-6 152 5 13 18 8

CD-8 203 5 13 18 8

CD-9 230 5 17 21 11

CD-10 255 5 19 23 13

CD-12 305 6 19 25 13

SCD-6 152 5 19 30 15

SCD-8 203 9.5 19 30 15

SCD-9 230 9.5 25 38 19

Dimension (mm)Type

W T D CB H

CR-6 152 5 13 30 10

CR-8 203 5 13 30 20

CR-9 230 5 13 30 20

CR-12 305 5 13 30 20

SCR-10 250 10 17 - -

Dimension (mm)

Type W T D CB H

WP-6 150 3 15 - -

WP-8 200 3 18 - -

WP-10 250 3 18 - -

Dimension (mm)Type

W T D CB H

RT-7 195 3 15 - -

RR-8 203 5 13 - -

RR-9 230 5 13 - -

RR-10 250 5 13 - -

RR-12 305 5 13 - -

SRR-9 230 9.5 15 - -



MASTERFLEXTM

PVC WATERSTOP

APPLICATION

Selection of waterstopCentrally placed or surface mounted types can beapplied when the waterstop has the function of preventing water penetration from outside to inside(ground water, rain water, etc.)

For structures where water is intended to be retaininside for long periods such as swimming pools,sewerage plants, tunnels, channels etc., centrallyplaced types of waterstops should be fixed on the sidewhere the water pressure is existing or expected.Therefore, surface mounted waterstops are not advisedin the above mentioned situations as the risk of

mechanical damage for the unprotected surface type isconsiderably increased.

Steel shutters make it difficult to fix the waterstop ontothem; therefore centrally placed types are preferred insuch case.

Structures with tight and complicated reinforcementsmake it often impossible or it is too time consuming toinstall centrally placed waterstops; in such cases,surface mounted ones are preferred and advised.

Where high water pressure is to be expected, centrallyplaced types are preferred. This is because thepassage for the eventually penetrating water to runaround the waterstop is longer for the centrally placedones than for the surface mounted types, providing that

they have the same width as illustrated in the sketchesshown. Centre bulb types must be used for expansion joints and all other joints where the reinforcement barsdo not pass through the joint between the slabs.

Dumb-bell types are sufficient for construction jointswhere no differential movement is permitted and theplenar movement is only by concrete contraction.

Selection of size of waterstopExperience has proved that the application of a fewsimple rules will ensure a satisfactory choice:

The overall width of the waterstop should be equal or little less than the thickness of the concrete slab intowhich it is placed.

The width of the waterstop should be at least six timesthe size of the largest used aggregate.

The waterstop should be positioned in the centre of theslab.

Fixing and installationThe sealing functions of a waterstop however, can onlybe achieved properly, when all necessary measures are

taken into consideration for the installation. Besidestight weldings, it is essential to fasten the waterstopproperly to the reinforcement rods or to the formworkshutters, so that the profile cannot be moved out of position during placement of fresh concrete. Fullattention must be paid also while concrete is beingpoured so that no air pockets are created; the profilemust be embedded completely in the concrete,therefore it is important to prevent leaks along the faceof the shutters and the waterstop. To enable thewaterstop be wired securely to the reinforcement barsto other suitable points.



MASTERFLEXTM

PVC WATERSTOP

PRECAUTIONS

For Health, Safety and Environmental

Recommendations, please consult and follow all

instructions on the product Material Safety Data Sheet.

1-1-1-1006

STATEMENT OF

RESPONSIBILITY

The technical information and application advice given in this BASF Construction Chemicals publication arebased on the present state of our best scientific and practical knowledge. As the information herein is of ageneral nature, no assumption can be made as to a product's suitability for a particular use or application andno warranty as to its accuracy, reliability or completeness either expressed or implied is given other thanthose required by law. The user is responsible for checking the suitability of products for their intended use.

NOTEField service where provided does not constitute supervisory responsibility. Suggestions made by BASFConstruction Chemicals either orally or in writing may be followed, modified or rejected by the owner,engineer or contractor since they, and not BASF Construction Chemicals, are responsible for carrying outprocedures appropriate to a specific application.

masterflex pvc waterstop

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