lab 6 - normal consitency & time of setting

7/23/2019 Lab 6 - Normal Consitency & Time of Setting

1/21

Fall 2015

American University of Sharjah

College of Engineering

Department of Civil Engineering

Construction Materials Lab

CVE 202

Experiment # 6A Normal Consistency of Cement

Experiment # 6B Time of Setting y !icat

Nee"le

Smitte" y$

Smitte" to$ Dr% Arshi &ari"i

Date of Smission$ 'on"ay( )thNovemer( *+,-

1

Name .D No%

Christian /aymon" 0aer -16-6


2/21

Fall 2015

Tale of Contents

Table of Contents.............................................................................................ii

List of Figures..................................................................................................iii

List of Tables....................................................................................................iii

Objectives:.......................................................................................................1

Theory..............................................................................................................2

Eui!"ent # $roce%ures.................................................................................&

Eui!"ent '() an% (*+................................................................................&

$roce%ure '()+:.............................................................................................5

$roce%ure '(*+..............................................................................................,

-ata # esults '()+........................................................................................./

a"!le -ata '()+........................................................................................./

esults..........................................................................................................

-iscussion of esults.....................................................................................10

ources of Error.............................................................................................11

Conclusions )!!lications an% eco""en%ations........................................1&

Conclusion an% )!!lication.........................................................................1&

eco""en%ations......................................................................................1(

eferences.....................................................................................................15

)!!en%ices....................................................................................................1,

a"!le Calculations:..................................................................................1,

2


3/21

Fall 2015

Original

-ata333333333333333333333333333333333333

33..33333331/

2ist of &igres

'Figure 1+ *alance or scale accurate 4ithin 0.1 of the test

loa%3333333333333333&

'Figure 2+ a"!le

!litter333333333333333333333333333333333

33.333&

'Figure &+ Trays of suitable si6e 4hich can be heate% in the oven

33333333333.3..33&

'Figure (+ 7etal Thic8ness 9auge

333333333333333333333333333333333.(

'Figure 5+ 7etal Length 9auge 333333333..

333333333333333333333333.3(

'Figure ,+ * Test ieves

3333333333333333333333333333333333333

3..(

&


4/21

Fall 2015

2ist of Tales

Table 1): 7ini"u" 7ass of Test

$ro!ortion3333333333333333..33333333./

Table 1*: ieves i6es333333.

33333333333333333333333333.33..3.3./

Table 2): 7ini"u" 7ass of Test

$ro!ortion3333333333333333..33333333./

Table 2*: ieves i6es333333.

33333333333333333333333..33.3333.3./

Table &: Fla8iness n%e;333333.

3333333333333333333333.3333333..

Table (: Elongation n%e;333333.

333333333333333333..3333.333333icat nee%le to !enetrate 25 "" into the ce"ent !aste. The secon% setting

ti"e is the nal setting time 4hich is %ene% as the ela!se% ti"e 4here the

&


8/21

Fall 2015

initial contact of 4ater an% ce"ent reuire% for the >icat nee%le to have no

!enetration in the ce"ent !aste. s

E;ipment < =roce"res

E;ipment 46A < 6B

1. >icat )!!aratus. [!igure "]

2. 7echanical 7i;er. [!igure 2]

&. *alances or scales that have an accuracy of 0.1 g". [!igure #]

(. 9lass gra%uates. [!igure $]

!igure "

!igure 2

(


9/21

Fall 2015

!igure # !igure $

=roce"re 46A$

1. -ry the "i;er !a%%le an% bo4l of the "echanical "i;er before co""encing

the !roce%ure.

2. 7easure a uantity of 4ater using the gra%uate% glass cylin%er an% !lace it in

the bo4l.

&. )%% ,50 gra"s of ce"ent an% 4ait &0 secon%s for 4ater absor!tion

(. tart the "i;er an% "i; at lo4 s!ee% 1(0 B 5 r!"G for &0 secon%s an% then

sto! the "i;er for 15 secon%s an% scra!e %o4n any !aste that "ay have

collecte% on the si%es of the bo4l.

5


10/21

Fall 2015

5. tart the "i;er again at "e%iu" s!ee% 25 B 10 r!"G an% leave it for 1

"inute.

,. Huic8ly for"ing the ce"ent !aste in a ball sha!e 4ith glove% han%s. Then

tossing si; ti"es through a free !ath of about 150 "" for" one han% to

another so as to !ro%uce a nearly s!herical "ass that "ay be easily inserte%

into the >icat ring 4ith a "ini"u" a"ount of a%%itional "ani!ulation.

/. $ressing the ball resting in the !al" of one han% into the larger en% of the

conical ring hel% in the other han%.

. $lacing the ring on its larger en% on the base !late an% slicing o@ the e;cess

!aste at the s"aller en% by a single obliue stro8e of a shar!=e%ge% tro4el.

icat !enetration versus the a"ount of 4ater to %eter"ine the

nor"al consistency.

12.Calculating the nor"al consistency by the follo4ing for"ula.

=roce"re 46B

,


11/21

Fall 2015

1. 7i; ,50 g of ce"ent 4ith the !ercentage of "i;ing 4ater reuire% for

nor"al consistency as %eter"ine% for" the nor"al consistency test

follo4ing the sa"e "i;ing !roce%ure.2. $lace the s!eci"en conne% in the conical ring in the "oist roo" for &0

"inutes.&. Center the !aste conne% in the ring un%er the >icat a!!aratus nee%le

an% a%just the a!!aratus to 6ero "ar8 4hen the nee%le is just touching

the surface of the !aste.(. elease the nee%le for 20 secon%s an% recor% the !enetration rea%ing

fro" the a!!aratus.5. -eter"ine the !enetration at every 15 "inutes thereafter.,. $lot the !enetration versus ti"e an% %eter"ine the initial an% nal setting

ti"es of the ce"ent use%.

Data < /eslts

/eslts 46A

)G Aor"al Consistency esults

TrialI Dater gra"G $enetration ""G1 1,2 1

lab 6 - normal consitency & time of setting

Documents