Specific Gravity Of Cement By Density Bottle Method
Sl noObservation number123
1Weight of density bottle (w1) gm383838
2Weight of density bottle + cement (w2) gm726670
3Weight of bottle + cement + kerosene (w3) gm135131135
4Weight of bottle + water (w4) gm128129128
5Specific gravit1y (G) =
[(w2-w1)/((w4-w1)-(w3-w2))]*kerosene3.953.322.72
The Specific Gravity Of Cement Is 3.00
Standard Consistency Test Of Cement
Cement (gm)% of waterInitial readingFinal readingPenetration
value (mm)
30026412912
30028412417
30030411526
30032410635
The Normal Consistency Of Cement Is Achieved At 32% Of Water
Added By The Weight Of Cement
Setting Time Test Of Cement
Cement (gm)% of water (85% of consistency test)Time
(mins)Initial readingFinal readingPenetration (mm)
30027.2540040
30027.21040040
30027.21540535
30027.22040733
30027.225401520
30027.230402020
30027.235402515
30027.240403010
30027.24540328
30027.25040346
The Initial Setting Time Of Cement Is Found Out To Be 45
Mins
The Final Setting Time Of Cement Is Found Out To Be 340 Mins
Specific Gravity Test Of Coarse Aggregates
Sl noSample123
1Wt of container w1 (gm)677677677
2Wt of container + aggregate w2 (gm)118711881166
3Wt of container + aggregate + Water w3 (gm)188118831870
4Wt of container + water w4 (gm)156315621565
5Sp. Gravity ((w2-w1)/((w4-w1)-(w3-w2)))2.652.682.65
The Specific Gravity Of Coarse Aggregates Are Found To Be
2.66
Impact Test Of Coarse Aggregates
Sl noDetails123
1Total weight of aggregate sample filling the cylinder w1
(gm)310292
298
2Wt of aggregate passing 2.36mm sieve (gm) w2586679
3Wt of aggregate retained on 2.36mm IS sieve (gm)
w3249250212
4Aggregate Impact (w2/w1)*100 %18.7022.6026.50
The Average Impact Value = 22.6%
Shapes Test Of Coarse Aggregate Sample
Elongation Index
Passing through IS sieve (mm)Retained on IS sieve (mm)Length
Gauge (mm)Wt of fraction consisting 25 pieces (gm)Wt of fraction
retained on length gauge (gm)
20.0016.0032.422631
16.0012.5025.612648
12.5010.0020.26030
10.006.3014.71810
Sum of wt fraction430119
Elongation Index = (Weight Retained/ Weight Taken)*100 =
27.6%The Elongation Index Of Given Sample Of Aggregates Are -
27.6%
Flakiness Index
Passing through IS sieve (mm)Retained on IS sieve (mm)thickness
Gauge (mm)Wt of fraction consisting 25 pieces (gm)Wt of fraction
passing on thickness gauge (gm)
20.0016.0010.822614
16.0012.508.5512600
12.5010.006.756003
10.006.304.891805
Sum of wt fraction43022
Flakiness Index = (Weight Retained/ Weight Taken)*100 = 5.11%The
Flakiness Index Of Given Sample Of Aggregates Are 5.11%
Specific Gravity Of Fine Aggregates By Pycnometer Bottle
Method
Sl noObservation number123
1Weight of density bottle (w1) gm556550550
2Weight of density bottle + FA (w2) gm856820830
3Weight of bottle + FA + water (w3) gm126813111323
4Weight of bottle + water (w4) gm114711471147
5Specific gravity (G) =
[(w2-w1)/((w4-w1)-(w3-w2))]3.62.542.69
The Specific Gravity Of River Sand Is 2.94
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