The results of a laboratory experiment to evaluate the effects of a plasticizer are shown. a. Calculate the water/cement in each of the three cases. b. Choose an appropriate case that - by using water reducer, how can we increase the compressive strength of concrete without changing workability? (Refer to the appropriate case in the table) c. Choose an appropriate case that - by using a water reducer, how can we improve workability without changing the compressive strength? (Refer to the appropriate case in the table) d. Choose an appropriate case that - by using water reducer, how can we reduce cost without changing workability or strength? (Refer to the appropriate case in the table)
The results of a laboratory experiment to evaluate the effects of a plasticizer are shown. a. Calculate the water/cement in each of the three cases. b. Choose an appropriate case that - by using water reducer, how can we increase the compressive strength of concrete without changing workability? (Refer to the appropriate case in the table) c. Choose an appropriate case that - by using a water reducer, how can we improve workability without changing the compressive strength? (Refer to the appropriate case in the table) d. Choose an appropriate case that - by using water reducer, how can we reduce cost without changing workability or strength? (Refer to the appropriate case in the table)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
The results of a laboratory experiment to evaluate the effects of a plasticizer are shown.
a. Calculate the water/cement in each of the three cases.
b. Choose an appropriate case that - by using water reducer, how can we increase the compressive strength of concrete without changing workability? (Refer to the appropriate case in the table)
c. Choose an appropriate case that - by using a water reducer, how can we improve workability without changing
the compressive strength? (Refer to the appropriate case in the table)
d. Choose an appropriate case that - by using water reducer, how can we reduce cost without changing workability or strength? (Refer to the appropriate case in the table)
Transcribed Image Text:With Water Reducer
Without Water
Reducer
Case 1
Case 2
Case 3
Cement Content, kg/m³
850
850
850
765
Water Content, kg/m³
465
465
370
419
Slump, mm
Compressive Strength, MPa
50
100
50
50
37.8
38.0
46
37.9
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