Materials for Civil and Construction Engineers (4th Edition)

4th Edition

ISBN: 9780134320533

Author: Michael S. Mamlouk, John P. Zaniewski

Publisher: PEARSON

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Textbook Question

Chapter 6, Problem 6.32QP

The results of an experiment to evaluate the effects of a water reducer are shown in Table P6.32.

a. Calculate the water–cement ratio in each of the three cases.

b. Using water reducer, how can we increase the compressive strength of concrete without changing workability? Refer to the appropriate case in the table.

c. Using water reducer, how can we improve workability without changing the compressive strength? Refer to the appropriate case in the table.

d. Using water reducer, how can we reduce cost without changing workability or strength? (Assume that the cost of the small amount of water reducer added is less than the cost of cement.) Refer to the appropriate case in the table.

e. Summarize all possible effects of water reducers on concrete.

Chapter 6, Problem 6.32QP, The results of an experiment to evaluate the effects of a water reducer are shown in Table P6.32. a.

*Assume that the water content is above the saturated surface-dry (SSD) condition of the aggregate.

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Chapter 6, Problem 6.31QP

Chapter 6, Problem 6.33QP

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