Answered: TABLE P6.22 Cubes Made with Cubes Made…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

In order to evaluate the suitability of nonpotable water available at the job site
for mixing concrete, six standard mortar cubes were made using that water
and six others using potable water. The cubes were tested for compressive
strength after 7 days of curing and produced the loads to failure (in pounds)
shown in Table P6.22.
a. Based on these results only, would you accept that water for mixing
concrete according to ASTM C94?
b. According to ASTM C94, are there other tests to be performed to evaluate
the suitability of that water? Discuss briefly.

TABLE P6.22
Cubes Made with
Cubes Made with
Nonpotable Water
Potable Water
14,530
16,530
15,820
16,820
14,160
17,920
16,100
15,690
15,870
18,820
14,380
16,720

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