25. Refer to Figure 7.16. What would 90% of the maxi-mum dry density equal for this curve? If the specifications require 95% of standard Proctor densityand within +2% of the optimum water content, whatrange of values would be acceptable for this test? Dry unit weight (y) (lb/ft³)1201151101055.0Maximumdry density120.513%Optimumwatercontent10.0Water content (w) (%)15.00.400.500.60Figure 7.16 Standard Proctor compaction curve.Note: 62.4 lb/ft³ = 1 Mg/m³.Void ratio (e)

Standard proctor test is used to establish a relationship between dry density and moisture content…

. Refer to Figure 7.16. What would 90% of the maxi- mum dry density equal for this curve? If the speci fications require 95% of standard Proctor density and within +2% of the optimum water content, what range of values would be acceptable for this test?

. Refer to Figure 7.16. What would 90% of the maxi- mum dry density equal for this curve? If the speci fications require 95% of standard Proctor density and within +2% of the optimum water content, what range of values would be acceptable for this test?

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

25. Refer to Figure 7.16. What would 90% of the maxi-
mum dry density equal for this curve? If the speci
fications require 95% of standard Proctor density
and within +2% of the optimum water content, what
range of values would be acceptable for this test?

Dry unit weight (y) (lb/ft³)
120
115
110
105
5.0
Maximum
dry density
120.5
13%
Optimum
water
content
10.0
Water content (w) (%)
15.0
0.40
0.50
0.60
Figure 7.16 Standard Proctor compaction curve.
Note: 62.4 lb/ft³ = 1 Mg/m³.
Void ratio (e)

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