A standard Proctor test was conducted on a silty clay soil collected from a proposed construction site. The results are shown in the following table. Moisture content (%) Trial no. Mass of moist soil in the mold (g) 1 1689 12.7 2 1752 15.0 1800 17.8 4 1845 20.6 5 1844 23.8 a. Determine the maximum dry density (kg/m³) of compaction and the op- timum moisture content. Given: Mold volume = 943.3 cm³. b. If specification calls for 99% relative compaction in the field, what w be the field dry density and the range of acceptable moisture content?

Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter5: Soil Compaction
Section: Chapter Questions
Problem 5.7P
Question
A standard Proctor test was conducted on a silty clay soil collected from a
proposed construction site. The results are shown in the following table.
Moisture
content (%)
Trial no.
Mass of moist soil
in the mold (g)
1
1689
12.7
2
1752
15.0
1800
17.8
4
1845
20.6
5
1844
23.8
a. Determine the maximum dry density (kg/m³) of compaction and the op-
timum moisture content. Given: Mold volume = 943.3 cm³.
b. If specification calls for 99% relative compaction in the field, what w
be the field dry density and the range of acceptable moisture content?
Transcribed Image Text:A standard Proctor test was conducted on a silty clay soil collected from a proposed construction site. The results are shown in the following table. Moisture content (%) Trial no. Mass of moist soil in the mold (g) 1 1689 12.7 2 1752 15.0 1800 17.8 4 1845 20.6 5 1844 23.8 a. Determine the maximum dry density (kg/m³) of compaction and the op- timum moisture content. Given: Mold volume = 943.3 cm³. b. If specification calls for 99% relative compaction in the field, what w be the field dry density and the range of acceptable moisture content?
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