A soil sample was taken from a proposed cut area in a highway construction project and sent toa soils laboratory for a compaction test, using the Standard Proctor compaction procedure.Results of the test are as follows:Maximum dry unit weight = 112.6 lb/ft3%3DOptimum moisture content = 15.5%The contractor, during construction of the soil em-bankment, achieved the following:Dry unit weight reached by field compaction = 107.1 Ib/ft3Actual water content16.0%%3DDetermine the percent compaction achieved by the contractor.

given data: In-situ dry unit weight=107.1 lb/ft3Laboratory dry unit weight=112.6 lb/ft3

A soil sample was taken from a proposed cut area in a highway construction project and sent to a soils laboratory for a compaction test, using the Standard Proctor compaction procedure. Results of the test are as follows: Maximum dry unit weight = 112.6 Ib/ft3 Optimum moisture content = 15.5% The contractor, during construction of the soil em-bankment, achieved the following: Dry unit weight reached by field compaction = 107.1 Ib/ft3 Actual water content = 16.0% Determine the percent compaction achieved by the contractor.

A soil sample was taken from a proposed cut area in a highway construction project and sent to a soils laboratory for a compaction test, using the Standard Proctor compaction procedure. Results of the test are as follows: Maximum dry unit weight = 112.6 Ib/ft3 Optimum moisture content = 15.5% The contractor, during construction of the soil em-bankment, achieved the following: Dry unit weight reached by field compaction = 107.1 Ib/ft3 Actual water content = 16.0% Determine the percent compaction achieved by the contractor.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter4: Plasticity And Structure Of Soil

Section: Chapter Questions

Problem 4.9P

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Concept explainers

Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.

Question

A soil sample was taken from a proposed cut area in a highway construction project and sent to
a soils laboratory for a compaction test, using the Standard Proctor compaction procedure.
Results of the test are as follows:
Maximum dry unit weight = 112.6 lb/ft3
%3D
Optimum moisture content = 15.5%
The contractor, during construction of the soil em-bankment, achieved the following:
Dry unit weight reached by field compaction = 107.1 Ib/ft3
Actual water content
16.0%
%3D
Determine the percent compaction achieved by the contractor.

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