The laboratory test data for a standard Proctor test are given below. Find the maximum dry unit density and optimum moisture content. Mass of the wet soil in theVolume of Proctor Mold (cm³)Moisture Content (w%)mold (kg)943.31.705.2943.31.857.3943.31.909.5943.31.9912.2943.32.0515.5943.31.9617.0943.31.9220.0

Standard proctor test Moist unit weight = wet soil / volume Dry unit weight = moist unit weight /…

Answered: 943.3 1.70 943.3 1.85 943.3 1.90 943.3…

Engineering

Civil Engineering

943.3 1.70 943.3 1.85 943.3 1.90 943.3 1.99 943.3 2.05 943.3 1.96 943.3 1.92

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Soil Deposits-origin, Grain-size, And Shape

Section: Chapter Questions

Problem 2.4P: For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60 = 0.41 mm Calculate the uniformity coefficient...

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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

The laboratory test data for a standard Proctor test are given below. Find the maximum dry unit
density and optimum moisture content.

Mass of the wet soil in the
Volume of Proctor Mold (cm³)
Moisture Content (w%)
mold (kg)
943.3
1.70
5.2
943.3
1.85
7.3
943.3
1.90
9.5
943.3
1.99
12.2
943.3
2.05
15.5
943.3
1.96
17.0
943.3
1.92
20.0

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