The modified Proctor test (ASTM D 698, method C) was performed fora soil with G, = 2.70, and the results are as follows:Moist Weightin Mold, gfWaterContent, %6.532509.3382612.6429314.9436217.2403518.63685(a) Plot the Ya versus w relation.(b) Determine Ya.max and wopt•(c) Calculate S and e at the maximum dry unit weight point.(d) What is Y at w.(e) What is the range of water content if the relative compaction (R.C.)is required to be 95% of the modified Proctor Ya.max?pt?opr?

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The modified Proctor test (ASTM D 698, method C) was performed for a soil with G, = 2.70, and the results are as follows: %3D

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 4.3P

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Concept explainers

Soil classification and characteristics

Soil classification is a method of categorizing soil based on its properties, types, and uses. The motive of soil classification is to arrange various types of soils and divide them into groups for various engineering and agricultural purposes. Soil classification is carried out by various agencies as per their purposes. From an engineering perspective, soil classification is done to find out the suitability of soil for various construction purposes like the construction of dams, foundations, highways, infrastructures, and so on. For engineering purposes, the soil is classified by the following systems:

Question

100%

The modified Proctor test (ASTM D 698, method C) was performed for
a soil with G, = 2.70, and the results are as follows:
Moist Weight
in Mold, gf
Water
Content, %
6.5
3250
9.3
3826
12.6
4293
14.9
4362
17.2
4035
18.6
3685
(a) Plot the Ya versus w relation.
(b) Determine Ya.max and wopt•
(c) Calculate S and e at the maximum dry unit weight point.
(d) What is Y at w.
(e) What is the range of water content if the relative compaction (R.C.)
is required to be 95% of the modified Proctor Ya.max?
pt?
opr?

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