Question

Why do geotechnical engineers specify greater compaction effort than the standard proctor test?

Answer #1

Geotechnical engineers specify greater compaction effort than the standard test because in standard test the number of layers being used to fill the mould is three with 25 number of blows in each layer.

But if compaction effort is greater than standard test then for this number of layers have to be increased this will lead to increased number of blows in each layer like in modified prctor test than standard test.

When compaction effort is increased then compaction achieved will be more. Dry density obtained will be more and corresponding optimum moisture content will be less as compared to standard test.

So when compaction effort is increased then degree of compaction achieved will be greater also that is why geotechnical engineers specify greater compaction effort than standard pest.

PLEASE RATE THE ANSWER.

what is standard proctor compaction test and why is it important
(the purpose of the test) please give detailed explanation in your
own words. Thank you!

What are the differences between the standard and modified
proctor compaction tests?
What is the major outcome of the compaction test? Be
specific
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always true?

1. Compute the compactive
effort or compaction energy for a soil sample compacted in a mold
with a volume of 1/30 cubic foot which uses 4 layers to place soil
in the mold and compacts each layer using a hammer with a weight of
10 lbs that is dropped 12 inches and uses 20 blows per layer.
2. Using the result from
question 1 compare the compaction energy to the Modified Proctor
compaction test and the Standard Proctor compaction test?...

Compute the compactive effort or compaction energy for a soil
sample compacted in a mold with a volume of 1/30 cubic foot which
uses 4 layers to place soil in the mold and compacts each layer
using a hammer with a weight of 10 lbs that is dropped 12 inches
and uses 20 blows per layer. (2 pts)
2. Using the result from question 1 compare the compaction
energy to the Modified Proctor compaction test and the Standard
Proctor compaction...

Compute the compactive effort or compaction energy for a soil
sample compacted in a mold with a volume of 1/30 cubic foot which
uses 4 layers to place soil in the mold and compacts each layer
using a hammer with a weight of 10 lbs that is dropped 12 inches
and uses 20 blows per layer. (2 pts) 2. Using the result from
question 1 compare the compaction energy to the Modified Proctor
compaction test and the Standard Proctor compaction...

1. Compute the compactive effort or compaction energy for a soil
sample compacted in a mold with a volume of 1/30 cubic foot which
uses 4 layers to place soil in the mold and compacts each layer
using a hammer with a weight of 10 lbs that is dropped 12 inches
and uses 20 blows per layer. (2 pts) 2. Using the result from
question 1 compare the compaction energy to the Modified Proctor
compaction test and the Standard Proctor...

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Sample No.
1
2
3
4
5
w (%)
7.5
9.8
8.6
10.3
11.12
11.9
13.3
14.11
16.7
15.99
γ...

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Step 1: Specify the Null Hypothesis. ...
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