Question
Download Solution PDFProctor compaction test is made to determine moisture content at which soil will be compacted to obtain ________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept-
For compaction of any particular soil in the field, the engineer can vary water content, amount of compaction, type of compaction.
In 1933, proctor showed that there existed a definite relationship between the soil water content and degree of dry destiny to which a soil might be compacted, and that for a specific amount of compaction energy applied on the soil there was a water content termed as optimum water content at which a particular soil attained maximum dry density .the compaction characteristics are first determined in the laboratory by various compaction tests.
These tests are based on any one of the following methods or types of compaction: dynamic or impact, kneading, static and vibration.
Some of the usual compaction tests used in the laboratory to determine water density relationships of soils are: standard and modified proctor tests, Harvard miniature compaction test, about compaction test, and jodhpur-mini compactor test. The main aim of these tests is to arrive at a standard which may serve as a guide and a basis of comparison for field compaction.
Different types of compaction test-
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Standard Proctor test |
Modified Proctor test |
|
No. of layers-3 Weight of hammer-2.495 kg Height of fall-304.8 mm Volume of mould-944 cc |
No. of layers-5 Weight of hammer-4.54 kg Height of fall-457.2 mm Volume of mould-944 cc |
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Light Compaction test |
Heavy compaction test |
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No. of layers-3 Weight of hammer-2.6 kg Height of fall-310 mm Volume of mould-1000 cc |
No. of layers-5 Weight of hammer-4.9 kg Height of fall-450 mm Volume of mould-1000 cc |
Last updated on May 28, 2025
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