A STUDY ON EFFECTS OF SATURATION ON SOIL SUBGRADE STRENGTH: A REVIEW

Abid Khursheed , Er. Suhaib Firdous , Er. AIMAN

Sub grade soil, Moisture content , Compaction, Degree of saturation, CBR

The design of the pavement layers to be laid over sub grade soil starts off with the estimation of sub grade strength and the volume of traffic to be carried. Design of the various pavement layers are very much dependent on the strength of the sub grade soil over which they are going to be laid. Sub grade strength is mostly expressed in terms of CBR (California Bearing Ratio). Weaker sub grade essentially requires thicker layers whereas stronger sub grade goes well with thinner pavement layers. The sub grade is always subjected to change in saturation level due to precipitation, capillary action, flood or abrupt rise or subsidal of water table. Change in moisture level in sub grade causes change in the sub grade strength. And it becomes quite essential for an engineer to understand the exact nature of dependence of sub grade strength on moisture variation. An understanding of the dependence of the CBR strength of local soils on water content will contribute towards better design and maintenance practices. Normally CBR test is an easy and well adopted method conducted on soil samples to measure the strength of sub grade. However, many other tests are also considered for assessing the sub grade strength.

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"A STUDY ON EFFECTS OF SATURATION ON SOIL SUBGRADE STRENGTH: A REVIEW", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.3, Issue 5, page no.573 - 576, May-2018, Available :https://ijsdr.org/papers/IJSDR1805086.pdf

Volume 3 Issue 5, May-2018

Pages : 573 - 576

Paper Reg. ID: IJSDR_180319

Published Paper Id: IJSDR1805086

Downloads: 000347250

Research Area: Engineering

Country: -, -, --

Published Paper PDF: https://ijsdr.org/papers/IJSDR1805086

Published Paper URL: https://ijsdr.org/viewpaperforall?paper=IJSDR1805086

ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016

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