ISSN: 2349-5162 | Impact Factor: 5.87

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eISSN: 2349-5162

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Development Of Correlation Between Different Engineering Properties Of Sub Grade Soil


Road connectivity is essential for socio-economic growth of the country. Proper construction and choice of suitable material for embankment are the main criterion to reduce the early distresses in the pavement structure. In flexible pavements, sub-grade is considered to be an ideal layer to resist wheel load and its California bearing ratio (CBR) value is considered as the strength measuring parameter. Conducting CBR test is an expensive and time-consuming test, moreover, it is very difficult to mould the sample at a desired in-situ density in the laboratory. In the present study, an attempt has been made to establish a relationship between different engineering properties of soil subgrade like DCPT value, CBR and Unconfined compressive strength (UCS). The different types of soil sample have been collected from different region of Rajkot like Lodhika, Mavdi, Hadala, Ring Road 1,Ring Road 2.Their index properties and subgrade strength parameters like California bearing ratio (CBR) (soaked & unsoaked), dynamic cone penetration test (DCPT) & Unconfined compressive strength (UCS) have been determined. The correlations between different engineering properties of subgrade soil like CBR, DCPT& UCS have been developed.The developed relationships have been easy to get information about the strength of subgrade over the length of the road. Use of these correlations will prove cost effective and reduce considerable time.

Key Words

California bearing ratio, Dynamic Cone Penetration, unconfined Compressive strength, Subgrade Soil

Cite This Article

"Development Of Correlation Between Different Engineering Properties Of Sub Grade Soil", International Journal of Emerging Technologies and Innovative Research (, ISSN:2349-5162, Vol.4, Issue 5, page no.177-180, May-2017, Available :

Publication Details

Published Paper ID: JETIR1705038
Registration ID: 170339
Published In: Volume 4 | Issue 5 | Year May-2017
DOI (Digital Object Identifier):
Page No: 177-180
ISSN Number: 2349-5162

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