A Study on Suitability of Crusher Dust Stabilized Red Earth and Gravel as Subgrade and Sub Base Material

International Journal of Civil Engineering

© 2018 by SSRG - IJCE Journal

Volume 5 Issue 4

Year of Publication : 2018

Authors : Prof. P.V.V.Satyanarayana, Sumanjali Parimi, Swathipriya.P, Jahara. Sk

10.14445/23488352/IJCE-V5I4P103

How to Cite?

Prof. P.V.V.Satyanarayana, Sumanjali Parimi, Swathipriya.P, Jahara. Sk, "A Study on Suitability of Crusher Dust Stabilized Red Earth and Gravel as Subgrade and Sub Base Material," SSRG International Journal of Civil Engineering, vol. 5,  no. 4, pp. 9-15, 2018. Crossref, https://doi.org/10.14445/23488352/IJCE-V5I4P103

Abstract:

India is a developing country having wide road network which require huge quantity of materials. The materials used in the pavement construction should have good quality and durability characteristics. Usually locally available material like natural soils, gravels, sands, and crushed stone can be preferred for road component material. Sometimes due to inherent poor qualities these material offers high deformations lead to failure of the pavements in various forms. In order to use locally available materials for laying of pavements, these are to be stabilized with available material, industrial wastes or additive which will improve the performance and durability which will help in lesser construction and maintenance cost. In the present study locally available red soil and gravel soils were stabilized with the addition of crusher dust and verified their plasticity and strength characteristics. From the results obtained, the red earth can be stabilized with optimum dosage of 20% and gravel soil with 25% crusher dust. the stabilized mixes have low plasticity and high strength characteristics. These two soils satisfies their characteristics in terms of plasticity index (Ip<6) and CBR >10 for sub grade and greater than 30 for sub base in accordance with MORTH specifications. In addition to this crusher dust stabilized, red soil and gravel as sub grade and sub base, crushed stone with crusher dust as base coarse on CBR model yields good ultimate resistance value(550 – 600 kPa) compared to their natural materials. Hence from the test results, the crusher dust stabilized Red earth and gravel can be used as pavement construction materials.

Keywords:

Red earth, Gravel, Crusher dust, Plasticity characteristics, Strength characteristics

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