(Received 6 July 2015; accepted 17 December 2015)
Published Online: 2016
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One of the key parameters for the performance of a pavement is uniformity of its sub-grade. In situ assessment for the uniformity of the sub-grade is commonly carried out by measuring the density of soil mass. Measurement of the density is done by cutting a core from the soil mass. According to ASTM D6951-09 (2009) the soil density may be estimated if the soil type and moisture content are known from the dynamic cone penetrometer (DCP) penetration rate. The DCP test is a soil-penetration test that is used for the measurement of sub-grade strength. In this paper, empirical correlations were developed for estimation of in situ density of the sub-grade material from DCP penetration rate and moisture content. These relations were developed using multi-linear regression analysis for different soils, namely Black Cotton Soil, Yellow Soil, and Moorum (lateritic soil). It also developed a generalized correlation for density using a power function model.
Department of Civil Engineering, MANIT, Bhopal,
Rangwala, H. M.
Assistant Professor, Department of Civil Engineering, NU, Ahemdabad,
Senior Lecturer, Department of Civil Engineering, S. V. Polytechnic College, Indore,
Goliya, H. S.
Associate Professor, Department of Civil Engineering and Applied Mechanics, SGSITS, Indore,
Stock #: GTJ20150148