ISSN (online) : 2395 - 7549

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Laboratory Study of Strong, Moderate and Weak Sandstones


Sachin Gupta , Central Soil and Materials Research Station; Dhirendra Kumar, Central Soil and Materials Research Station; Arup Bandyopadhyay, Central Soil and Materials Research Station; S. L. Gupta, Central Soil and Materials Research Station


Correlation, Laboratory, Modulus, Sandstone, UCS, Wave Velocity


Sandstones from seven different hydroelectric projects have been assessed to compare their water-related properties and engineering parameters and the comprehensive analysis has been presented. The study has been done by categorizing the sandstones in to three categories i.e. weak, moderate & strong sandstones. The study leads to four broad inferences: (1), there could be very large variation between two sandstones; e.g., here, sandstone S2, S4 & S5, vis-à-vis other two strong sandstones, is superior in all respects. (2), the four weak sandstones differ in respect of some – not all – properties and parameters. (3), none of the four weak sandstones is better than the other two in respect of all properties and parameters. (4), moderate sandstone shows higher values of shear strength parameters in comparison to all the sandstones (including stronger sandstones also) except S3 strong sandstone. In respect of individual properties, the grain density of all sandstones is similar, though their bulk densities, apparent porosity and water content show great variation. The weak, moderate and strong sandstones show qualitative difference in their uniaxial compressive strength and wave velocity (compression and shear, both); and the two are directly proportional. The study clearly demonstrates that there is no one-to-one correspondence between any two properties and parameters, but there is a diffused and/ or qualitative relationship between different sandstones, or certain properties and parameters of a particular variant.

Other Details:

Manuscript Id :J4RV4I1012
Published in :Volume : 4, Issue : 1
Publication Date: 01/04/2018
Page(s): 30-37
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