Engineering behaviour of certain Himalayan rocks

Laboratory investigation has been conducted on different rock types from soft sedimentary to strong igneous to study their strength behaviour, physical properties, seismic wave velocities, electrical resistivity and Schmidt rebound numbers etc. The results have been examined to understand the nature of relationships existing between rock strengths and these characteristics. Good correlations have been found to exist between them implying potential use of such correlations for preliminary estimation of in-situ rock strengths from certain easy to conduct, rapid and non-destructive tests data.