Correlation Study Between Point Load Test And Uniaxial Compressive Strength and Tensile Strength of Some Sedimentary Rocks In Mosul City

Abstract

The point load test is used as a quick and inexpensive means of obtaining rockstrength indexes when logging core samples in either a field or laboratory setting. Inorder to estimate the Uniaxial compressive strength, indirect tensile strength(Brazilian and 4-point bending)of the rocks, index to strength conversion factors areused to involve three types of the most popular sedimentary rocks in Mosul city,which are limestone, sandstone and gypsum in both dry and wet conditions. Theresults showed that a conversion factors,(14.55,15.9) can be used to estimatecompressive strength for both limestone and gypsum rocks in dry and wet conditionsrespectively. The study also found that conversion factors,(1.4,2.6) are applied in drycondition for the three rocks in Brazilian and Bending tests.