Abstract

The texture, specific gravity, porosity, absorption and nature and amount of insoluble residues in various Paleozoic limestones and dolomites were determined and compared with the results obtained from abrasion and impact tests on the same samples. The experimental results indicate that an increase in porosity due to dolomitization and leaching is accompanied by a decrease in crushing strength and in resistance to abrasion. Neither the character nor the amount of insoluble residues has an appreciable effect on the strength of the rock samples tested. Aside from the engineering aspects of the problem, the results have a direct bearing on the rate of weathering, and the resistance to impact and abrasion during transportation, of elastic materials derived from such nonclastic strata.

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