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Sampling Of Crushed Rock

chapter 4 engineering classification of rock materials,resentative samples of rock material. (b) rock mass properties rock mass properties are comprised of features gener-ally observed, measured, and documented in the field for in-place rock. discontinuities are distinct breaks or interruptions in the integrity of a rock mass that convert a rock mass into a discontinuous assemblage of blocks, plates,.classification // characterization of some rock features,intact rock strength . the uniaxial compressive strength of a rock material constitutes the highest strength limit of the rock mass of which it forms a part. it is determined in accordance with the standard laboratory procedures. for the purpose of rock mass classification, the use of the well -known point load strength index can be useful as the.chapter 4 soil and rock classification and logging,an important facet of soil and rock classification is the determination of what constitutes “rock”, as opposed to extremely weathered, partially cemented, or altered material that approaches soil in its character and engineering characteristics. extremely soft or decomposed rock that is friable (easily crumbled), and can be reduced to gravel.preparation of nts core sampies for crushed rock experiments,appropriate water. mix thorpughly and let the crushed rock settle. pour off cloudy water. d.1.2 repeat the water wash until water remains clear after settling (more than 20 washes is not unusual). d.1.3 in order to dry the washed rock sample, add a portion of the water to the crushed rock and mix..

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