SUMMARY OF CHANGES

标准状态

基本信息

标准简介

c9/c29M - 16 SUMMARY OF CHANGESachieved in this test method is unknown. Further, aggregates inhauling units and stockpiles usually contain absorbed andsurface moisture (the latter affecting bulking). while this testmethod determines the bulk density on a dry basis.4.3 A procedure is included for computing the pcrcentage ofvoids between the aggregate particles based on the bulk densitydctermined by this test method.5. Apparatus5.1 Balance—A balance or scale accurate within 0.1 % ofthe test load at any point within the range of use, graduated toat least 0.05 kg [0.I lb]. The range of use shall be consideredto extend from the mass of the measure empty to the mass ofthe measure plus its contents at 1920 kg/m3 [120 lb/n'].5.2 Tamping Rod—A round,straight steel rod,16 mm[5Wsin.] in diameter and approximately 600 mm [24 in. ] in length,having the tamping end, or both ends, rounded to a hemispheri-cal tip, the diameler of which is 16 mm [5/% in.].5.3 Measure——A cylindrical metal measure, preferably pro-vided with handles. It shall be watertight，with the top andbottom true and even. and sufficiently rigid to retain its formunder rough usage.The measure shall have a height approxi-mately

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