混凝土用集料机械和物理性能试验方法第4部分:10%细料值的测定

[中文适用范围]： 本文件给出了测定骨料百分之十细粉值（TFV）的测试方法。 该方法给出了在逐渐施加的压缩载荷下骨料破碎阻力的相对测量值。 它涵盖两套程序： ——第一套程序适用于在干燥条件下测试的集料； - 第二个程序适用于在浸泡条件下测试的骨料。 注1：一般情况下，试验可在干燥条件下进行。 但如有必要，负责工程师可以选择在浸泡条件下进行测试。 该方法适用于不同强度的骨料，涵盖弱骨料和强骨料。 它适用于标准骨料，即通过14.0毫米测试筛并保留在10.0毫米测试筛上。 对于该测试所采用的骨料尺寸分数也可以存在国家标准。 如果无法获得该确定的尺寸分数，则可以对附录 A 中给出的其他尺寸进行测试。 由于缺乏可用数据，无法对非标准尺寸与标准尺寸骨料的结果进行比较。 注 2：相应的国家标准允许分级划分有微小变化。 [外文原描述]： This document gives the test method for determination of ten percent fines value (TFV) of aggregates. This method gives a relative measure of the resistance of the aggregate crushing under the gradually applied compressive load. It covers two sets of procedures: — the first procedure is applicable for aggregates tested in dry condition; and — the second procedure is applicable for aggregates tested in a soaked condition. NOTE 1 Generally, the test can be done under dry conditions. However, the engineer in charge can choose to test them in soaked condition, if necessary. The method is applicable to aggregates of different strengths covering both weak and strong aggregates. It is applicable to standards aggregates, i.e. passing a 14,0 mm test sieve and retained on 10,0 mm test sieve. National standards can also exist for the aggregate size fraction to be taken for this test. In case this definite size fraction is not available, the test can be made on other sizes, given in Annex A. The comparison of results of non-standard sizes with standard size aggregates is not possible due to lack of available data. NOTE 2 Minor variations in grading divisions can be allowed in respective national standards.