BS EN 12697-44-2010 沥青混合料.热拌沥青混合料的试验方法.半圆弯曲试验方法的裂纹扩展

标准号：BS EN 12697-44-2010
中文标准名称：沥青混合料.热拌沥青混合料的试验方法.半圆弯曲试验方法的裂纹扩展
英文标准名称：Bituminous mixtures. Test methods for hot mix asphalt. Crack propagation by semi-circular bending test
标准类型：E43
发布日期：2010/10/31 12:00:00
实施日期：2010/10/31 12:00:00
中国标准分类号：E43
国际标准分类号：93.080.20
适用范围：This European Standard specifies the Semi-Circular Bending (SCB) test method to determine the tensilestrength or fracture toughness of an asphalt mixture for the assessment of the potential for crack propagation.The results of the test can be used to calculate:? the maximum load that the material containing a notch (crack) can resist before failure;? when the presence of a notch is critical.It should be noted that the test only describes a method to determine the resistance to crack propagation of anasphalt mixture. The crack propagation phase describes the second part of failure mechanism during dynamicloading. The first phase, which is the crack initiation phase, is mainly covered by the fatigue test(EN 12697-24).