论文部分内容阅读
集料压碎值用于衡量石料在逐渐增加的荷载下抵抗压碎的能力,是衡量石料力学性质的指标,它是按规定试验方法测得的被压碎碎屑的重量与试样重量之比,以百分率表示。由于习惯的原因,该指标在我国特别重视。检测规范有国标《建设用卵石、碎石》GB/T 14685-2011和行标《公路工程集料试验规程》JTG E42-2005,两者适用性不同但又有一定的联系,在实际检测工作中经常被乱用、混用。本文根据工程实例,对国标和行标的压碎值进行比较和分析,以解决今后检测工作中遇到类似混用规范的问题。
Aggregate crush value is used to measure the ability of stone to resist crushing under gradually increasing load. It is an index to measure the mechanical properties of stone. It is the weight of crushed crumb and the weight of sample measured according to the stipulated test method Ratio, expressed as a percentage. Due to habitual reasons, this indicator places special emphasis in our country. Testing standards are the national standard “construction of pebbles, rubble” GB / T 14685-2011 and line standard “road aggregate test procedures” JTG E42-2005, both with different but have some relevance, in the actual testing Often used indiscriminately, mixed. According to the engineering example, this paper compares and analyzes the crushed value of national standard and row standard to solve the problem of similar mixed specification in future testing.