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Standard Test Method for Ball Drop on Controlled Low Strength Material (CLSM) to Determine Suitability for Load Application 控制低强度材料(CLSM)中球滴的标准测试方法 以确定负载应用的适用性
发布日期: 2024-10-15
1.1 该试验方法解释了通过将金属重物反复落在原位材料上来确定受控低强度材料(CLSM)承受载荷的能力。 1.1.1 CLSM也被称为可流动填料、控制密度填料、水泥土泥浆、水泥土灌浆、不可收缩填料和其他类似名称。 1.2 单位- 以英寸-磅单位或国际单位制单位表示的值应单独视为标准值。每个系统中陈述的值可能不完全等同;因此,每个系统应独立使用。合并两个系统的值可能导致不符合标准。 1.2.1 在处理英磅单位时,使用英磅单位的重力系统。在系统中,磅(lbf)代表力(重量)的单位,而质量的单位是块。除非涉及动态(F=ma)计算,否则未给出段塞单元。 1.2.2 所有观察值和计算值应符合实践中制定的有效数字和四舍五入指南 D6026 . 1.2.3 标准中用于规定如何收集/记录和计算数据的程序被视为行业标准。此外,它们代表通常应保留的有效数字。所使用的程序不考虑材料变化、获取数据的目的、特殊目的研究或对用户目标的任何考虑;通常的做法是根据这些考虑因素增加或减少报告数据的有效数字。考虑工程设计分析方法中使用的有效数字超出了这些测试方法的范围。1.3 本标准并不旨在解决与其使用相关的所有安全性问题(如果有)。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 5.1 该测试方法主要用作现场测试,以确定CLSM在添加临时或永久磨损表面之前是否准备好接受载荷。5.2 该试验方法并不意味着预测CLSM混合物的承载强度。 5.3 该测试是一系列质量控制测试之一,可在施工期间对CLSM进行,以监控是否符合规范要求。在施工控制中可以使用的其他测试是测试方法 D4832/D4832M , D6023 ,和 D6103/D6103M . 附注1: 本标准产生的结果的质量取决于执行该标准的人员的能力以及所用设备和设施的适用性。符合执业准则的机构 D3740 通常被认为能够胜任和客观的测试/取样/检查。可靠的结果取决于许多因素;实践 D3740 提供了一种评估部分(但不是全部)这些因素的方法。
1.1 This test method explains the determination of the ability of Controlled Low Strength Material (CLSM) to withstand loading by repeatedly dropping a metal weight onto the in-place material. 1.1.1 CLSM is also known as flowable fill, controlled density fill, soil-cement slurry, soil-cement grout, unshrinkable fill, and other similar names. 1.2 Units— The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.2.1 The gravitational system of inch-pound units is used when dealing with inch-pound units. In the system, the pound (lbf) represents a unit of force (weight), while the units for mass is slugs. The slug unit is not given, unless dynamic (F = ma) calculations are involved. 1.2.2 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 . 1.2.3 The procedures used to specify how data are collected/recorded and calculated in the standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method is used primarily as a field test to determine the readiness of the CLSM to accept loads prior to adding a temporary or permanent wearing surface. 5.2 This test method is not meant to predict the load bearing strength of a CLSM mixture. 5.3 This test is one of a series of quality control tests that can be performed on CLSM during construction to monitor compliance with specification requirements. The other tests that can be used during construction control are Test Methods D4832/D4832M , D6023 , and D6103/D6103M . Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it and the suitability of the equipment and facility used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some, but not all, of those factors.
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归口单位: D18.15
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