1.1本程序包括通过确定应力应变行为来确定蒸压加气混凝土（AAC）在压缩过程中的弹性模量。AAC是一种基于硅酸钙水合物的水泥产品，其中通过加入导致宏观孔隙的药剂来实现低密度，并经过高压蒸汽养护。 注1-本标准涵盖的已安装装置必须使用AAC制造商认可的涂层材料进行保护，以防直接暴露在湿气中。 1.2根据本试验方法测试的AAC应符合规范C 1386。 1.3以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 本试验方法旨在提供简化且经济的方法，以获取针对不同类型AAC等级开发的弦弹性模量数据。

1.1 This procedure covers the determination of the modulus of elasticity of Autoclaved Aerated Concrete (AAC) in compression by determining the stress-strain behavior. AAC is a cementitious product based on calcium silicate hydrates in which low density is attained by the inclusion of an agent resulting in macroscopic voids, and is subjected to high pressure steam curing. Note 1 - Installed units covered by this standard must be protected against direct exposure to moisture using a coating material accepted by the AAC manufacturer. 1.2 AAC tested in accordance with this test method shall comply with Specification C 1386. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== This test method is intended to provide simplified and economical means for obtaining data on the chord modulus of elasticity developed for different types of AAC grades.