1.1 本试验方法包括通过测量圆柱形试样（或柱）顶部和底部的粗骨料含量来确定自密实混凝土（SCC）的静态离析。 1.2 本试验方法不适用于含有轻骨料的自密实混凝土。 1.3 本试验方法适用于实验室和现场条件。 1.4 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 1.5 本标准的文本引用了提供解释材料的注释和脚注。 这些注释和脚注（不包括表和图中的注释和脚注）不应视为本标准的要求。 1.6 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、健康和环境实践，并确定监管限制的适用性。 ( 警告- 新鲜的水硬性胶结混合物具有腐蚀性，长时间接触可能会导致皮肤和组织化学烧伤。 2. ) 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 该试验方法为用户提供了一个确定自密实混凝土潜在静态离析的程序。 注1: 该试验方法可能不够快速，无法在浇筑前现场评估自固结混凝土混合物。试验方法 C1712 提供了一种快速评估自固结混凝土静态抗离析性的方法。 5.2 本试验方法应用于开发离析不超过规定极限的自固结混凝土混合物。自密实混凝土是一种流动混凝土，如果不按比例进行粘结，则容易离析。粘性自固结混凝土对所有应用都很重要，但对深层混凝土尤其重要- 剖面应用程序，例如墙或柱。因此，离析程度可以表明混合物是否适合应用。 注2: 只要达到所需的强度和耐久性性能，就可以容忍一定程度的离析。

1.1 This test method covers the determination of static segregation of self-consolidating concrete (SCC) by measuring the coarse aggregate content in the top and bottom portions of a cylindrical specimen (or column). 1.2 This test method is not applicable to self-consolidating concrete containing lightweight aggregate. 1.3 This test method is applicable under laboratory and field conditions. 1.4 The values stated in either SI units or inch-pound 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 non-conformance with the standard. 1.5 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.6 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. ( Warning— Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. 2 ) 1.7 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 provides users with a procedure to determine the potential static segregation of self-consolidating concrete. Note 1: This test method may not be sufficiently rapid to evaluate self-consolidating concrete mixtures in the field before placement. Test Method C1712 provides a rapid method for assessing static segregation resistance of self-consolidating concrete. 5.2 This test method shall be used to develop self-consolidating concrete mixtures with segregation not exceeding specified limits. Self-consolidating concrete is a fluid concrete that can be prone to segregation if not proportioned to be cohesive. A cohesive self-consolidating concrete is important for all applications but is especially critical for deep-section applications such as walls or columns. Therefore, the degree of segregation can indicate if a mixture is suitable for the application. Note 2: Some level of segregation is tolerable as long as the desired strength and durability performance is achieved.