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固结混凝土的静态离析。 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以英寸磅或国际单位制表示的数值应单独视为标准值。在文本中，国际单位显示在括号中。每个系统中规定的值不是精确的等价物；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。 1.4本标准的文本引用了提供解释性材料的注释和脚注。 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。 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。 （新鲜的水硬性水泥基混合物具有腐蚀性，长时间接触可能会导致皮肤和组织化学烧伤。） ====意义和用途====== 该试验方法为用户提供了一个实验室程序，以确定自固结混凝土的潜在静态离析。 该测试方法应用于开发自己的- 固结离析不超过规定极限的混凝土混合物。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，但对墙或柱等深截面应用尤其重要。因此，离析程度可以表明混合物是否适合应用。 笔记 1-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 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 The values stated in either inch-pounds or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not 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. 1.4 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. 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. (Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.) ====== Significance And Use ====== This test method provides users with a laboratory procedure to determine the potential static segregation of self-consolidating concrete. 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 1—Some level of segregation is tolerable as long as the desired strength and durability performance is achieved.