1.1 这些试验方法提供了一种确定向参考混凝土或砂浆中添加聚合物改性剂的效果的方法。 1.2 ASTM水硬性水泥砂浆和混凝土的测试方法和实践的大多数章节适用于聚合物改性剂制成的试样的制备和测试。然而，也有一些例外情况，尤其是固化，需要特殊程序才能开发聚合物改性的固有特性。这些测试方法涵盖了这些例外情况。 1.3 对于测试聚合物改性砂浆和混凝土样本，本标准中的程序取代参考ASTM测试方法和实践中的程序。这些试验方法不适用于干燥的包装砂浆和混凝土。 1.4 以国际单位制表示的数值应视为标准值。 本标准不包括其他计量单位。如果从另一标准获得的所需结果未在本标准使用的相同单位制中报告，则允许使用SI快速参考指南中的转换因子转换这些结果。 1.5 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. ) 1.6 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====== 4.1 这些测试方法用于开发与规范要求进行比较的数据 C1438 . 标准化程序用于比较由聚合物改性混凝土或砂浆的试验混合物制成的试样的性能与由参考混合物制成的试样的性能。这些测试方法不是为了模拟工作条件。

1.1 These test methods provide a means of determining the effect of adding polymer modifiers to reference concrete or mortar. 1.2 Most sections of ASTM test methods and practices for hydraulic cement mortar and concrete apply to the preparation and testing of specimens made with polymer-modifiers. However, there are some exceptions, most notably curing, that need special procedures in order to develop the properties inherent with polymer-modification. These test methods cover these exceptions. 1.3 For testing polymer-modified mortar and concrete specimens, the procedures in this standard supersede those in the referenced ASTM test methods and practices. These test methods are not applicable to dry, packaged mortar and concrete. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. If required results obtained from another standard are not reported in the same system of units as used by this standard, it is permitted to convert those results using the conversion factors found in the SI Quick Reference Guide. 1.5 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 ) 1.6 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 ====== 4.1 These test methods are used to develop data for comparison with the requirements of Specification C1438 . Standardized procedures are used to compare the properties of specimens made from test mixtures of polymer-modified concrete or mortar with the properties of specimens made from reference mixtures. These test methods are not intended to simulate job conditions.