本文件通过确定寒冷天气混凝土浇筑方法的选择过程，指导规范制定者、承包商和混凝土生产商。寒冷天气混凝土浇筑实践的目标是:a）防止混凝土因早期冻结而受损；b） 确保混凝土达到安全拆除模板的建议强度；c） 保持养护条件，促进正常强度发展；d） 限制温度的快速变化；e）提供与结构预期可使用性一致的保护。 在寒冷天气下浇筑的混凝土在适当配比、生产、浇筑和保护后，将产生足够的强度和耐久性，以满足预期的使用要求。

This document guides specifiers, contractors, and concrete producers through the selection processes that identify methods for cold weather concreting. The objectives of cold weather concreting practices are to: a) prevent damage to concrete due to freezing at early ages; b) ensure that the concrete develops the recommended strength for safe removal of forms; c) maintain curing conditions that foster normal strength development; d) limit rapid temperature changes; and e) provide protection consistent with intended serviceability of the structure. Concrete placed during cold weather will develop sufficient strength and durability to satisfy intended service requirements when it is properly proportioned, produced, placed, and protected.