ASTM C1761/C1761M-23 混凝土内部养护用轻质骨料标准规范1.1 This specification covers lightweigh

匿名 发表于 2023-12-22 10:17:00 |阅读模式

ASTM C1761/C1761M-23 混凝土内部养护用轻质骨料标准规范1.1 This specification covers lightweight aggregate intended to provide water for internal curing of concrete. It includes test methods

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ASTM C1761/C1761M-23 混凝土内部养护用轻质骨料标准规范1.1 This specification covers lightweigh

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