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４．４混凝土砌块工程《砌体工程施工及验收规范》GB５０２０３—９８５．１．２承重墙体严禁使用断裂小砌块或壁肋中有竖向裂缝的小砌块。５．１．４底层室内地面以下或防潮层以下的砌体，应采用强度等级不低于C１５的混凝土灌实砌体的孔洞。５．２．１砌筑墙体时，小砌块的生
4.4 Concrete block works “masonry construction and acceptance norms” GB50203-985.1.2 bearing wall is strictly prohibited the use of small cracks in the wall or wall ribs in the vertical cracks in small blocks. 5.1.4 masonry below the ground floor or below the moisture barrier, should be used for concrete strength of not less than C15 filling concrete masonry holes. 5.2.1 masonry wall, the small block of students