ASTM C139-2001 标准详情
- 标准号:ASTM C139-2001
- 中文标题:雨水井和人孔建造用混凝土砌块规格
- 英文标题:standard specification for concrete masonry units for construction of catch basins and manholes
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2001
1.1 This specification covers solid precast segmental concrete masonry units made from a mixture of portland cement, water, and suitable mineral aggregates, with or without the inclusion of other materials. The units are intended for use in the const
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