框架结构砼浇筑技术交底.doc

交底内容：
框架结构砼浇筑

  本技术交底适用于一般现浇框架及框架剪力墙混凝土的浇筑工程。
1．材料要求
(1)水泥；325号以上矿渣硅酸盐水泥或普通硅酸盐水泥。进场时必须有质量证明书及复试试验报告。
(2)砂：宜粗砂或中砂。混凝土低于C30时，含泥量不大于5%，高于C30时不大于3%。
(3)石子：粒径0.5～3.2厘米，混凝土低于C30时含泥量不大于2%，高于C30
Cards on the table contents:
Pouring Frame

  The technical disclosure applicable to the general framework and the framework of the wall cast concrete casting works.
1. Material requirements
(1) cement; 325 or more slag Portland cement or ordinary Portland cement. Approach must have quality certificate and retest the test report.
(2) sand: coarse sand or the sand should. C30 concrete below when the mud content less than 5%, higher than the C30 is not more than 3% of the time.
(3) gravel: 0.5 ~ 3.2 cm diameter, concrete below when the silt content of C30 is less than 2%, higher than the C30