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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
168211
元
材料费:77201元
人工费:86544元
设计费:1760元
质检费:2706元
你好,某高速公路一座桥梁,8*30米先简支后连续预应力桥,C50预制T梁,湿接缝为C50微膨胀水泥砼,求助湿接缝C50微膨胀水泥砼配合比怎样设计,可否采用预制T梁C50的配合比。1.M5水泥砂浆配合比 首先需要达到基本的施工水平。然后准备沙子等材料。这里的沙子含水率需要2.5%。水泥实际强度:32.5 MPa。配合比例:水泥:中砂
1:5.23。水泥67.59Kg、中砂354Kg。(每立方米砖砌体中,需要M5水泥砂浆是0.238m3) 2.M7.5水泥砂浆配合比 一般准备条件同M5水泥砂浆配合比一样。水泥实际强度要求也是32.5 MPa 配合比例:水泥:中砂
1:4.82。水泥77.31Kg;中砂373Kg。(每立方米砖砌体中,需要M7.5水泥砂浆是0.251m3) 3.M15水泥砂浆配合比 强度等级达到M15的水泥砂浆配合比有以下要求:原材料 水泥、中砂、河砂、水。每1㎡材料用量/kg 320 1450 310~330。 配合比例:水泥:中砂
1:5.27。 4.M20水泥砂浆配合 强度等级达到M20的水泥砂浆配合比有以下要求:原材料:32.5级水泥、中砂、水。每1㎡材料用量/kg 360 1450 310~330。配合比例:水泥:中砂
1:4.03。
①水泥混凝土最大水泥含量不能1m³超出500公斤,因为不是油多不坏菜,而是水泥越多,水化热过大,反而引起混凝土内部开裂,影响强度,于耐久性不利;②水灰比过大,影响混凝土强度,其原因是:当混凝土中水含量过高时,反而会引起混凝土的和易性差,也增大了混凝土的收缩徐变,对结构受力不利,尤其对预应力混凝土结构不利。提问者评价谢谢了