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最近我们研制了三块预应力钢丝网细石混凝土槽形农房楼板,现简介如下: 板长3.98米,板宽0.59米,板肋高0.16米,整板重量为156.4公斤,仅为同规格混凝土多孔条板重量的35％,水泥用量仅为45％,钢材用量为87％,总材料费用节省37％,其截面示意图见下图。板面为一层网的钢丝网细石混凝土,板肋为细石加筋混凝土,筋为预应力冷拔低碳钢丝。细石混凝土的配比系水泥:水:砂:石为1:0.4:1.5:2.0,水泥为400~#普通硅酸盐水泥。
Recently, we have developed three pieces of prestressed steel wire mesh fine stone concrete trough farm house floor slabs, which are summarized as follows: 3.88 meters long, 0.59 meters wide, 0.16 meters high ribs, the entire board weighs 156.4 kg, only the same specifications With 35% of the weight of the concrete porous slats, the amount of cement is only 45%, the amount of steel used is 87%, and the total material cost is saved by 37%. The cross-section diagram is shown in the figure below. The surface of the board is a layer of net wire mesh fine concrete, the board ribs are fine stone reinforced concrete, and the ribs are prestressed cold drawn low carbon steel wire. Fine stone concrete ratio cement: water: sand: stone is 1:0.4:1.5:2.0, cement is 400~# ordinary portland cement.