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为了缩短钢丝网水泥的硬化期,我们试用蒸汽养护的办法,取得了良好效果。用蒸汽养护钢丝网水泥农船时,必须注意它的结构特点和使用要求。钢丝网水泥是在砂浆中用多层网格形钢丝配筋,配筋量一般为250～500公斤/立方米,这种结构材料具有下列特点:1.砂浆标号较高,大于300号,水泥用量多(配比为1:1.5～2),砂子表面积大和加水最多,因而砂浆收缩较大。2.钢丝数量多,表面积大;网格形配筋对限制变形能起较大的作用。3.薄壁结构的表面积大,保护层很薄,因此,钢丝对减薄断面有一定影响。
In order to shorten the hardening period of the wire mesh cement, we tried the steam curing method and achieved good results. When steam-conserving ferrocement tankers, it must pay attention to its structural characteristics and application requirements. Wire mesh cement is reinforced with multi-layer mesh steel wire in the mortar. The amount of reinforcement is generally 250-500 kg/m3. This structural material has the following characteristics: 1. The mortar number is higher than 300, cement The use amount is much (the ratio is 1:1.5~2), the surface area of the sand is large and the water is added, so the mortar shrinks greatly. 2. The number of steel wires is large and the surface area is large; the grid-shaped reinforcing bars play a greater role in limiting deformation. 3. The thin-walled structure has a large surface area and the protective layer is very thin. Therefore, the steel wire has a certain influence on the thinned section.