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钢纤维混凝土一般使用425号、525号普通硅酸盐水泥
[来源:http://www.gangxianwei51.com] [作者:不详] [日期:17-02-08] [浏览次数:]
钢纤维混凝土 Steel fiber reinforced concrete (l)材料。制备普通钢纤维混凝土,主要使用低碳钢纤维。制备耐火混凝土,则必须使用不锈钢纤维。圆截面长直形钢纤维直径一般为o.25~0. 75mm;扁平形钢纤维厚度为0. 15~0. 4mm,宽度为0.25~0. 9mm,长度均为20~60mm。为改善界面黏结,还有端部带弯钩的钢纤维等。 (l) materials. Preparation of ordinary steel fiber reinforced concrete, the main use mild steel fiber. The preparation of refractory concrete, must use the stainless steel fibers. Long straight shape steel fiber diameter with circular cross section is commonly o. 25 ~ 0. 75 mm; Flat steel fiber thickness of 0. 15 ~ 0. 4 mm, width is 0.25 ~ 0. 9 mm, length of 20 ~ 60 mm. To improve the interface bonding, and end with the hooked steel fiber, etc. 钢纤维混凝土一般使用425号、525号普通硅酸盐水泥,高强钢纤维混凝土可使用625号硅酸盐水泥或明矾石水泥,水泥用量比普通未掺纤维的应高10%左右。 Steel fiber reinforced concrete generally use 425, 525 ordinary Portland cement, identity of fiber reinforced concrete can use 625 # silicate cement or alum stone, cement, cement dosage is higher than ordinary not doped fiber should be around 10%. (2)掺量。为保证纤维能均匀分布于}昆凝土,长径比不应大于100,一般为60~80。对每种规格的纤维都有一最大掺量的限值,一般为0.5%~2%(体积率)。 (2) content. In order to ensure the fiber can be distributed evenly over} the concrete, the length to diameter ratio should not be greater than 100, the general is 60 ~ 80. For each specifications of the fiber has a maximum dosage limit, general is 0.5% ~ 2% (volume ratio). (3)搅拌。钢纤维混凝土采用强制式搅拌机搅拌,为使纤维能均匀分散于混凝土中,应通过摇筛或分散机加料。 (3) the stirring. Steel fiber reinforced concrete using forced mixer mixing, to make the fiber can be evenly dispersed in the concrete, shall be through a sieve or dispersion machine loading.

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