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为提高钢纤维混凝土耐久性能,采用复掺的方式,选择高品质的硅灰掺入到钢纤维的混凝土结构中。在保证基准配合比相同的情况下,通过不同的硅灰与钢纤维配合比,探讨硅灰对钢纤维混凝土耐久性能的影响。通过实验结果表明,随着硅灰掺入钢纤维混凝土量的增加,混凝土的抗折强度、抗压强度和劈裂强度、抗冻性能都明显提高,并在12%硅灰+1.2%钢纤维时达到最大。
In order to improve the durability of steel fiber reinforced concrete, the use of complex way, choose high-quality silica fume incorporation into the steel fiber concrete structure. Under the condition of guaranteeing the same compounding ratio, the effect of silica fume on the durability of steel fiber reinforced concrete was discussed through the different mixture ratio of silica fume and steel fiber. The experimental results show that the flexural strength, compressive strength, splitting strength and frost resistance of concrete increase obviously with the increase of the amount of silica fiber mixed with steel fiber. In the case of 12% silica fume + 1.2% steel fiber Reach the maximum