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钢纤维耐腐蚀性
关于钢纤维混凝土耐腐蚀试验的介绍可知，开裂的钢纤维混凝土构件在潮湿的环境中，裂缝处的混凝土碳化，碳化区的钢纤维锈蚀，碳化深度和锈蚀程度随时间增长而发展，对钢纤维混凝土来说，主要是利用裂后弧度和裂后韧性，虽然裂缝宽度比钢筋混凝土小，但是终究是有裂缝的，故此应对在潮湿环境中，特别是在海滨使用的钢纤维混凝土采取防防锈蚀措施. 试脸证明，在保证钢纤维混凝土构件具有同等承载能力的前提下，采用直径较大的钢纤维，能提高耐腐蚀性， 采用涂复环氧树脂或镀锌的钢纤维，将能提高耐腐蚀性，如果施工工艺许可的话，可只在混凝土表层1-2cm采用这种钢纤维，必要时也可以采用不诱钢纤维。
The introduction of corrosion resistance test of steel fiber reinforced concrete shows that cracked steel fiber reinforced concrete members develop with time in humid environment, concrete carbonization at cracks, steel fiber corrosion in carbonization zone, carbonization depth and corrosion degree. For steel fiber reinforced concrete, the main use is post-crack arc and post-crack toughness, although the crack width is smaller than that of reinforced concrete, but the crack width is smaller than that of reinforced cwww.fenqieji.net.cnwww.qiezhiji.net.cnwww.weishengzhiji.com.cnwww.gangxianwei.net.cn www.wushuichulii.cnwww.jiedixuanxian.cnoncrete. After all, there are cracks, so anti-rust measures should be taken in wet environment, especially in seashore steel fiber reinforced concrete. The test face proves that, on the premise of ensuring equal bearing capacity of steel fiber reinforced concrete members, the use of steel fibers with larger diameter can improve the corrosion resistance. The use of epoxy resin coated or galvanized steel fibers will improve the corrosion resistance. If the construction technology permits, this kind of steel fiber can only be used in the concrete surface layer 1-2 cm, and if necessary, it can also be used in the non-luring steel fiber.
The introduction of corrosion resistance test of steel fiber reinforced concrete shows that cracked steel fiber reinforced concrete members develop with time in humid environment, concrete carbonization at cracks, steel fiber corrosion in carbonization zone, carbonization depth and corrosion degree. For steel fiber reinforced concrete, the main use is post-crack arc and post-crack toughness, although the crack width is smaller than that of reinforced concrete, but the crack width is smaller than that of reinforced cwww.fenqieji.net.cnwww.qiezhiji.net.cnwww.weishengzhiji.com.cnwww.gangxianwei.net.cn www.wushuichulii.cnwww.jiedixuanxian.cnoncrete. After all, there are cracks, so anti-rust measures should be taken in wet environment, especially in seashore steel fiber reinforced concrete. The test face proves that, on the premise of ensuring equal bearing capacity of steel fiber reinforced concrete members, the use of steel fibers with larger diameter can improve the corrosion resistance. The use of epoxy resin coated or galvanized steel fibers will improve the corrosion resistance. If the construction technology permits, this kind of steel fiber can only be used in the concrete surface layer 1-2 cm, and if necessary, it can also be used in the non-luring steel fiber.
