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The durability of reactive powder concrete: a review

机译:反应性粉末混凝土的耐久性:综述

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Reactive powder concrete(RPC)is a new cement-based composite material with ultra-high strength,high ductility and good toughness,which has an extensive application prospects.Based on the domestic and foreign research achievements,the durability of reactive powder concrete is integrally discussed from the standpoints of freezing-thawing resistance chloride ion penetration,carbonization,erosion,and abrasion.Under freeze-thaw cycle,the mass loss of RPC is minimal,chloride ion permeability of RPC is almost negligible,active admixtures can improve the sulfate corrosion resistance of RPC significantly.Moreover,RFC has excellent carbonation resistance and abrasion resistance.The mechanisms of the supreme durability of RFC are analysed in detail.The outlook on topical problems and promising research directions in this field is presented.
机译:反应性粉末混凝土(RPC)是一种新的水泥基复合材料,具有超高强度,高延展性和良好韧性,具有广泛的应用前景。基于国内外研究成果,反应性粉末混凝土的耐久性一体地从冰冻解冻抗性氯化物离子渗透,碳化,腐蚀和磨损的观点讨论。冻融循环下,RPC的质量损失最小,RPC的氯离子渗透性几乎可以忽略不计,活性混合物可以改善硫酸盐腐蚀RPC的抗性显着。RFC具有优异的碳化性能和耐磨性。详细分析了RFC的最高耐久性的机制。介绍了该领域的局部问题和有前景的研究方向。

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