为了研究纤维和粉煤灰对长期浸泡作用下聚乙烯醇纤维增强水泥基复合材料(PVA纤维/水泥复合材料)抗硫酸钠侵蚀的影响,对多次试验周期后的试件表观形貌变化、质量变化、体积变化、抗压强度和微观结构进行分析研究.试验结果表明,纤维的掺入及良好的分散,在水泥基体中形成了良好的网络分布结构,使PVA纤维/水泥复合材料在硫酸钠溶液中的侵蚀速度减缓,但纤维掺量有一个最佳值;粉煤灰的掺入在一定程度上密实了PVA纤维/水泥复合材料,使其抗硫酸钠侵蚀性能得到改善,质量分数在50％之内时随着掺量的增加而更加明显.
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