干湿循环作用下PVA-FRCC抗硫酸盐侵蚀性能研究

Experimental Studies on Sulfate-Resistance Property of PVA-FRCC in Wet-dry Cycles

本文对干湿循环作用下聚乙烯醇纤维增强水泥基复合材料(Polyvinyl alcohol fiber reinforced cementitious composites,简写为PVA-FRCC)的抗硫酸钠侵蚀性能进行了试验研究。结果表明干湿循环侵蚀过程中,纤维掺量大于1%时,PVA-FRCC的抗硫酸钠侵蚀性能明显得到改善;粉煤灰掺量在50%之内时,PVA-FRCC的抗硫酸钠侵蚀性能随掺量的增大改善效果明显。

The thesis focus on sulfate-resistant property of PVA-FRCC in wet-dry cycles. Study re- suits confirm that sulfate-resistant property of PVA-FRCC in wet-dry cycles is improved with fiber content more than 1% ,and improved greately within 50% dosage of fly ash.