玄武岩纤维材料在酸、碱性环境下的耐久性试验研究*

摘要

为了解玄武岩纤维本身的耐酸、耐碱性能，对其在80℃2 mol/L盐酸和氢氧化钠溶液中腐蚀不同周期后的质量变化、单丝强度进行了试验研究，并与聚丙烯纤维、耐碱玻璃纤维的耐酸碱性进行了对比。结果表明，在耐酸性能方面，玄武岩纤维最优，其次是聚丙烯纤维，耐碱玻璃纤维表现最差；在耐碱性能方面，表现优劣依次为聚丙烯纤维、玄武岩纤维和耐碱玻璃纤维。试验结果为玄武岩纤维新材料在水泥混凝土中的推广应用提供参考。%In order to understand the acid and alkali resistance performance of basalt fiber, tests are done to study the quality change and monofilament strength under the situation of 80℃, 2 mol/L hydrochloric acid and sodium hydroxide solution corrosion, and comparison is done for the polypropylene fiber, alkali glass fiber acid-proof alkaline. The results show that for the acid performance, basalt fiber is the optimal, followed by polypropylene fiber, alkali glass fiber. For the alkali resistance performance, quality performance in the consequence of polypropylene fiber, basalt fiber and alkali glass fiber. Test results provide the reference for basalt fiber and new materials in the popularization and application of cement concrete.