玄武岩纤维和碳纤维对粉煤灰-矿渣基地聚物早期力学性能的影响  

Effects of Basalt Fiber and Carbon Fiber on the Early Mechanical Properties of Fly Ash-slag Based Geopolymer

作　　者：宋京京 张世豪 刘帆 SONG Jing-jing;ZHANG Shi-hao;LIU Fan(Tangshan Polytechnic University,Tangshan 063000,China;School of Civil Engineering,Southeast University,Nanjing 210096,China;China Gezhouba Group Co.,Ltd.,Wuhan 430033,China)

机构地区：[1]唐山工业职业技术学院,唐山063000 [2]东南大学土木工程学院,南京210096 [3]中国葛洲坝集团股份有限公司,武汉430033

出　　处：《中国陶瓷》2024年第10期52-60,共9页China Ceramics

基　　金：国家自然科学基金(52008089)。

摘　　要：为研究玄武岩纤维和碳纤维对粉煤灰-矿渣基地聚物早期力学性能的影响,制备了不同纤维掺量(0.1%、0.2%、0.3%)的玄武岩纤维增强地聚物、碳纤维增强地聚物,测试了其在3 d、7 d、28 d龄期时的抗压、抗折和抗拉强度,并与纤维增强水泥浆体的早期力学性能进行了对比。此外,对比分析了粉煤灰-矿渣基地聚物和普通硅酸盐水泥的碳排放。结果表明:玄武岩纤维和碳纤维均可提高地聚物和水泥浆体3 d、7 d、28 d龄期时的力学性能,且对3 d龄期时力学性能的提高幅度最大。玄武岩纤维和碳纤维的最佳掺量分别为0.2%、0.1%。与水泥浆体相比,玄武岩纤维和碳纤维对地聚物力学性能的优化效果更佳。与碳纤维相比,玄武岩纤维对地聚物力学性能的优化效果更佳。粉煤灰-矿渣基的碳排放较普通硅酸盐水泥减少43.92%。In order to study the effects of basalt fiber and carbon fiber on the early mechanical properties of fly ash-slag based geopolymer,basalt fiber reinforced geopolymer and carbon fiber reinforced geopolymer with different fiber contents(0.1%,0.2%,0.3%)were prepared.The compressive,flexural,and tensile strengths at 3 days,7 days,and 28 days were tested and compared with the early mechanical properties of fiber reinforced cement slurry.In addition,the carbon emissions of fly ash-slag based geopolymer and ordinary Portland cement were compared and analyzed.The results showed that both basalt fiber and carbon fiber could improve the mechanical properties of geopolymer and cement slurry at 3 days,7 days,and 28 days,with the greatest improvement observed at 3 days.The optimum content of basalt fiber and carbon fiber was 0.2%and 0.1%,respectively.Compared with cement slurry,basalt fiber and carbon fiber have a better optimization effect on the mechanical properties of geopolymer.Compared with carbon fiber,basalt fiber has a better optimization effect on the mechanical properties of geopolymer.The carbon emissions of fly ash-slag based geopolymer were reduced by 43.92%compared to ordinary Portland cement.

关 键 词：地聚物 水泥浆体 玄武岩纤维 碳纤维 早期力学性能 碳排放 

分 类 号：TQ317[化学工程—高聚物工业]