纤维对碱激发矿渣胶凝材料的影响研究  

ON THE EFFECT OF FIBER ON ALKALI-ACTIVATED SLAG CEMENTITIOUS MATERIALS

作　　者：秦艺鸣 姜福香[1] 王玉田[1] 姜乐乐 饶珂 QIN Yiming;JIANG Fuxiang;WANG Yutian;JIANG Lele;RAO Ke(School of Civil Engineering,Qingdao University of Technology,Shandong Qingdao 266000,China;Licheng Holding Co.,Ltd.,Jinan 250000,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266000 [2]历城控股集团有限公司,济南250000

出　　处：《低温建筑技术》2023年第3期42-45,共4页Low Temperature Architecture Technology

摘　　要：为了改善碱激发矿渣胶凝材料(AASCM)在韧性方面的问题,通过对掺加不同纤维的碱激发矿渣胶凝材料进行抗压强度试验、抗折强度试验以及三点弯曲试验,研究不同纤维增韧的效果。结果表明3种纤维对碱激发胶凝材料的抗折增韧均有一定的改善且掺量越大效果越好。其中玻璃纤维(GF)增韧效果较差,玄武岩纤维(BF)和聚乙烯醇(PVA)纤维具有相似的效果,而聚乙烯醇纤维表现更加优异,在2.0%的体积掺量下等效弯曲韧性提升了45倍。To improve the toughness of alkali-activated slag cementitious materials(AASCM),the toughening effectiveness of different fibers is studied by performing compressive strength test,flexural strength test and three-point bending test on alkali-excited slag cementitious material mixed with different fibers.The results show that the flexural toughening of the alkali-inspired cementitious materials of the three fibers is improved,in which the larger the dosage,the better the effectiveness.Glass fiber(GF)toughening effectiveness is poor,and polyvinyl alcohol(PVA)fiber has better performance than that of basalt fiber(BF),in which the equivalent flexural toughness is increased by 45 times at 2.0%volumetric content.

关 键 词：碱激发矿渣胶凝材料 玄武岩纤维 玻璃纤维 聚乙烯醇纤维 压折比 增韧机理 

分 类 号：TU528.042[建筑科学—建筑技术科学]