骨料和纤维种类对锰渣加气混凝土性能的影响  

Effect of aggregate and fiber types on properties of manganese slag aerated concrete

作　　者：董双快 卞慧昕 吴福飞[2] 陈亮亮 DONG Shuangkuai;BIAN Huixin;WU Fufei;CHEN Liangliang(Academic Affairs Office,Guizhou Normal University,Guiyang 550025,China;School of Materials and Architectural Engineering,Guizhou Normal University,Guiyang 550025,China;ChongQing Water Resources and Electric Engineering College,Chongqing 402160,China)

机构地区：[1]贵州师范大学教务处,贵州贵阳550025 [2]贵州师范大学材料与建筑工程学院,贵州贵阳550025 [3]重庆水利电力职业技术学院,重庆402160

出　　处：《新型建筑材料》2021年第4期140-143,159,共5页New Building Materials

基　　金：贵州省教育厅青年科技人才成长项目(黔教合KY字[2018]125号);重庆市教委科学技术研究项目(KJQN201903801);重庆水利电力职业技术学院科研重点项目(KRC201803);贵州省科技支撑计划(黔科合支撑[2021]486);贵州师范大学2016年博士科研启动项目(0517073)。

摘　　要：研究了粉煤灰、玻化微珠和加气混凝土细砂作为骨料,稻草叶纤维、稻草杆纤维、竹筋纤维和聚丙烯纤维作为纤维对锰渣加气混凝土性能的影响。试验结果表明:粉煤灰、玻化微珠和加气混凝土细砂替代硅砂降低了锰渣加气混凝土的干密度,但也大幅度地降低了其抗压强度。稻草叶纤维、稻草杆纤维、竹筋纤维和聚丙烯纤维掺入锰渣加气混凝土后,其干密度降低了1.8%~16.0%,抗压强度提高了9%~44%,抗拉强度提高了2%~38%,但吸水量增大了0.79%~13.30%。It discusses the influence of fly ash,vitrified beads and fine sand of aerated concrete as aggregate,straw leaf fiber,straw rod fiber,bamboo fiber and polypropylene fiber as fiber on the performance of aerated concrete with manganese slag.The experimental results show that:The replacement of silica sand with fly ash,vitrified beads and aerated concrete fine sand can not only reduce the dry density of aerated concrete with manganese slag,but also greatly reduce its compressive strength.With the addition of straw leaf fiber,straw rod fiber,bamboo fiber and polypropylene fiber,dry density of aerated concrete with manganese slag decreased by 1.8%~16%,compressive strength increased by 9%~44%,tensile strength increased by 2%~38%,and water absorption increased by 0.79%~13.3%.

关 键 词：骨料种类 纤维种类 加气混凝土 抗压强度 抗拉强度 

分 类 号：TU528.2[建筑科学—建筑技术科学]