摘要
为探究植物纤维对地聚物材料力学性能的影响,解决地聚物材料韧性差的不足,选用小麦秸秆,经过质量分数4%氢氧化溶液预处理后,以1%,2%,3%,4%,5%的质量比掺入矿渣基地聚物材料,通过抗压强度试验和抗折强度试验分析不同掺量的麦秸秆纤维对地聚物材料力学性能的影响,并分析其折压比的变化规律。研究结果表明,秸秆纤维的掺加会导致抗压强度略有下降;地聚物材料抗压抗折强度随纤维掺量增加呈先上升后下降的变化趋势,当纤维掺量为3%时,其28 d抗折强度提高了21.6%,此时抗压强度为40.7 MPa,折压比为0.221,增韧效果最佳。
In order to explore the effect of plant fiber on the mechanical properties of geopolymer materials and solve the problem of poor toughness of geopolymer materials,wheat straw was selected in this paper.After pretreatment with 4%concentration of hydroxide solution,slag-based geopolymer materials were mixed with 1%,2%,3%,4%and 5%mass ratio.The effects of different amounts of wheat straw fiber on the mechanical properties of geopolymer materials were analyzed by compressive strength test and flexural strength test,and the change rule of flexural-compressive ratio was analyzed.The results show that the addition of straw fiber will lead to a slight decrease in compressive strength.The compressive and flexural strength of geopolymer materials increased first and then decreased with the increase of fiber content.When the fiber content was 3%,the 28 d flexural strength increased by 21.6%,the compressive strength was 40.7 MPa,the ratio of flexural strength to compressive strength was 0.221,and the toughening effect was the best.
作者
聂嘉昕
牛相杰
王肖凯
孙新凯
Nie Jiaxin;Niu Xiangjie;Wang Xiaokai;Sun Xinkai(College of Civil Engineering and Transportation,North China University of Water Resources and Electric Power,Zhengzhou 450000,China)
出处
《山东化工》
CAS
2024年第2期73-75,81,共4页
Shandong Chemical Industry
关键词
地聚物
小麦秸秆
建筑材料
力学性能
geopolymer
wheat straw
building materials
mechanical properties
作者简介
聂嘉昕,硕士研究生,研究方向:地聚物材料。
