纤维增强沙漠砂混凝土配合比试验研究
Experimental Study on Mix Proportion of Fiber Reinforced Desert Sand Concrete
关键词:
正交试验;沙漠砂;纤维;抗压强度;抗折强度;劈裂抗拉强度
Key words:
Orthogonal test; Desert sand; Fiber; Compressive strength; Bending strength; Split tensile strength
刊期:
2020年第7期
DOI:
10.19761/j.1000-4637.2020.07.047.04
文章编号:
基金项目:
国家大学生创新创业训练计划项目(201910759045);兵团中青年科技创新领军人才计划项目(2019CB023);兵团重大科技计划项目(2020AA002)。
作者:
生兆亮1,夏多田1,2,程建军1,2,辛 欣1,李景贤3,丁录胜3
单位:
1.石河子大学 水利建筑工程学院,832003;2.新疆兵团高烈度寒区建筑抗震节能技术工程实验室,石河子 832003;3.新疆铁道勘察设计院有限公司,乌鲁木齐 830011
摘要
摘 要:使用沙漠砂制备了纤维增强水泥基材料,采用正交试验法研究了沙漠砂掺量、粉煤灰掺量、可再分散性乳胶粉掺量、纤维掺量以及水胶比对抗压强度和抗折强度的影响,并确定了最优配合比。采用单因素试验法探讨了石英砂取代沙漠砂对纤维增强水泥基材料力学性能的影响。试验结果表明,纤维掺量是影响沙漠砂纤维增强水泥基材料抗压、抗折强度指标最显著的因素;相比于石英砂,使用沙漠砂制备的纤维增强水泥基材料的抗折强度和劈裂抗拉强度均得到提高,但抗压强度降低。
Abstract: Fiber reinforced cement based materials were prepared from desert sand, and the effects of desert sand content, fly ash content, redispersible latex powder content, fiber content and water-binder ratio on compressive strength and flexural strength of the cement based materials were studied by orthogonal test, and the optimal mix proportion was determined. A single factor test was conducted to discuss the effect of quartz sand instead of desert sand on the mechanical properties of fiber reinforced cement based materials. The results show that the fiber content is the most significant factor affecting the compressive strength and flexural strength of desert sand fiber reinforced cement based materials. Compared with quartz sand, the flexural strength and splitting tensile strength of fiber reinforced cement based materials prepared from desert sand are improved, but the compressive strength decreases.
结论
(1)基于抗压强度最大值的最优配合比为A3B2C3D3E3;基于抗折强度最大值的最优配合比为A3B2C3D4E4。
参考文献
引用本文
生兆亮,夏多田,程建军,等.纤维增强沙漠砂混凝土配合比试验研究[J].混凝土与水泥制品,2020(7):47-50.
SHENG Zhao-liang,XIA Duo-tian,CHENG Jian-jun,et al.Experimental Study on Mix Proportion of Fiber Reinforced Desert Sand Concrete[J].China Concrete and Cement Products,2020(7):47-50.
上一个: 混掺玄武岩纤维与引气剂对混凝土抗冻性能和力学性能的影响
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