掺纤维材料地聚合物力学性能研究
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摘要
为了改善偏高岭土基地聚合物的的力学性能,在制备过程中添加不同种类以及不同掺量的纤维,养护至一定周期后,分别进行力学实验测试。试验数据表明,在一定的纤维掺量范围内,地聚合物的抗压强度以及抗折强度存在较好的改性效果,在本次试验中1.5%掺量的碳纤维改性效果最佳。
In order to improve the mechanical properties of the metakaolin base polymer,different types and different amounts of fiber are added during the preparation process,and after curing for a certain period,mechanical experiments are carried out separately.The test data show that the compressive strength and flexural strength of the geopolymer have a good modification effect within a certain range of fiber content.In this test,the modification effect of 1.5%carbon fiber is the best.
In order to improve the mechanical properties of the metakaolin base polymer,different types and different amounts of fiber are added during the preparation process,and after curing for a certain period,mechanical experiments are carried out separately.The test data show that the compressive strength and flexural strength of the geopolymer have a good modification effect within a certain range of fiber content.In this test,the modification effect of 1.5%carbon fiber is the best.
引文
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[21]朱靖塞,许金余,罗鑫,等.碳纤维增强地聚物混凝土韧性评价指标的对比研究[J].建筑材料学报,2014,17(2):303-308.
[2] 郭正超,宋坪恒,李健平,等.纤维对地聚合物抗压强度的影响研究[J].硅酸盐通报,2017,36(9):3155-3158.
[3] 郭晓潞,伍亮,施惠生.地聚合物耐久性能研究进展及改善途径[J].功能材料,2017,48(10):10046-10054.
[4] 黄彩菊.纤维对地聚合物抗压强度的影响及机理分析[D].杭州:浙江工业大学,2011.
[5] 张大旺,王栋民.地质聚合物混凝土研究现状[J].材料导报,2018,32(9):1519-1527,1540
[6] 阚黎黎,段贝贝,闫涛.高延性纤维增强偏高岭土-粉煤灰基地聚合物在不同环境下的自愈合性能[J].复合材料学报,2018,35(10):2841-2850.
[7] 马芹永,高常辉.冲击荷载下玄武岩纤维水泥土吸能及分形特征[J].岩土力学,2018,39(11):3921-3928,3968.
[8] 贾兴文,司端科,张新,等.碳纤维增强磷酸镁水泥砂浆的力学性能研究[J].材料导报,2016,30(22):138-142.
[9] AAMER Bhutta,BORGES P H R,ZANOTTI C,et al.Flexural behavior of geopolymer composites reinforced with steel and polypropylene macro fibers[J].Cement and Concrete Composites,2017:80.
[10]SHAIKH F U A.Review of mechanical properties of short fibre reinforced geopolymer composites[J].Construction and Building Materials,2013,43.
[11]COLLINS F,SANJAYAN J G.Effect of pore size distribution on drying shrinking of alkali-activated slag concrete[J].Cement and Concrete Research,2000,30(9).
[12]陈仕国,王群英,应光伟,等.NaOH掺量对固硫灰基地质聚合物强度影响研究[J].硅酸盐通报,2016,35(10):3362-3366,3372.
[13]李健.PVA纤维和减缩剂对偏高岭土混凝土干燥收缩的影响[J].长沙铁道学院学报(社会科学版),2013,14(3):219-221.
[14]欧阳利军,许峰,陆洲导.玄武岩纤维布增强树脂基复合材料约束高温损伤混凝土轴压力学性能[J].复合材料学报,2018,35(8):2002-2013.
[15]于泳,朱涵,朱学超,等.玄武岩纤维混凝土抗冲击性能研究[J].建筑结构学报,2015,36(增2):354-358.
[16]钟世云.纤维对聚合物改性砂浆表面水分蒸发的影响[J].建筑材料学报,2010,13(6):728-732.
[17]郑德路.聚乙烯醇纤维水泥基复合材料抗冲击性能试验研究[D].呼和浩特:内蒙古工业大学,2013.
[18]贺亚飞.掺聚乙烯醇(PVA)纤维水泥稳定碎石的力学及抗裂性能研究[D].重庆:重庆交通大学,2016.
[19]代小兵.纳米粒子和PVA纤维增强水泥基复合材料耐久性能研究[D].郑州:郑州大学,2017.
[20]王毓发,崔鑫,王龙志,等.苯丙乳液与PVA纤维对水泥砂浆力学性能的影响及增强机理研究[J].材料导报,2013,27(增2):307-310.
[21]朱靖塞,许金余,罗鑫,等.碳纤维增强地聚物混凝土韧性评价指标的对比研究[J].建筑材料学报,2014,17(2):303-308.