橡胶粉-环氧树脂砂浆抗冻性能的试验研究
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摘要
研究了40目和80目橡胶粉等质量取代天然砂,复掺环氧树脂制备砂浆的抗冻性能。正交试验结果表明:环氧树脂和橡胶粉均有利于提高砂浆的抗冻性能;环氧树脂能明显减小低冻融循环次数时砂浆的质量损失;橡胶粉在冻融循环次数大于50次后开始发挥作用,80目橡胶粉对砂浆抗冻性能提高作用优于40目。40、80目橡胶粉的最佳掺量均为3%,环氧树脂的最佳掺量为5%。
The frost resistance property of mortar is investigated systematically that the natural sand is alternated by the same mass of 40 mesh and 80 mesh waste tire rubber powder and the influence of epoxy resin is considered. Orthogonal test results show that the epoxy resin and rubber powder can improve the frost resistance of mortar. Epoxy resin can significantly reduce the mass loss of mortar in low times of freeze-thaw cycles. Rubber powder began to function after more than 50 freeze-thaw cycles.To improve the frost resistance property of mortar,80 mesh rubber powder is better than 40 mesh. The optimum mixing of each component are add 3% 80 mesh rubber powder,3% 40 mesh rubber powder and 5% epoxy resin.
The frost resistance property of mortar is investigated systematically that the natural sand is alternated by the same mass of 40 mesh and 80 mesh waste tire rubber powder and the influence of epoxy resin is considered. Orthogonal test results show that the epoxy resin and rubber powder can improve the frost resistance of mortar. Epoxy resin can significantly reduce the mass loss of mortar in low times of freeze-thaw cycles. Rubber powder began to function after more than 50 freeze-thaw cycles.To improve the frost resistance property of mortar,80 mesh rubber powder is better than 40 mesh. The optimum mixing of each component are add 3% 80 mesh rubber powder,3% 40 mesh rubber powder and 5% epoxy resin.
引文
[1] Diaconescu R-M,Barbutab M,Harja M.Prediction of properties of polymer concrete composite with tire rubber usingneural networks[J].Materials Science and Engineering,2013,178:1259-1267.
[2]张圣彩,耿欧,张如君.废轮胎橡胶粉陶粒混凝土墙板受力性能试验研究[J].工业建筑,2017,46(9):93-97.
[3]张亚梅,赵志远,陈胜霞,等.橡胶粉对混凝土在水和NaCl溶液中抗冻性的影响[J].东南大学学报(自然科学版),2006,36(Z):248-252.
[4]王涛,洪锦祥,缪昌文,等.橡胶混凝土的试验研究[J].混凝土,2009(1):67-69.
[5]杨洪生,王帅,赵庆新.橡胶粉改性再生骨料混凝土抗冻性研究[J].土木建筑与环境工程,2012,34(Z):130-134.
[6]陈胜霞,张亚梅,罗天岚,等.橡胶颗粒细度、掺量及成型工艺对橡胶混凝土抗冻性能的影响[J].工业工程,2013,43(Z):617-621.
[7]许金余,李赞成,罗鑫.橡胶混凝土抗冻性的对比研究[J].硅酸盐通报,2014,33(4):800-805.
[8]路沙沙,麻凤海,邓飞.橡胶颗粒掺量、粒径影响橡胶混凝土性能的试验分析[J].硅酸盐通报,2014,33(10):2477-2483.
[2]张圣彩,耿欧,张如君.废轮胎橡胶粉陶粒混凝土墙板受力性能试验研究[J].工业建筑,2017,46(9):93-97.
[3]张亚梅,赵志远,陈胜霞,等.橡胶粉对混凝土在水和NaCl溶液中抗冻性的影响[J].东南大学学报(自然科学版),2006,36(Z):248-252.
[4]王涛,洪锦祥,缪昌文,等.橡胶混凝土的试验研究[J].混凝土,2009(1):67-69.
[5]杨洪生,王帅,赵庆新.橡胶粉改性再生骨料混凝土抗冻性研究[J].土木建筑与环境工程,2012,34(Z):130-134.
[6]陈胜霞,张亚梅,罗天岚,等.橡胶颗粒细度、掺量及成型工艺对橡胶混凝土抗冻性能的影响[J].工业工程,2013,43(Z):617-621.
[7]许金余,李赞成,罗鑫.橡胶混凝土抗冻性的对比研究[J].硅酸盐通报,2014,33(4):800-805.
[8]路沙沙,麻凤海,邓飞.橡胶颗粒掺量、粒径影响橡胶混凝土性能的试验分析[J].硅酸盐通报,2014,33(10):2477-2483.