废旧轮胎胶粉混凝土的路用性能试验研究

发布时间：2018-04-29 14:25

本文选题：水泥混凝土 + 胶粉　；参考：《混凝土》2014年10期

【摘要】：废旧轮胎回收加工成橡胶粉应用于水泥混凝土改性,不单能减少污染,对发展循环经济也十分有利。针对废旧轮胎胶粉混凝土的路用问题,采用60、80、100和120目4种细度的胶粉分别按照0%、10%、15%、20%、25%和30%的掺量,配制24组胶粉混凝土,分别测试其强度、韧性、抗裂、抗冻以及抗渗等性能。结果表明:胶粉混凝土的强度随胶粉掺量、细度的增加而降低,但对掺量的敏感性更高;胶粉的加入对改善混凝土韧性、抗裂性和抗渗性均有积极意义,且作用随掺量的增加愈加明显,但抗冻能力随胶粉掺量的增加先提高再降低;细度为60~120目的胶粉最佳掺量为15%左右。
[Abstract]:The recycling of waste tires into rubber powder used in cement concrete modification not only can reduce pollution, but also is very beneficial to the development of circular economy. In view of the road use problem of waste tire rubber powder concrete, four kinds of fine rubber powder of 60 ~ 80100 mesh and 120 mesh are used to prepare 24 groups of rubber powder concrete according to the quantity of 25% and 30% respectively, and the strength, toughness, crack resistance, frost resistance and impermeability are tested respectively. The results show that the strength of concrete decreases with the increase of powder content and fineness, but the sensitivity to the content is higher, and the addition of rubber powder has positive significance to improve the toughness, crack resistance and impermeability of concrete. The effect is more obvious with the increase of the content of rubber powder, but the anti-freezing ability increases first and then decreases with the increase of the content of rubber powder, and the optimum content of rubber powder is about 15% when the fineness is 60 ~ 120.
【作者单位】：山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室;山西省交通科学研究院山西省黄土地区公路建设与养护技术重点实验室;山西水利职业技术学院道路与桥梁工程系;
【基金】：国家自然科学基金项目(51308329) 山西省自然科学基金项目(2013011027-1) 山西省交通厅科技项目(2013-1-10)
【分类号】：U414

【参考文献】