| 预处理方式对橡胶混凝土耐久性影响 |
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| 引用本文： | 陈怡宏,杨凯,曾凡贵,张意. 预处理方式对橡胶混凝土耐久性影响[J]. 重庆建筑, 2016, 0(3): 31-34. DOI: 10.3969/j.issn.1671-9107.2016.03.031 |
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| 作者姓名： | 陈怡宏 杨凯 曾凡贵 张意 |
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| 作者单位： | 1. 重庆建工住宅建设有限公司,重庆,400015;2. 重庆大学 材料学院,重庆,400030 |
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| 摘 要： | 该文研究了不同水胶比条件下,NaOH预处理方式和橡胶掺量对混凝土吸水性、干燥收缩及抗冻性能的影响。结果表明:相比于未处理橡胶,掺入NaOH改性橡胶的混凝土具有更低吸水率和干燥收缩率,且提升混凝土的抗冻性能。此外,NaOH预处理橡胶对高水胶比混凝土提升效果优于低水胶比混凝土,这意味着改性橡胶对混凝土性能影响取决于水胶比。
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| 关 键 词： | 橡胶混凝土 预处理 吸水性 毛细孔隙率 抗冻性 |
Impact of Pretreatment Methods on Durability of Rubberized Concrete |
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| Abstract: | This paper studies the impact of NaOH pretreatment method and rubber volume on concrete sorptivity, drying shrinkage and frost resistance. The study indicates that the concrete with NaOH-pretreated rubber,compared with the original concrete, has lower sorptivity and drying shrinkage and improved frost resistance. Besides, It also shows that the effect of NaOH-pretreated rubber is superior on concrete of high water-binder ratio than that of low water-binder ratio, which means the impact of improved rubber on concrete performance depends on water-binder ratio. |
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| Keywords: | rubberized concrete pretreatment sorptivity porosity frost resistance |
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