| 高掺量聚丙烯纤维自密实混凝土制备及其性能研究 |
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| 引用本文： | 周玲珠,罗远彬,郑愚,张黎飞,杨健彬.高掺量聚丙烯纤维自密实混凝土制备及其性能研究[J].硅酸盐通报,2017,36(12):3971-3977. |
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| 作者姓名： | 周玲珠 罗远彬 郑愚 张黎飞 杨健彬 |
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| 作者单位： | 华南理工大学,广州 510640;东莞理工学院,东莞 523808;哈尔滨工业大学(深圳),深圳,518055;东莞理工学院,东莞,523808 |
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| 基金项目： | 国家自然科学基金(51678149)%2015广东省普通高校国际暨港澳台合作创新平台及国际合作重大项目(自然科学)-特色创新项目(2015KTSCX141)%广东省科技计划-公益研究与能力建设方向(2016A010103045) |
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| 摘 要： | 为了有效提高高掺量聚丙烯纤维自密实混凝土的工作性能,将调整水胶比和砂率进行配制聚丙烯纤维体积掺量为0.5％的自密实混凝土并对其材料性能进行试验研究.研究表明:高掺量聚丙烯纤维的掺入对自密实混凝土的流动性有较大影响,适当调整水胶比和砂率可配制满足工作性能要求的高掺量聚丙烯纤维自密实混凝土;水胶比的增大提高了高掺量聚丙烯纤维自密实混凝土的扩展度,同时也提高了其离析的风险,降低了其抗压强度;砂率的增大对高掺量聚丙烯纤维自密实混凝土的抗压强度基本没有影响,但可提高其拌合物的粘聚性.
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| 关 键 词： | 高掺量聚丙烯纤维 自密实混凝土 抗压强度 工作性能 |
Preparation and Behaviour of Self-Compacting Concrete with High Volume of Polypropylene Fiber |
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| ZHOU Ling-zhu,LUO Yuan-bin,ZHENG Yu,ZHANG Li-fei,YANG Jian-bin.Preparation and Behaviour of Self-Compacting Concrete with High Volume of Polypropylene Fiber[J].Bulletin of the Chinese Ceramic Society,2017,36(12):3971-3977. |
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| Authors: | ZHOU Ling-zhu LUO Yuan-bin ZHENG Yu ZHANG Li-fei YANG Jian-bin |
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| Abstract: | To improve the workability and behaviour of self-compacting concrete with high volume polypropylene fiber , an experimental study of preparation and material properties of self-compacting concrete with the addition of 0 .5％polypropylene fiber by varying the water to binder ratio and sand ratio was displayed .The results show that the incorporation of high volume polypropylene fibers has adverse influence on the fluidity of self-compacting concrete , and the water to binder ratio and sand ratio can be adjusted to meet the workability of self-compacting concrete with high volume polypropylene fiber; The increase of water to binder ratio improves the expansibility of self-compacting concrete with high volume polypropylene fiber , but also increases the risk of segregation and reduces the compressive strength of self-compacting concrete with high volume polypropylene fiber; The increase of the sand rate has little effect on the compressive strength and can improve the cohesion of mixture of self-compacting concrete with high volume of polypropylene fiber . |
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| Keywords: | high volume polypropylene fiber self-compacting concrete compressive strength workability |
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