| 合成纤维混凝土楼板中长期非荷载抗裂性能 |
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| 引用本文： | 张玉新.合成纤维混凝土楼板中长期非荷载抗裂性能[J].广西大学学报(自然科学版),2010,35(1). |
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| 作者姓名： | 张玉新 |
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| 作者单位： | 广西大学土木建筑工程学院,广西,南宁,530004 |
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| 基金项目： | 国家自然科学基金资助项目(90815001);;广西教育厅科研项目(2006JC33) |
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| 摘 要： | 为了探讨解决现浇混凝土楼板中长期非荷载抗裂性的难题,对聚丙烯纤维混凝土的平板进行了中长期抗裂试验,研究聚丙烯纤维对提高混凝土中长期抗裂、抗渗等耐久性能的效果和机理,通过实际工程的应用进一步验证了聚丙烯纤维对混凝土裂缝有较好的抑制作用。研究结果表明,聚丙烯纤维对混凝土中长期裂缝有较好的抑制作用;聚丙烯纤维能有效改善混凝土的抗渗性能;聚丙烯纤维使混凝土的抗拉强度、拉伸极限应变、临界断裂时的最大裂缝宽度增加。使用聚丙烯纤维混凝土楼板具有较显著的经济效益和社会效益。
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| 关 键 词： | 聚丙烯纤维 现浇混凝土楼板 非荷载抗裂性能 |
Mid-long term non-load cracking properties of synthetic fiber-reinforced concrete floor |
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| ZHANG Yu-xin.Mid-long term non-load cracking properties of synthetic fiber-reinforced concrete floor[J].Journal of Guangxi University(Natural Science Edition),2010,35(1). |
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| Authors: | ZHANG Yu-xin |
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| Institution: | College of Civil and Architecture Engineering;Guangxi University;Nanning 530004;China |
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| Abstract: | In order to find a solution to the problem of mid-long term non-load crack resistance of cast-in-place concrete floor and study the effects and formation mechanism of concrete mid-long term crack and permeation resistance improved by the polypropylene fiber,the experimental analysis on slab mid-long crack resistance of polypropylene fiber reinforced concrete is carried out. The application of the research findings to practical engineering has proved the outstanding crack resistance effects of the polypropyl... |
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| Keywords: | polypropylene fiber cast-in-place concrete floor non-load crack resistance |
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