| 短切芳纶纤维增强水泥砂浆准静态下力学性能研究 |
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| 引用本文： | 胡海涛,李妮,熊杰.短切芳纶纤维增强水泥砂浆准静态下力学性能研究[J].浙江理工大学学报,2011,28(4). |
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| 作者姓名： | 胡海涛 李妮 熊杰 |
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| 作者单位： | 浙江理工大学先进纺织材料与制备技术教育部重点实验室,杭州,310018 |
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| 摘 要： | 采用二步法制备不同纤维掺量的短切芳纶纤维增强水泥砂浆试样,研究添加剂羧甲基纤维素钠(CMC)和硅微粉对复合材料力学性能的影响.结果表明:羧甲基纤维素钠能够有效地促进纤维在水中的分散,进而促进其在水泥砂浆中的分散；掺加一定量的硅微粉能够进一步提高试样的压缩强度.当纤维体积分数为5％时,试样的力学性能最好,弯曲强度从2.6 MPa提高到了8.3 MPa,压缩强度也从29.5 MPa提高到了54.3 MPa.
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| 关 键 词： | 纤维增强水泥砂浆复合材料 芳纶纤维 外加剂 弯曲强度 压缩强度 |
Research on Quasi-static Mechanical Properties of Short Cut Aramid Fiber-Reinforced Cement Mortar |
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| HU Hai-tao,LI Ni,XIONG Jie.Research on Quasi-static Mechanical Properties of Short Cut Aramid Fiber-Reinforced Cement Mortar[J].Journal of Zhejiang Sci-tech University,2011,28(4). |
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| Authors: | HU Hai-tao LI Ni XIONG Jie |
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| Affiliation: | HU Hai-tao,LI Ni,XIONG Jie(The Key Laboratory of Advanced Textile Materials and Manufacturing Technology(Zhejiang Sci-Tech University),Ministry of Education,Hangzhou 310018,China) |
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| Abstract: | Cement mortar reinforced with different volume fraction of aramid fiber is prepared by two-step dispersions of aramid fibers,the mechanical properties of composites materials are researched when adds cement additives sodium carboxymethylcellulose(CMC) and silicon powder.Result shows that sodium carboxymethylcellulose can improve fibers dispersion effectively.Silicon powder can improve samples' compression strength.The samples' bending strength is increased from 2.6 MPa to 8.3 MPa,and the compression strengt... |
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| Keywords: | fiber reinforced cement mortar composites aramid fiber cement additive bending strength compression strength |
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