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| 界面改性对混凝土路用性能的影响 | |
| 引用本文： | 马飞,孙家瑛,等.界面改性对混凝土路用性能的影响[J].建筑材料学报,2001,4(4):351-355. |
| 作者姓名： | 马飞 孙家瑛 |
| 作者单位： | 1. 宁波市市政管理处, 2. 上海市市政工程研究院, 3. 上海市卢湾市政工程有限公司, 4. 同济大学 |
| 摘 要： | 研究了混凝土中界面改性对混凝土路用性能的影响，结果表明：硅灰裹石掺掺合料法可使水泥石－集料界面粘结强度大幅度提高，而水泥石结构致密程度则适当降低，从而使混凝土细观结构达到平衡状态，抗折强度比双掺硅灰，粉煤灰的高强度混凝土提高10％左右，脆度系数降低35％，耐磨性提高15％以上。 |
| 关 键 词： | 界面粘结强度 水泥混凝土 脆度 道路工程 抗折强度 耐磨 |
| 文章编号： | 1007-9629(2001)04-0351-05 |
| 修稿时间： | 2001年3月6日 |
Effect of Modification of Interfacial Structure on Road Properties of concrete |
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| MA Fei,SUN Jia ying,ZHANG Yi jun,CHEN Zhi yuan.Effect of Modification of Interfacial Structure on Road Properties of concrete[J].Journal of Building Materials,2001,4(4):351-355. | |
| Authors: | MA Fei SUN Jia ying ZHANG Yi jun CHEN Zhi yuan |
| Affiliation: | MA Fei 1,SUN Jia ying 2,ZHANG Yi jun 3,CHEN Zhi yuan 4 |
| Abstract: | The effect of the modification of interfacial structure on road properties of concrete was studied. The results showed that the concrete in which the aggregate is enveloped by silica fume and admixing admixtures (SF and/or FA) are mixed in cement paste, can enhance the interfacial bond splitting strength greatly, while the densification of bulk paste is somewhat reduced. It makes the microstructure of concrete homogenize. The flexural strength of concrete by enveloping silica fume and admixing admixture on aggregate can be increased by 10%, brittleness coefficient can be decreased by 35% and abrasion resistance can be enhanced above 15%. |
| Keywords: | interfacial bond strength road properties brittleness flexural strength abrasion resistance |
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