| 超早强修补水泥混凝土早强机理研究 |
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| 引用本文： | 李炜光,孙己龙,陈栓发.超早强修补水泥混凝土早强机理研究[J].公路交通科技,2004,21(6):31-34. |
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| 作者姓名： | 李炜光 孙己龙 陈栓发 |
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| 作者单位： | 1. 长安大学,教育部特殊地区公路工程重点实验室,陕西,西安,710064
2. 陕西省交通厅质监站,陕西,西安,710064 |
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| 摘 要： | 通过室内试验测试并分析了修补混凝土强度增长、收缩特性、新旧混凝土粘结强度等技术性能,并采用热重分析探讨了混凝土早强机理。结果表明,超早强系列修补混凝土能够满足6h通车要求,并且具有早期强度高、后期强度增长稳定无衰减、干缩及温缩性好、新旧断面粘结强度高等优点;差热分析表明,修补剂的加入减少了氢氧化钙晶体数量,提高了修补混凝土的早期强度。最终试验路的4年成功应用验证了室内研究成果。
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| 关 键 词： | 公路工程 水泥混凝土路面 HW型超早强修补剂 快速修补技术 热重分析 |
| 文章编号： | 1002-0268(2004)06-0031-04 |
| 修稿时间： | 2003年12月17 |
Study on Early Strength Concrete Mechanism in Concrete Pavement Repair |
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| LI Wei-guang,SUN Ji-long,CHEN Shuan-fa.Study on Early Strength Concrete Mechanism in Concrete Pavement Repair[J].Journal of Highway and Transportation Research and Development,2004,21(6):31-34. |
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| Authors: | LI Wei-guang SUN Ji-long CHEN Shuan-fa |
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| Institution: | LI Wei-guang~1,SUN Ji-long~2,CHEN Shuan-fa~1 |
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| Abstract: | This paper presents a series indoor tests and analysis of cement concrete performance, such as strength increase-adhere strength between new and old concrete-shrinkage peculiarity ;and studied temperature-weight-analysis.The test result shows that mending-concrete can meet the requirement of open to traffic in 6 hours, and it also has good-performance in dry and heat shrinkage,high bond strength between new and old concrete section,and that the input of mending-agent increases the percent of Ca(OH)\-2in concrete.At last, the 4 years good performance in test-road underpins the result of the in door test of the mend concrete (HW serials). |
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| Keywords: | Highway-engineering Concrete pavement Super early strength agent Rapid mend skill Temperature weight analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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