| 板式轨道用高弹模水泥沥青砂浆与混凝土黏结性能的试验研究 |
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| 引用本文： | 元强,郭建光,邓德华,谢友均,王世雄,曾志平.板式轨道用高弹模水泥沥青砂浆与混凝土黏结性能的试验研究[J].长沙铁道学院学报,2013(6):40-44. |
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| 作者姓名： | 元强 郭建光 邓德华 谢友均 王世雄 曾志平 |
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| 作者单位： | [1]中南大学土木工程学院,湖南长沙410075 [2]高速铁路建造技术国家工程实验室,湖南长沙410075 [3]沪昆铁路客运专线江西公司,江西南昌330000 |
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| 基金项目： | 铁道部科技司重点课题（2012G008-C） |
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| 摘 要： | 采用一种直接拉伸法试验研究了水泥乳化沥青砂浆与支承层混凝土（C15）、底座板混凝土（C30）和轨道板蒸养混凝土（C55）的黏结强度及其影响因素。试验结果表明：砂浆配合比（用水量）对砂浆与轨道板蒸养混凝土、底座板混凝土及支承层混凝土的黏结强度影响很小；混凝土表面拉毛显著提高了黏结强度；板腔的润湿状态对砂浆充填层与混凝土的黏结力影响很大；黏结强度随龄期增加而增加，在7d龄期时已基本达到最大值。
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| 关 键 词： | 水泥沥青砂浆 CRTS II型板式轨道结构 黏结强度 混凝土 |
Experimental study on the bonding strength between high modulus cement emulsified asphalt for slab track and concrete |
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| YUAN Qiang GUO Jianguang,DENG Dehua,XIE Youjun,WANG Shixiong,ZENG Zhiping.Experimental study on the bonding strength between high modulus cement emulsified asphalt for slab track and concrete[J].Journal of Changsha Railway University,2013(6):40-44. |
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| Authors: | YUAN Qiang GUO Jianguang DENG Dehua XIE Youjun WANG Shixiong ZENG Zhiping |
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| Institution: | 1. School of Civil Engineering, Central South Unviersity, Changsha 410075, China; 2. National Engineering Laboratory for Construction of High Speed Railway, Changsha 410075, China; 3. Hu- Kun Railway PDL Jiangxi Co. Ltd. , Nanehang 330000, China) |
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| Abstract: | The bonding strength between （ C 15 in supporting layer, C30 in base CA mortar and different strength grades plate, and C55 steamed in track slab） of concrete in different positions and their affecting factors were studied by using direct tensile tests. The results show that mix proportion of CA mortar（ water content） has minor effect on the bonding strength in above locations. Rough handling significantly increases bonding strength, and the wetness of the concrete chamber dramatically affects the bonding strength of filling layers and concrete. Meanwhile, bonding strength increases with the age, and reaches its maximum value at the age of 7 d. |
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| Keywords: | CA mortar CRTS II slab ballastless track bonding strength concrete |
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