| 张秋瑞,刘亚敏,韩森,夏金平,杨振,梁建.高黏乳化沥青层间黏结材料设计与性能研究[J].,2021,61(1):76-83 |
| 高黏乳化沥青层间黏结材料设计与性能研究 |
| Research on design and performance of inter layer bonding material of high viscosity emulsified asphalt |
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| DOI：10.7511/dllgxb202101011 |
| 中文关键词: 高黏乳化沥青 层间黏结材料 黏结性能 最佳用量 |
| 英文关键词: high viscosity emulsified asphalt inter layer bonding material bonding performance optimal dosage |
| 基金项目:国家自然科学基金资助项目(51608048)；陕西省交通科技项目(1929K)；中央高校基本科研业务费专项资金资助项目(300102219207). |
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| 中文摘要: |
| 针对层间黏结材料黏结效果差、耐久性不足的问题，提出一种新的高黏乳化沥青作为层间黏结材料并对其性能进行了研究．首先，采用二次热混合法制备高黏乳化沥青，并与水性环氧改性乳化沥青和SBR改性乳化沥青进行筛上剩余量、蒸发残留物三大指标、黏度等试验；其次，在上面层同为UTFL-13沥青混合料，下面层分别是AC-13、AC-10沥青混凝土和水泥混凝土及25 ℃、60 ℃的温度条件下进行层间拉拔试验和直接剪切试验．结果表明，相比于其他两种改性乳化沥青，高黏乳化沥青的耐热性和塑性更好，黏度更高；黏结效果排序为高黏乳化沥青＞SBR改性乳化沥青＞水性环氧改性乳化沥青；下面层所用材料不同，层间黏结材料的最佳用量不同． |
| 英文摘要: |
| In order to solve the problem of poor viscous effect and durability of inter layer bonding material, a new high viscosity emulsified asphalt was prepared and its performance was studied. Firstly, the high viscosity emulsified asphalt was prepared by the secondary thermal mixing method, and tested with water based epoxy modified emulsified asphalt and SBR modified emulsified asphalt on the screened remaining amount, three indicators of evaporation residue, viscosity, etc. Secondly, the pull out test and direct shear test were carried out under the condition that the upper layer was UTFL-13, the lower layer were AC-13, AC-10 asphalt concrete slab and cement concrete slab, and the temperature were 25 ℃ and 60 ℃ respectively. The results show that, compared with other two modified emulsified asphalt, the high viscosity emulsified asphalt has better heat resistance and plasticity, and higher viscosity. The bonding effect sequence is high viscosity emulsified asphalt, SBR modified emulsified asphalt, water based epoxy modified emulsified asphalt. The material used in the lower layer is different, the optimal amount of inter layer bonding material is different. |
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