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| 密水透气环氧沥青混合料配合比设计研究 | |
| 引用本文： | 曾利文,王中文,张肖宁.密水透气环氧沥青混合料配合比设计研究[J].公路交通技术,2012(4):32-36. |
| 作者姓名： | 曾利文 王中文 张肖宁 |
| 作者单位： | 1. 广东省长大公路工程有限公司,广州510620;华南理工大学道路工程研究所,广州510640 2. 广东省长大公路工程有限公司,广州,510620 3. 华南理工大学道路工程研究所,广州,510640 |
| 基金项目： | 广东省交通科技基金（2011-02-020） |
| 摘 要： | 国内外大跨径钢桥面和混凝土桥面的环氧沥青铺装过分强调配合比的密水性,导致铺装层内水分挥发不出去,经过夏季高温气化后形成早期"鼓泡"病害。用马歇尔试验确定最佳油石比,在可控范围内通过调整油石比来调整混合料的孔隙率,进行不同孔隙率混合料的"密水透气"性试验,用自行开发的试验设备,找出混合料"密水透气"空隙率区间,开发无"鼓泡"现象环氧沥青混合料配合比,解决早期"鼓泡"病害。研究成果在虎门大桥钢桥面维修铺装施工中得到应用和验证。 |
| 关 键 词： | 密水透气 环氧沥青混合料 无鼓泡 配合比 设计 |
Design Research on Mix Proportion of Watertight and Air Permeable Epoxy Asphalt Mixtures |
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| ZENG Liwen , WANG Zhongwen , ZHANG Xiaoning.Design Research on Mix Proportion of Watertight and Air Permeable Epoxy Asphalt Mixtures[J].Technology of Highway and Transport,2012(4):32-36. | |
| Authors: | ZENG Liwen WANG Zhongwen ZHANG Xiaoning |
| Abstract: | For large-span steel and concrete bridge decks at home and abroad,excessive emphasis on water tightness of the mix proportion during pavement of epoxy asphalt causes non-volatile moisture inside the pavements and earlier＂bubble＂ disease after gasification at high temperature in summer.This paper determines the optimal asphalt aggregate ratio by means of Marshall Test and adjusts porosity factors of mixtures by adjusting asphalt aggregate ratio in controllable range to perform the ＂watertight and air permeable＂ test for mixtures with different porosity factors.With self-development test equipment,the paper finds out the ＂watertight and air permeable＂ interval of porosity factors of mixtures and develops mix ratio of epoxy asphalt mixtures without ＂bubble＂ phenomenon to remove earlier ＂bubble＂ disease.The results of research are applied and verified in construction of repairing pavement of steel deck of Humen Bridge. |
| Keywords: | watertight and air permeable epoxy asphalt mixture no bubble mix ratio design |
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