浇筑式沥青混凝土在钢桥面上的研究及应用——以贵州鸭池河特大桥钢桥面铺装为例
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摘要
本文依托贵州市鸭池河特大桥钢桥面铺装下面层用浇筑式沥青混凝土GA-10的实体工程,分析了该特大桥钢桥面铺装组合结构,对浇筑式沥青混凝土GA-10的原料进行试验分析,确定最佳沥青用量为7.9%,合成级配为7～11mm∶4～7 mm∶0～4 mm∶矿粉=19∶22∶29∶30时,混合料的各项性能指标均满足设计要求。经过施工现场检测试验证明:该浇筑式沥青混凝土GA-10具有良好的耐久性、防水性、抗疲劳性以及桥板面追从性。
This paper relies on the solid engineering of the gussasphalt concrete GA-10 on the bottom of the steel bridge deck pavement of the Guizhou Yachi River Bridge.This paper analyzes the combined structure of steel bridge deck pavement of the project.The experimental analyzes the raw material of guss-asphalt concrete GA-10,and determines the best asphalt content is 7.9%,and determines the synthetic gradation is: 7 ～ 11 mm: 4 ～ 7mm: 0 ～ 4 mm: mineral powder = 19: 22: 29: 30.At this time,all the performance indexes of the mixture meet the design requirements.After testing in the construction site,it is prove that the guss-asphalt concrete GA-10 has good durability,waterproof,fatigue resistance and the chasing of the bridge surface.
This paper relies on the solid engineering of the gussasphalt concrete GA-10 on the bottom of the steel bridge deck pavement of the Guizhou Yachi River Bridge.This paper analyzes the combined structure of steel bridge deck pavement of the project.The experimental analyzes the raw material of guss-asphalt concrete GA-10,and determines the best asphalt content is 7.9%,and determines the synthetic gradation is: 7 ～ 11 mm: 4 ～ 7mm: 0 ～ 4 mm: mineral powder = 19: 22: 29: 30.At this time,all the performance indexes of the mixture meet the design requirements.After testing in the construction site,it is prove that the guss-asphalt concrete GA-10 has good durability,waterproof,fatigue resistance and the chasing of the bridge surface.
引文
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[2]王敬民,谭志龙,吴士杰,等.浇筑式沥青混凝土在钢桥面铺装中的应用[J].中外公路,2004,24(3):45-48.
[3]吴文军,张华,钱觉时.浇筑式沥青混凝土应用现状综述[J].公路交通科技,2009,26(3):59-62.
[4]郝增恒,张肖宁,盛兴跃,等.高弹性改性沥青在钢桥面铺装中的应用研究[J].公路交通科技,2009,26(4):22-28.
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[7]章登精,朱华平,潘友强.南京四桥钢桥面铺装防水粘结层试验及施工工艺研究[J].世界桥梁,2014,42(4):44-48.
[8]陈馥利,虎见,张蕾.浇筑式沥青混合料配合比设计及施工质量检测[J].西华大学学报(自然科学版),2014,33(6):105-108.
[9]樊叶华.大跨径钢桥面浇筑式沥青混凝土铺装技术研究[D].南京:东南大学,2004.
[10]凌佳香,罗亨文.浇筑式沥青混合料配合比设计及试验研究[J].中外公路,2010,30(4):271-274.
[2]王敬民,谭志龙,吴士杰,等.浇筑式沥青混凝土在钢桥面铺装中的应用[J].中外公路,2004,24(3):45-48.
[3]吴文军,张华,钱觉时.浇筑式沥青混凝土应用现状综述[J].公路交通科技,2009,26(3):59-62.
[4]郝增恒,张肖宁,盛兴跃,等.高弹性改性沥青在钢桥面铺装中的应用研究[J].公路交通科技,2009,26(4):22-28.
[5]潘友强.国产硬质沥青在浇筑式沥青混凝土中的应用研究[D].南京:东南大学,2006.
[6]李昌洲.硬质改性沥青的研制及其路用性能评价[D].重庆:重庆交通大学,2012.
[7]章登精,朱华平,潘友强.南京四桥钢桥面铺装防水粘结层试验及施工工艺研究[J].世界桥梁,2014,42(4):44-48.
[8]陈馥利,虎见,张蕾.浇筑式沥青混合料配合比设计及施工质量检测[J].西华大学学报(自然科学版),2014,33(6):105-108.
[9]樊叶华.大跨径钢桥面浇筑式沥青混凝土铺装技术研究[D].南京:东南大学,2004.
[10]凌佳香,罗亨文.浇筑式沥青混合料配合比设计及试验研究[J].中外公路,2010,30(4):271-274.