高粘高弹防水粘结应力吸收层性能研究
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摘要
为了研究高粘高弹防水粘结应力吸收层性能,通过应用室内剪切试验和拉拔试验研究了碎石粒径、沥青洒铺量和碎石洒铺量对防水粘结应力吸收层粘结性能的影响,并对比了高粘高弹防水粘结应力吸收层与橡胶沥青应力吸收层和SBS改性沥青粘结层的粘结效果。研究结果表明:碎石洒铺粒径为9.5mm～13.2mm,碎石洒布量为16kg/m~2,高粘高弹改性沥青洒铺量为2.0kg/m~2,防水粘结应力吸收层具有最为优良的剪切强度和拉拔强度,其粘结性能、防水性能和疲劳性能都优于橡胶沥青应力吸收层和SBS改性沥青粘结层。
In order to study the performance of high-viscous and high-elastic waterproof bonding stress absorbing layer, the effects of gravel particle size, asphalt spraying amount and gravel spraying amount on the bonding performance of waterproof bonding stress absorbing layer were studied by indoor shear test and pull-out test, and the bonding effects of high-viscous and high-elastic waterproof bonding stress absorbing layer with rubber asphalt stress absorbing layer and SBS modified asphalt bonding layer were compared. The size of gravel spraying is 9.5 mm～13.2 mm, the amount of gravel spraying is 16 kg/m~2, the amount of high viscous and high elastic modified asphalt spraying is 2.0 kg/m~2, and the waterproof bonding stress absorbing layer has the best shear strength and pull-out strength. Its bonding performance, waterproof performance and fatigue performance are superior to those of rubber asphalt stress absorbing layer and SBS modified asphalt bonding layer.
In order to study the performance of high-viscous and high-elastic waterproof bonding stress absorbing layer, the effects of gravel particle size, asphalt spraying amount and gravel spraying amount on the bonding performance of waterproof bonding stress absorbing layer were studied by indoor shear test and pull-out test, and the bonding effects of high-viscous and high-elastic waterproof bonding stress absorbing layer with rubber asphalt stress absorbing layer and SBS modified asphalt bonding layer were compared. The size of gravel spraying is 9.5 mm～13.2 mm, the amount of gravel spraying is 16 kg/m~2, the amount of high viscous and high elastic modified asphalt spraying is 2.0 kg/m~2, and the waterproof bonding stress absorbing layer has the best shear strength and pull-out strength. Its bonding performance, waterproof performance and fatigue performance are superior to those of rubber asphalt stress absorbing layer and SBS modified asphalt bonding layer.
引文
[1]胡曙光,李潜,孙政,等.基于防水黏结应力吸收层的高黏高弹改性沥青的研制与性能研究[J].公路,2010,(02):134-137.
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[9]陈磊磊,钱振东,王建伟,等.武汉天兴洲公铁两用长江大桥钢桥面环氧沥青混凝土铺装设计与施工[J].桥梁建设,2011,(01):79-82.
[10]钱振东,王江洋,王亚奇.水泥混凝土桥梁长寿命桥面铺装层复合结构疲劳特性[J].中国公路学报,2012,25(5):67-73.
[2]庞海峰,应荣华.高粘沥青在桥面防水粘结层中的应用研究[J].公路工程,2009,34(5):130-132.
[3]李志栋.混凝土桥面碎石防水粘结层配比优化设计[J].中外公路,2012,32(02):215-219.
[4]李潜.基于防水粘结应力吸收的桥面铺装技术研究[D].武汉:武汉理工大学:2010.
[5]李小重,范要武,黄晓明.水泥混凝土桥面铺装防水粘结层的分析与设计[J].中外公路,2006,26(01):151-154.
[6]宋建宁.不同水泥混凝土桥面防水粘结层材料试验研究[J].城市道桥与防洪.2013,(08):321-324.
[7]张嘉林,孟丛,陈京钰,等.鄱阳湖大桥沥青混凝土桥面铺装防水粘结层材料设计[J].中外公路. 2012,32(01):230-233.
[8]蒋维祥,魏为成.水泥混凝土桥面防水粘结层研究综述[J].公路交通技术,2007,(09):87-90.
[9]陈磊磊,钱振东,王建伟,等.武汉天兴洲公铁两用长江大桥钢桥面环氧沥青混凝土铺装设计与施工[J].桥梁建设,2011,(01):79-82.
[10]钱振东,王江洋,王亚奇.水泥混凝土桥梁长寿命桥面铺装层复合结构疲劳特性[J].中国公路学报,2012,25(5):67-73.