钢桥面铺装防水粘结层性能研究
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摘要
为研究钢桥面防水粘结层的使用性能,选用MMA作为防水粘结材料并对其性能进行试验,通过拉拔试验和剪切试验对防水粘结层的拉拔强度和抗剪强度进行验证,研究底漆、防水粘结层厚度、施工温度以及环境湿度对防水粘结层粘结效应的影响。结果表明:MMA具有较好的耐酸碱性和低温柔性。在钢桥面上铺设底漆可提高防水粘结材料的拉拔强度,MMA防水粘结层厚度以2.5mm为宜,施工温度和环境湿度对其抗剪强度有显著影响,施工时应确保施工温度控制在40℃以下,现场环境的相对湿度不超过60%。
In order to study the performance of waterproof binding course of steel deck pavement, in this paper, the properties of MMA used for waterproof binding course have been tested. The tensile and shear strength have been conducted by the means of tensile test and shear test respectively, studying the effects of primer, the thickness of waterproof binding course, construction temperature and ambient humidity on the bonding effect of the waterproof binding course. The results have shown that the MMA has a good performance of acid and alkaline resistance, as well as the flexibility at lower temperature. The tensile strength of waterproof binding course could be improved by the way of spraying the primer on the steel deck surface. The suitable thickness of waterproof binding course of the MMA is 2.5 mm. The construction temperature and ambient humidity have a significant impact on the shear strength. It shall be controlled that the temperature is fewer than 40, while the ambient humidity is not more than 60% during the construction.
In order to study the performance of waterproof binding course of steel deck pavement, in this paper, the properties of MMA used for waterproof binding course have been tested. The tensile and shear strength have been conducted by the means of tensile test and shear test respectively, studying the effects of primer, the thickness of waterproof binding course, construction temperature and ambient humidity on the bonding effect of the waterproof binding course. The results have shown that the MMA has a good performance of acid and alkaline resistance, as well as the flexibility at lower temperature. The tensile strength of waterproof binding course could be improved by the way of spraying the primer on the steel deck surface. The suitable thickness of waterproof binding course of the MMA is 2.5 mm. The construction temperature and ambient humidity have a significant impact on the shear strength. It shall be controlled that the temperature is fewer than 40, while the ambient humidity is not more than 60% during the construction.
引文
[1]洪一栋,李江,张鸣功,等.钢桥面铺装浇筑式沥青防水粘结层分析与探讨 [J].广东公路交通,2015(3):4-7.
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[10]张争奇,陶晶,张思桐.桥面铺装环氧沥青防水粘结层性能试验与评价 [J].长安大学学报(自然科学版),2011(4):1-6.
[11]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(1):230-233.
[12]赵桢远,陈馥利,刘国鹏.钢桥面铺装防水黏结层的材料选择与分析 [J].公路,2017(3):288-291.
[13]张华,张锋,郝增恒,等.正交异性板钢桥面铺装防水材料试验研究 [J].公路工程,2009,34(1):139-142.
[14]赵锋军,李宇峙,易伟建,等.钢桥面铺装环氧防水粘结层材料与结构试验研究 [J].公路,2006(7):81-84.
[15]杨若冲,程刚.钢桥面铺装车辙破坏机理及成因分析 [J].公路,2004(3):52-55.
[16]李智,钱振东.典型钢桥面铺装结构的病害分类分析 [J].交通运输工程与信息学报,2006(2):110-115.
[2]黄卫,张晓春,胡光伟.大跨径钢桥面铺装理论与设计的研究进展 [J].东南大学学报(自然科学版),2002(3):480-487.
[3]傅栋梁,钱振东.钢桥面铺装预防性养护对策分析 [J].公路,2010(1):201-206.
[4]王胜,叶奋,武金婷,等.钢桥面环氧沥青防水粘结层耐久性影响分析 [J].华东交通大学学报,2012(1):39-42.
[5]樊叶华,黄卫,王敬民,等.江阴大桥钢桥面柔性防水粘结层特性分析 [J].公路交通科技,2007(6):33-36.
[6]何昌轩,周宾,麻旭荣,等.环氧树脂钢桥面防水黏结层性能试验研究 [J].公路,2014(10):234-237.
[7]刘云,于新,戴忧华,等.混凝土箱梁桥铺装防水粘结层力学性能 [J].同济大学学报(自然科学版),2012(1):57-61.
[8]张勐,钱振东,许静,等.钢桥面铺装表面动水压力仿真分析 [J].公路,2016(3):42-46.
[9]王民.钢桥面铺装防水体系防腐性能的评价 [J].长安大学学报(自然科学版),2012(2):74-81.
[10]张争奇,陶晶,张思桐.桥面铺装环氧沥青防水粘结层性能试验与评价 [J].长安大学学报(自然科学版),2011(4):1-6.
[11]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(1):230-233.
[12]赵桢远,陈馥利,刘国鹏.钢桥面铺装防水黏结层的材料选择与分析 [J].公路,2017(3):288-291.
[13]张华,张锋,郝增恒,等.正交异性板钢桥面铺装防水材料试验研究 [J].公路工程,2009,34(1):139-142.
[14]赵锋军,李宇峙,易伟建,等.钢桥面铺装环氧防水粘结层材料与结构试验研究 [J].公路,2006(7):81-84.
[15]杨若冲,程刚.钢桥面铺装车辙破坏机理及成因分析 [J].公路,2004(3):52-55.
[16]李智,钱振东.典型钢桥面铺装结构的病害分类分析 [J].交通运输工程与信息学报,2006(2):110-115.