濕熱重載條件下混凝土橋梁瀝青鋪裝防水粘結層的性能研究
發(fā)布時間：2018-08-04 09:22
【摘要】：近年來我國公路事業(yè)發(fā)展迅速,而橋梁作為公路網(wǎng)中的重要組成部分,在公路建設及運營中所起的作用十分明顯。橋面鋪裝屬于橋梁的重要組成部分,其質(zhì)量的好壞影響著行車質(zhì)量、橋梁的安全耐久性與經(jīng)濟效益。而防水粘結層作為橋面鋪裝的一部分有著非常重要的作用——既通過自身粘結力將水泥橋面板與瀝青混凝土面層粘結為完整的一體,起到承上啟下的作用,也通過自身良好的不透水性來抵御外來水分侵蝕橋梁內(nèi)部,起到保護橋面板的作用。為了保證橋面鋪裝良好的路用性能,有必要對防水粘結層的性能與選擇進行研究。本文基于廣東省的濕熱多雨的氣候特點,結合室內(nèi)實驗及理論分析,對防水層粘結層材料的基本性能與路用性能進行系統(tǒng)的深入研究,將結果進行對比分析后優(yōu)選出適合廣東省水泥混凝土橋面使用的防水粘結層材料。本研究通過對廣東地區(qū)公路橋梁的橋面病害進行調(diào)研,對防水粘結層原材料基本性能進行檢測,并成型復合試件,通過一系列室內(nèi)試驗研究,得到以下研究成果:1、對AMP-100二階反應型防水材料、FYT-1橋面防水材料、SBS改性瀝青以及改性乳化瀝青幾種防水原材料的固含量、耐熱度、粘結強度、拉伸強度等基本性能進行了試驗檢測。試驗結果表明,四種材料的基本性能指標均符合《道橋用防水涂料》(JC/T975-2005)中的標準要求。2、在不同溫度、剪切速率、界面處理方式條件下通過室內(nèi)剪切試驗評價各防水材料的抗剪切能力。試驗結果表明,在相同溫度條件下各材料抗剪強度大小順序為SBS+瓜米石AMP-100FYT-1改性乳化瀝青,且FYT-1在低溫時抗剪性能較好,而AMP-100的高溫抗剪性能較好;在剪切速率較低即重載條件下,SBS+瓜米石的抗剪性能為最佳,FYT-1與AMP-100次之,改性乳化瀝青則較差;經(jīng)鑿毛處理的試件的抗剪強度明顯比未鑿毛的試件要高,最大增加了34.0%。3、在不同溫度、是否浸水的條件下通過室內(nèi)拉拔試驗評價防水材料抗拉拔能力。試驗結果表明,各防水材料的拉拔強度隨著溫度的增大而逐漸減小,且在相同溫度條件下,拉拔性能優(yōu)劣依次為:SBS+瓜米石AMP-100FYT-1改性乳化瀝青;浸水后各材料的拉拔強度明顯低于未浸水的試件。4、利用ABAQUS有限元軟件對橋面鋪裝結構模型的層間剪應力與法向拉應力進行分析。結果表明,當車輛軸載增大一倍時,層間橫向最大剪應力最大增長為原來的1.72倍,層間縱向最大剪應力最大增長為原來的3.04倍,層間法向拉應力最大增大為原來的2.52倍。對不同工況下分析后可得到層間最大剪應力為0.39MPa.,最大法向拉應力為0.21MPa,建議廣東地區(qū)在25℃條件下防水材料的抗剪強度應不小于0.45MPa,抗拉拔強度不小于0.3MPa。防水層厚度的變化對層間應力沒有明顯影響,建議廣東省地區(qū)橋面鋪裝防水層的施工厚度以3mm為最佳;防水層模量以100~300MPa為最佳。5、對水性涂料防水粘結層的施工關鍵技術進行了研究,最后綜合對幾種材料的抗剪性能、拉拔性能以及經(jīng)濟效益進行對比分析,優(yōu)選出適合廣東地區(qū)使用的最佳防水材料為SBS改性瀝青+瓜米石。
[Abstract]:In recent years, the road cause has developed rapidly in our country. As an important part of the highway network, bridge plays an obvious role in highway construction and operation. The bridge deck pavement belongs to the important part of the bridge. The quality of the bridge affects the traffic quality, the safety and durability of the bridge, and the economic benefit. The waterproof bond layer is used as the bridge. Part of the surface pavement has a very important role - both cement bridge deck and asphalt concrete face are bonded to a complete integration through their own cohesive force. It plays an important role, and it also protects the bridge deck by protecting the bridge deck through its good impermeability to protect the bridge deck. It is necessary to study the performance and selection of the waterproof adhesive layer. Based on the climate characteristics of wet and hot and rainy weather in Guangdong Province, this paper systematically studies the basic and road properties of the waterproof layer bonded layer material combined with the indoor experiment and theoretical analysis. The results are compared and analyzed. The waterproof adhesive layer material used in the cement concrete bridge of Guangdong province. Through the investigation of the bridge surface disease of the highway bridges in Guangdong, the basic properties of the waterproof adhesive layer were tested and the composite specimens were formed. Through a series of laboratory tests, the following research results were obtained: 1, the two order reaction prevention of AMP-100 Water material, FYT-1 bridge surface waterproof material, SBS modified asphalt and modified emulsified bitumen are tested for the solid content, heat resistance, bond strength, tensile strength and other basic properties. The test results show that the basic performance indexes of the four materials are all in accordance with the standard requirement.2 in the waterproofing coating > (JC/T975-2005) for the road and bridge. Under the conditions of different temperature, shear rate and interface treatment, the shear resistance of each waterproof material is evaluated by indoor shear test. The experimental results show that the order of shear strength of each material under the same temperature is SBS+ AMP-100FYT-1 modified emulsified asphalt, and the shear resistance of FYT-1 at low temperature is better, while AMP-100 is higher. Under the condition of low shear rate, the shear property of SBS+ is the best, FYT-1 and AMP-100 are the best, the modified emulsified asphalt is poor; the shear strength of the specimen treated by the chisel is obviously higher than that of the unchiseled specimen, and the maximum increase is 34%.3 at different temperatures and under the condition of water immersion. The tensile strength of the waterproof material is evaluated by the drawing test. The test results show that the drawing strength of each waterproof material decreases gradually with the increase of temperature. And under the same temperature conditions, the drawing properties of the materials are in turn SBS+ AMP-100FYT-1 modified emulsified asphalt, and the drawing strength of each material after immersion is obviously lower than that of the unsoaked specimen.4, The ABAQUS finite element software is used to analyze the interlayer shear stress and normal tensile stress of the bridge deck pavement structure model. The results show that when the vehicle axle load is doubled, the maximum shear stress of the interlayer transverse maximum shear stress is 1.72 times as large as the original, and the maximum shear stress of the interlayer longitudinal maximum shear stress is 3.04 times as much as the original, and the maximum tensile stress between the layers increases greatly. For the original 2.52 times, the maximum shear stress of the interlayer can be 0.39MPa. and the maximum normal tensile stress is 0.21MPa. It is suggested that the shear strength of the waterproof material should not be less than 0.45MPa under the condition of 25 C, and the change of the tensile strength not less than the thickness of the 0.3MPa. waterproof layer has no obvious influence on the interlayer stress in Guangdong. The construction thickness of the bridge deck pavement waterproof layer in Guangdong province is 3mm, and the waterproof layer modulus takes 100~300MPa as the best.5. The key technology of waterproofing coating is studied. Finally, the shear performance, drawing performance and economic benefit of several materials are compared and analyzed, and it is suitable for the use of Guangdong area. The best waterproof material is SBS modified asphalt + Cucumber stone.
【學位授予單位】：廣州大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：U443.33
本文編號：2163382
[Abstract]:In recent years, the road cause has developed rapidly in our country. As an important part of the highway network, bridge plays an obvious role in highway construction and operation. The bridge deck pavement belongs to the important part of the bridge. The quality of the bridge affects the traffic quality, the safety and durability of the bridge, and the economic benefit. The waterproof bond layer is used as the bridge. Part of the surface pavement has a very important role - both cement bridge deck and asphalt concrete face are bonded to a complete integration through their own cohesive force. It plays an important role, and it also protects the bridge deck by protecting the bridge deck through its good impermeability to protect the bridge deck. It is necessary to study the performance and selection of the waterproof adhesive layer. Based on the climate characteristics of wet and hot and rainy weather in Guangdong Province, this paper systematically studies the basic and road properties of the waterproof layer bonded layer material combined with the indoor experiment and theoretical analysis. The results are compared and analyzed. The waterproof adhesive layer material used in the cement concrete bridge of Guangdong province. Through the investigation of the bridge surface disease of the highway bridges in Guangdong, the basic properties of the waterproof adhesive layer were tested and the composite specimens were formed. Through a series of laboratory tests, the following research results were obtained: 1, the two order reaction prevention of AMP-100 Water material, FYT-1 bridge surface waterproof material, SBS modified asphalt and modified emulsified bitumen are tested for the solid content, heat resistance, bond strength, tensile strength and other basic properties. The test results show that the basic performance indexes of the four materials are all in accordance with the standard requirement.2 in the waterproofing coating > (JC/T975-2005) for the road and bridge. Under the conditions of different temperature, shear rate and interface treatment, the shear resistance of each waterproof material is evaluated by indoor shear test. The experimental results show that the order of shear strength of each material under the same temperature is SBS+ AMP-100FYT-1 modified emulsified asphalt, and the shear resistance of FYT-1 at low temperature is better, while AMP-100 is higher. Under the condition of low shear rate, the shear property of SBS+ is the best, FYT-1 and AMP-100 are the best, the modified emulsified asphalt is poor; the shear strength of the specimen treated by the chisel is obviously higher than that of the unchiseled specimen, and the maximum increase is 34%.3 at different temperatures and under the condition of water immersion. The tensile strength of the waterproof material is evaluated by the drawing test. The test results show that the drawing strength of each waterproof material decreases gradually with the increase of temperature. And under the same temperature conditions, the drawing properties of the materials are in turn SBS+ AMP-100FYT-1 modified emulsified asphalt, and the drawing strength of each material after immersion is obviously lower than that of the unsoaked specimen.4, The ABAQUS finite element software is used to analyze the interlayer shear stress and normal tensile stress of the bridge deck pavement structure model. The results show that when the vehicle axle load is doubled, the maximum shear stress of the interlayer transverse maximum shear stress is 1.72 times as large as the original, and the maximum shear stress of the interlayer longitudinal maximum shear stress is 3.04 times as much as the original, and the maximum tensile stress between the layers increases greatly. For the original 2.52 times, the maximum shear stress of the interlayer can be 0.39MPa. and the maximum normal tensile stress is 0.21MPa. It is suggested that the shear strength of the waterproof material should not be less than 0.45MPa under the condition of 25 C, and the change of the tensile strength not less than the thickness of the 0.3MPa. waterproof layer has no obvious influence on the interlayer stress in Guangdong. The construction thickness of the bridge deck pavement waterproof layer in Guangdong province is 3mm, and the waterproof layer modulus takes 100~300MPa as the best.5. The key technology of waterproofing coating is studied. Finally, the shear performance, drawing performance and economic benefit of several materials are compared and analyzed, and it is suitable for the use of Guangdong area. The best waterproof material is SBS modified asphalt + Cucumber stone.
【學位授予單位】：廣州大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：U443.33
【參考文獻】
相關期刊論文 前10條
1 詹建林;;淺析防水粘結層在瀝青層橋面鋪裝的重要性及施工注意事項[J];福建交通科技;2017年02期
2 吳文佑;;水泥混凝土橋梁橋面防水粘結層破壞原因分析[J];江西建材;2016年23期
3 李志;劉東美;;橋面瀝青鋪裝層早期病害及預防性養(yǎng)護技術研究[J];山東工業(yè)技術;2016年18期
4 高彥杰;;橋面鋪裝常用防水粘結層材料力學性能研究[J];北方交通;2016年05期
5 劉佳;;水泥砼橋橋面鋪裝防水粘結層剪切試驗研究[J];山東交通科技;2016年02期
6 吳立新;呂巍;趙陽;;基于性能試驗的典型橋面防水粘結層應用探討[J];北方交通;2014年06期
7 宋建寧;;不同水泥混凝土橋面防水粘結層材料試驗研究[J];城市道橋與防洪;2013年08期
8 文滔;;混凝土橋面鋪裝環(huán)氧瀝青防水粘結層性能研究[J];四川建筑科學研究;2012年06期
9 馬亮;;防水粘結層參數(shù)對橋面鋪裝層間剪應力的影響[J];交通標準化;2012年11期
10 戴剛;呂燕;;混凝土橋面鋪裝防水粘結層研究[J];中國建筑防水;2011年24期
相關碩士學位論文 前10條
1 張東魯;橋面防水粘結層材料性能評價與應用研究[D];華南理工大學;2016年
2 石程光;橋面鋪裝材料結構組合與防水粘結層性能研究[D];吉林大學;2015年
3 曹思法;遼河濱海公路大橋橋面防水粘結層技術研究[D];吉林大學;2015年
4 郭健彬;水泥混凝土橋面防水粘結層性能研究及應用[D];華南理工大學;2014年
5 王篤喜;水泥混凝土橋面瀝青混凝土鋪裝防水粘結層的性能研究[D];重慶交通大學;2012年
6 蔡燕霞;濕熱多雨地區(qū)復合橋面鋪裝防水粘結層研究[D];長安大學;2011年
7 周鍵煒;水泥混凝土橋面防水粘結層的試驗研究[D];南京林業(yè)大學;2009年
8 郭鑫淼;水泥混凝土橋鋪裝層防水粘結材料性能研究[D];長安大學;2009年
9 劉聰慧;幾種水泥混凝土橋面防水粘結層性能研究[D];武漢理工大學;2009年
10 常建勇;瀝青混合料抗剪試驗方法及抗剪性能研究[D];長安大學;2009年
，本文編號：2163382
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