瀝青混凝土心墻層間結合質量影響因素研究

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瀝青混凝土心墻層間結合質量影響因素研究(論文4300字)
摘要:心墻結合面是瀝青混凝土心墻中的薄弱環節,容易受氣溫、降雨等因素的影響。本文結合大伙房水庫的具體工程,根據相關實驗模擬了-3℃、25℃、45℃、125℃四種層面溫度和采取向層面灑水措施且層面溫度為55℃、65℃、75℃、85℃八種工況進行瀝青心墻碾壓施工模擬。結果表明,低溫條件不影響瀝青混凝土的力學性能,心墻施工無需人為加熱層面的允許最低溫度為45℃;采取向層面灑水的措施具有良好的防粘效果,并且瀝青混凝土的防滲性能也得以保證,心墻施工無需人為加熱層面的允許最低溫度為75℃,為相關工程建設提供了依據。
關鍵詞:瀝青混凝土;大伙房水庫;心墻結合面;灑水措施
Research on Factors Affecting the Binding Quality of asphalt Concrete Core Walls
Abstract: The combination of heart and wall is the weak link in the asphalt concrete core wall and is easily influenced by the factors such as temperature and rainfall. According to the specific engineering of Dahuofang reservoir, the temperature of -3 oC, 25 oC, 45 oC, 125 oC are simulated and the water level is sprayed to the surface at the level of 55 oC, 65 oC, 75 oC, 85 oC eight kinds of conditions for asphalt core wall rolling construction simulation. The results show that the low temperature does not affect the mechanical properties of asphalt concrete. The allowable minimum temperature of the wall without artificial heating is 45 oC. The water spray to the surface has good anti-sticking effect and the impermeability of asphalt concrete is also Ensure that the minimum allowable minimum temperature for core wall construction without artificial heating is 75 oC, which provides the basis for the construction of relevant projects.
Key words: asphalt concrete; Dahuofang reservoir; core-wall combined surface; sprinkling measures

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