摘要
为研究混凝土桥面板防水粘结材料最佳用量和层间抗剪强度,选取3种典型的桥面板表面纹理及3种防水粘层材料,通过直接剪切试验分别确定不同防水粘层材料与不同纹理混凝土桥面板组合时的防水粘层材料最佳用量及层间抗剪强度。试验结果表明,防水粘层材料最佳用量随桥面板表面纹理的丰富程度而提高,露石界面的防水粘层材料的最佳用量较大;对于3种类型表面纹理,常温下丙烯酸酯类防水粘层材料的层间抗剪强度大于SBS改性沥青和SBR改性乳化沥青的;对于同种防水粘层材料,露石界面的层间抗剪强度最大;温度对层间抗剪强度影响显著,当试验温度由25℃上升到60℃时,3种界面的层间抗剪强度均有大幅下降,但露石界面的层间抗剪强度随温度变化的敏感性较小。
To study the optimal usage of waterproof binding materials and the interlayer shearing strength of concrete bridge deck,three kinds of the typical surface textures of deck slabs and three kinds of the waterproof binding materials were selected.Through the direct shearing tests,the optimal usage of the binding materials and the interlayer shearing strength at the time the different binding materials were bound with the deck slabs with different textures were respectively determined.The results of the tests i...
出处
《世界桥梁》
北大核心
2010年第2期55-58,共4页
World Bridges
关键词
桥面铺装
混凝土
防水粘层材料
表面纹理
最佳用量
层间抗剪强度
deck pavement
concrete
waterproof binding material
surface texture
optimal usage
interlayer shearing strength
