论文部分内容阅读
通过室内斜剪试验评价了聚合物桥面铺装层间抗剪强度,分析了剪切速率、温度以及涂膜厚度对层间抗剪强度的影响.结果表明:聚合物铺装结构层间抗剪强度值随着剪切速率的增加而呈幂指数上升;层间抗剪强度随温度的上升而下降,试验组中其值在60℃时达最低,但仍远远高于其他铺装材料;环氧树脂抗剪强度在半对数坐标下相对于温度变化接近线性关系,其相比沥青类材料受温度影响程度更小;随着树脂膜厚的增加,聚合物铺装结构层间抗剪强度表现为先增高后降低的趋势,计算得Mark--135的最佳膜厚为0.28 mm,Mark--163的最佳膜厚为1.10 mm.
The interlaminar shear strength of polymer bridge deck pavement was evaluated by indoor oblique shear test and the influence of shear rate, temperature and coating thickness on interlaminar shear strength was analyzed.The results showed that interlaminar shear strength Shear strength increases exponentially with the increase of shear rate. The interlaminar shear strength decreases with the increase of temperature. In the experimental group, the shear strength reaches the lowest value at 60 ℃, but still much higher than other pavement materials ; The shear strength of epoxy resin in the semi-logarithmic coordinates relative to the temperature changes close to a linear relationship, compared with the asphalt material temperature less affected; with the resin film thickness increases, the polymer pavement structure of the interlayer resistance The shear strength showed a trend of first increasing and then decreasing. The optimal film thickness of Mark - 135 was 0.28 mm and the optimal film thickness of Mark - 163 was 1.10 mm.