透水混凝土的表面纹理和抗滑性能

在路面防滑性方面,表面纹理曾长期地被认为是主要因素,但没有定量计算不同表面参数是透水混凝土路面的防滑性。引入了分形几何,通过分形插值可精确模拟透水混凝土断面轮廓曲线。结合轮胎/路面接触模型,表面纹理的优化方法被应用于设计和建造具有防滑性和低噪音的混凝土路面中。结果表明,相比于传统的槽式或暴露粗骨料的混凝土路面,透水混凝土路面的表面纹理非常耐用。

Evaluation of Surface Textures and Skid Resistance of Pervious Concrete Pavement

Surface textures had long been recognized as primary factors to provide the skid resistance on pavements; however, no measurement of skid resistance on pervious concrete pavement with various surface texture parameters had been made. Fractal geometry was introduced in the present work to accurately simulate transect contour curves of pervious concrete specimens through fractal interpolation. Combined with tire/road contact model, the optimization method of all surface textures was recommended for designing and constructing excellently skid-resistant and noise-absorptive pervious concrete pavement.Results show that the surface textures on pervious concrete pavement slabs is extremely durable, compared to those on conventional grooved or exposed aggregate concrete pavement slabs.