基于防渗等性能的道路碎石封层试验研究

Experimental Study on Road Stone Seal with Anti-seepage and Other Functions

为设计出性能优良的道路碎石封层,防止水分进入道路结构基层,通过剪切试验与拉拔试验,从胶结料种类及用量、碎石粒径及撒布量4个方面对道路碎石封层进行了优化设计,并对其抗渗性、温度敏感性、抗冻性三项路用性能进行了评价,通过研究优化出了性能优良的道路碎石封层的组成。

In order to obtain road stone seal with good functions to prevent water from entering the road base, optimizationdesign of road stone seal is conducted by shear test and pullout test, which investigate type and dosage of bonding materials,particle size and spreading amount of rubbles. Anti-seepage, temperature sensitivity and frost resistance of road stone seal areevaluated too. This article points out the components of road stone seal with good functions.