摘要
Abstract
To improve the anti-cracking performance of expressway and extend their service life,an anti-cracking design meth-od for super-thick cement-stabilized river sand mixed with crushed stone base was proposed.Selecting cement,river sand,crushed stone,stone chips,and water as raw materials,the ratio of stone chips,crushed stone,and river sand is deter-mined to be 10∶35∶55 through mix optimization design.On this basis,through the mixing,transportation,paving,roll-ing and joint treatment processes of the mixture,the anti-cracking design of the super-thick cement-stabilized river sand mixed with crushed stone base of the expressway is completed.It is verified that the base designed using this method has good anti-cracking performance,which can effectively extend the service life of the expressway.关键词
高速公路/水泥稳定河砂掺碎石/配合比优化设计/双层连铺施工/基层抗裂设计Key words
expressway/cement-stabilized river sand mixed with crushed stone/mix ratio optimization design/double-layer continuous paving construction/base anti-cracking design分类
交通工程
