Application Research of Machine-made Fine Sandstone Aggregate in Graded Crushed Stone Base
In recent years,with the implementation of China's"Belt and Road"initiative and the economic development in Africa,Chinese enterprises have increasingly participated in African road construction projects.Ensuring project quality while reducing costs and gaining the approval of foreign owners and supervisors is the goal of overseas builders.This study focuses on the construction of the PK0 to PK83 section of the graded crushed stone base in the CMD project in Guinea,West Africa.By using machine-made fine sandstone aggregate to replace part of the stone dust,the optimal blending ratio was determined through technical data verification and received approval from international supervisors.Machine-made fine sandstone aggregate has low mud content and good cohesion properties.Its appropriate incorporation can improve the technical performance of the graded crushed stone base,reduce construction costs,enhance the quality of the road base,and consequently extend the service life of the road.
basegraded crushed stonemachine-made fine sandstone aggregate
NETL
NSTL
万方数据
