Performance Study And Production Application Of Cement Stabilized Crushed Stone Mixed With Fiber

Cement stabilized macadam materials with high strength,high rigidity,strong integrity and a series of advantages,as the basic material is widely used in highway pavement,at present,has been widely used in many of the city's municipal road base.Cement stabilized macadam materials with high strength,high rigidity,strong integrity and a series of advantages,as the basic material is widely used in highway pavement,at present,has been widely used in many of the city's municipal road base.In order to improve the performance of cement stabilized macadam,effectively reduce the shrinkage deformation of cement stabilized macadam,restrain shrinkage cracking of cement stabilized macadam base,this paper mainly to polyester,polypropylene,polyvinyl alcohol,polyacrylonitrile fiber as the research object.The effects of different fiber content,age and different fiber types on the tensile strength,compressive strength,compressive resilience modulus and drying shrinkage of cement stabilized crushed stone were studied.Through the analysis of the mechanism of the strength of the fiber and cement stabilized crushed stone and the drying shrinkage mechanism,the test data were analyzed by the methods of mathematical statistics and charts.The research shows that the variety and performance of fiber and the content of fiber can improve the mechanical properties and drying shrinkage performance of cement stabilized crushed stone.And the influence of different curing age on the performance of cement stabilized crushed stone mixture is also different.