EXPERIMENTAL STUDY ON STRENGTH OF CEMENT STABILIZED SAND GRAVEL BASE OF HIGH WAY IN COLD AREA
Under the repeated action of traffic load and temperature load in cold area,the shrinkage crack of cement stabilized sand gravel base is easy to expand to the asphalt surface and form a reflection crack.In order to analyze the strength of cement stabilized gravel base,the author designed several groups of cement stabilized gravel gradation with different thickness and carried out experiments on unconfined compressive strength and splitting strength of cement stabilized gravel,and studied the influence of health age and grading type on the splitting strength of specimens through experiments.The effects of curing age,cement dosage and grade type on crack resistance of specimens were analyzed.The results show that the strength of the specimen can be improved by increasing the dosage of cement or us-ing the grade type with good intercalation.The key period for the growth of the splitting strength of the specimen is in the early stage of curing,and the growth rate of the splitting strength slows down after 14 days of curing
highway in cold areacement stabilized gravelspecimen splitting strength
NETL
NSTL
万方数据
