Mechanical Properties of Gangue Cement Stabilized Road Foundation Mixture

In this study, coal gangue was used to replace the four single-graded natural gravels of 0~5 mm, 5~10 10~20 and 20~26.5 mm design mix ratio study influence in particle size changes on mechanical properties mixture. The research results show that: maximum dry density mixture with is lower than crushed stone water-stable mixture, optimal moisture content higher that mixture; aggregate mixed cement stabilized 7d 28d unconfined compressive strength, splitting compression rebound modulus values are all reduced, which has a degrading effect however, both can attain high speed, basic strength requirements for expressways, including first-class highways.