Using air-cooled blast furnace slag coarse aggregate and limestone fine aggregate,C-C-2 graded cement stabilized base mix was designed and prepared,and its strength and frost resistance were studied.The results showed that the 7 d unconfined compressive strength of C-C-2 heavy slag cement stabilized mix could reach more than 5.0 MPa when the cement(PO32.5)dose was 3％,and the 7 d unconfined compressive strength of the mix increased with the increase of cement dose.The maximum dry density of C-C-2 heavy slag cement stabilized mixes was the largest when the cement dosage was 4％,and at the same time,it was effective in improving the 180 d compressive strength and frost resistance of cement stabilized air-cooled blast furnace slag mixes.
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