Abstract:In order to solve the rutting disease of the asphalt pavement and the environmental pollution caused by the hotmix construction,awarm mix high-modulus asphalt mixture was designed. The applicability of the two kinds of warm mixers was analyzed by viscosity test, softening point test and ductility test. The pavement performance of high-modulus as- phalt concrete was studied through rutting test,low-temperature beam bending test, immersion Marshall test and freeze-thaw splitting test.Acontrast test of hot mix and warm mix technique was carried out to compare and analyze the effect of warm mix technique on the pavement performance of high-modulus asphalt concrete. The results show that theorganic waxwarm mixagent can increase the softening point and 60℃rotary viscosity of SBS asphalt, but it has anadverse effect on the ductility at 5℃. The dynamics tability of theorganic waxwarm mix asphalt mixture HMAC-13 is slightly lower compared with that of the hot mixasphalt mixture HMAC-13, but the decrease is not significant. The flexural tensile strength and stiffness modulus of the organic waxwarm mixasphalt mixture HMAC-13 are higher than that of the hot mix asphalt mixture HMAC-13, but it sultimate failure strain is slightly smaller than that of the hot mixasphalt mixture HMAC-13.The immersion Marshall residual strength and freeze-thaw splitting strength of the organic waxwarm mix asphalt mixture HMAC-13 are higher than that of the hot mixasphalt mixture HMAC-13, indicating that theorganic waxwarm mixasphalt mixture HMAC-13 has better water stability.