提出了高等级公路路面混凝土实现高折压比的配合比设计方法。通过大量试验,分析了掺加抗折剂后混凝土的技术特性,结果表明,要获得抗弯拉强度高、成本经济的混凝土配合比,需从单位水泥用量、抗折剂掺量、抗折剂品种与水泥的适应性等方面综合考虑。通过合理使用抗折剂,在减少水泥用量同时,优化的配合比设计能使混凝土7 d抗弯拉强度达到6.00—7.00 MPa以上,28 d能达到7.00—8.00 MPa以上。 Proposed high-grade highway pavement concrete with high pressure ratio of the mix design. Through a large number of experiments, the technical characteristics of the concrete after adding the anti-crease agent were analyzed. The results showed that to get the concrete with high flexural strength and low cost, Varieties and adaptability of cement and other aspects of comprehensive consideration. Through the rational use of anti-crease agent, the cement mix can reduce the amount of cement at the same time, and the optimized mix design can make the concrete flexural tensile strength reach 6.00-7.00 MPa at 7 days and over 7.00-8.00 MPa at 28 days.