道路用复合超细粉煤灰的应用研究

Investigation of the Application of Composite Ultrafine Fly Ash Used in Road

对道路用掺复合超细粉煤灰混凝土进行了大量的试验研究.结果表明:以20%～40%的复合超细粉煤灰等量取代水泥,可使道路混凝土的各项力学性能指标均满足要求,且同时具有良好的和易性、路面耐磨性和抗裂性;采用这一科研成果,可获得显著的技术经济效益和环境效益.

Composite ultrafine fly ash(CUFA) used in road was produced with ultrafine fly ash as main raw material, and stimulator added as modifier. The experiment tests and field test results show that high performance road concrete is attained with 20%～40% equivalent cement replaced by CUFA in highway concrete. The mechanical properties are satisfaction with requirements. The workability is good. The wearability and cracking resistance are improved notably. The benefits of technical economy and environment are significant.