机场道面冷拌环氧沥青研发及性能研究OA

New material development of asphalt pavement provides a way to improve the performance of airport pave-ment,among which epoxy asphalt has been gradually developed and studied in recent years,which shows good per-formance.At present,epoxy asphalt mixture is mostly mixed at high temperature,which is difficult to meet the re-quirements of construction without closure to flight and environmental protection.But cold mixed epoxy asphalt mix-ture can solve the above problems.Therefore,starting from the preparation principle of cold-mixed epoxy asphalt,the influencing factors of curing time,mechanical properties,deformation capacity and retention time were explored to determine the types and ratios of each component.A new cold-mixed epoxy asphalt material was independently developed,which has tensile strength of 2.78 MPa and elongation at break of 58.61％.The asphalt mixture was tested.It was found that all the high temperature stability,low temperature deformation ability and water stability of the cold mixed epoxy asphalt mixture are good,which meet the requirements of airport pavement and can be popularized in airport pavement repair projects.