园林工程用的高粘剂改性透水沥青制备及性能研究

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中图分类号：TQ522.65 文献标志码：A 文章编号：1001-5922（2025）05-0081-05

Abstract ：In order to improve the permeabilityand durabilityof permeable asphalt pavement for landscape engineering，a permeable asphalt material was prepared byreplacing basalt with anappropriate amount of stel slag and other materials，and its properties were modified byadding high viscosityagent.Theresultsshowed thatreplacing basalt withsteel slag andother materials was beneficial toimprove thepermeability，water stabilityand Marshallstabilityof permeable asphalt materials，but would increase the expansion rate.In the test，theoptimal steel slag content was 80% ，at this time，the permeability coeficient of the permeable asphalt material was 3.21 mm/s，the Marshall stability increased by 24.9% ，the splitting tensile strength before and after freezing and thawing increased by 13.3% and 20.0% ，respectively，and the expansion rate was 0.846% ，all of which met the specification requirements of permeableasphalt pavement.Inaddition，the Burgers modelshowed thattheadditionof high viscositycould increase the delay timeof permeable asphalt materialsand improve the viscoelasticity.In summary，the permeableasphalt material mixed with 80% steel slag has good comprehensive properties and can be used in garden engineering.

Key words ：blast furnace slag；permeable asphalt；high viscosity modified material；marshallstability；expansion rate密级配沥青路面在各城市道路、园林工程中应 用较多，但容易影响雨水的自然渗透，从而出现城市

洪涝等。（剩余7076字）