一种城市道路工程用新透水性复合材料制备及性能

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关键词：乳胶粉；再生骨料；抗压强度；孔隙率；透水系数中图分类号： ；TU528 文献标志码：A文章编号：1001-5922（2025）05-0090-04

Abstract：In order to reduce construction waste and improve the permeability of urban roads，a regenerated agregate was modified with a dispersible polymer powder （VAE）solution，and then the modified recycled aggregate was combined with cement，gravel，polypropylene fiber and other materials to prepare a permeable material.The test results showed that VAE modified recycled aggregate was beneficial to improve the mechanical properties of permeable materials，but would reduce their permeability.The increase of recycled aggregate content was negativelycorrelated withthe mechanical propertiesof permeablematerials，and positivelycorrelated with itspermeability.Inthetest，when 30% modified recycledaggregate was mixed into the permeable material，the compressive strength and spliting tensile strength of thematerial were 24.O MPaand2.85 MPa，respectively，and the porosityand permeabilitycoeficient were 13.1% and 2.34mm/s ，respectively.This kind of permeable material has good comprehensive performance and certain environmental protection，and has a certain potential value in urban road engineering applications.

Key words ：latex powder；recycled aggregate ； compressive strength ； porosity ； permeability coefficient

为提高城市中的水资源平衡性、改善城市路面情况，透水混凝土路面在城市道路工程中的应用越来越多。（剩余6165字）