Study on Engineering Performance of Green Porous Sponge Ecological Concrete

To meet the needs of sponge city construction, based on design method mix proportion green porous ecological concrete, engineering performance concrete was studied with orthogonal experimental. The results show that compressive strength specimens peaked at 0.9% admixture sponge; optimal sponge, 12% mineral powder; compared ordinary water-retaining property is twice than ordinary, and has high permeability low evaporation; under same external temperature, maximum temperature surface lower ordinary; three work conditions, volumes water going through respectively, are 1.78 kg/(s·m2), 1.47 1.62 value second totally dry condition minimum because blocking affection internal sponge. research will provide help for infrastructure construction play an important guiding significance to promote resource-saving environment-friendly cities.