Study on Physical Properties and Vegetative Adaptation of Eco-porous Concrete

Abstract

In order to study the influence factors of eco-porous concrete performance and capacity of plant growth, the porous concrete with different mixing proportions were produced to test strength, porosity and pH value. The concrete blocks were carbonized in natural condition so that their alkalinity met the requirement of plant growth. The Tall Fescue, Bermuda, Puccinellia and other three types of mixed grasses were then planted in the porous-concrete blocks. The results indicate that the compressive strength of the eco-porous concrete is decreased by the rise of design porosity. The higher is the design porosity, the less is the strength infected by the water-binder ratio. Measured porosity is raised as the water-binder ratio is increased. It is shown by plantgrowing test that the carbonized eco-porous concrete could meet the requirements of plant growth based on tested grass species, where Tall Fescue has the advantage of rapid turf-establishment and LanLanJingâ…¢ appears the best on the garden greening effect.