植生型“夹心”生态混凝土的试验研究

Experimental study on planting type“sandwich”ecological concrete

针对废弃的建筑垃圾堆积如山及环境污染严重等问题,利用废弃混凝土作为再生骨料研制了一种能为植物提供良好生长环境的混凝土,即植生型"夹心"生态混凝土。试验研究表明,骨料粒径越大,混凝土的抗压强度越低,孔隙率越大,透水性越好。通过植物试种试验,发现植物能在混凝土中良好的生长。植生型"夹心"生态混凝土可广泛应用于河道护坡、人行道绿化、停车场等工程中,既能节能减排,又能保护生态环境,实现人与自然和谐发展。

For the problems such as the accumulation of abandoned construction waste and serious environmental pollution,a kind of concrete was developed using waste concrete as recycled aggregate,that can provide good growth environment for plants,namely,planting type"sandwich"ecological concrete.The experimental results show that the larger the aggregate size,the lower the compressive strength of concrete,the greater the porosity and the better the water permeability.Through plant trials,plants were found to grow well in concrete.The planting type "sandwich"ecological concrete can be widely used in river slope protection,sidewalk greening,parking lot and other projects.It can not only energy conservation and emissions reduction,but also protect the ecological environment and achieve harmonious development between human and nature.