植被型生态混凝土孔隙内碱环境改造方法研究

The methods for creating the alkalinity of the pore solution in ecological concrete adapt to plants-growing

分析探索了植被型生态混凝土孔隙内碱环境的改造方法.结果表明,将植被型生态混凝土孔隙内的碱度控制在适宜范围以获得植物生长的环境条件,可考虑采用以下措施：（1）掺加适量矿物掺合料;（2）待置于空气中的混凝土碳化一定程度后再进行植物培植;（3）按照m（水）：m（草酸）=100∶ （1～3）配制草酸溶液,喷洒于生态混凝土中,再往孔隙内填充偏酸性土壤.

The methods for creating the alkalinity of the pore solution in ecological concrete adapt to plants-growing have been analyzed and explored. The results indicate that the alkalinity of the pore solution in ecological concrete adapt to plants- growing should be kept at the proper range in order to provide suitable environment for plants growth. The following measures are recommended： （1）adding suitable mineral admixtures; （2）placing in air for a period so as to make the concrete partially carbonat- ed; （3）prepare oxalic acid solution based on re（water）：m（oxalic acid）=100：（1-3）,which is sprayed in the ecological concrete,then the pores are filled with acidic soil.