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植生混凝土的制备工艺与物种选择
作者：黄文杰，焦楚杰，彭兰，谭思琪
（广州大学 土木工程学院，广东 广州 510006）
摘要：采用比表面积法进行植生混凝土配合比计算，优选裹浆法和无振荡分层压制成型法制备了植生混凝土试块，自制了降碱材料与浸水法相结合的方法对植生混凝土进行降碱处理，自制了营养土并进行多种草本植物的种植，通过1个月的时间观察其生长状况。试验结果表明，采用上述方法制备出强度等级为C10~C15、孔隙率达20%、pH值为8~10的植生混凝土；在湿热多雨的气候中，狗牙根和高羊茅成活率较高，生长速度较快，其中狗牙根适合在连续晴天高温天气下种植，高羊茅适合在连续阴雨天气下种植。
关键词：植生混凝土；配合比；制备工艺；降碱；植物种植
中图分类号：TU528.2 文献标识码：A 文章编号：1001-702X（2019）11-0037-05
Preparation technology and species selection of plant concrete
HUANG Wenjie，JIAO Chujie，PENG Lan，TAN Siqi
（School of Civil Engineering，Guangzhou University，Guangzhou 510006，China）
Abstract：The specific surface area method was used to calculate the mixture ratio of the plant-growing concrete. The test block of the plant-growing concrete was prepared by the optimizing the slurry wrapping method and the non-oscillatory layered pressing forming method. The alkali-reducing material and soaking method were combined to carry out alkali-reducing treatment on the plant-growing concrete. The nutrient soil was self-made and various herbaceous plants were planted. The growth status was observed through one month's time. The experimental results show that the strength grade of the plant concrete prepared by this method reaches C10 to C15，porosity reaches 20%，and pH value reaches 8 to 10. In hot and humid weather，the survival rate and growth speed of Bermudagrass and tall fescue are higher，among which bermudagrass is suitable for planting in continuous sunny days and high temperatures，tall fescue is suitable for planting in continuous rainy days.
Key words：plant concrete，mixture ratio，preparation process，alkali reduction，plants grow