基于正交试验方法的植生混凝土性能研究  

Performance of Vegetation-Type Concrete Based on Orthogonal Experimental Method

作　　者：刘平 许艳平[2] 刘飞 潘剑 范志宏[2,4,5] LIU Ping;XU Yanping;LIU Fei;PAN Jian;FAN Zhihong(The Third Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd.,Zhanjiang 524018,China;CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China;Guangxi Pinglu Canal Construction Co.,Ltd.,Nanning 530029,China;Key Laboratory of Construction Materials,CCCC,Guangzhou 510230,China;Key Laboratory of Harbor&Marine Structure Durability Technology,Ministry of Transport,Guangzhou 510230,China)

机构地区：[1]中交四航局第三工程有限公司,湛江524018 [2]中交四航工程研究院有限公司,广州510230 [3]广西平陆运河建设有限公司,南宁530029 [4]中交集团建材重点实验室,广州510230 [5]水工构造物耐久性技术交通运输行业重点实验室,广州510230

出　　处：《硅酸盐通报》2024年第12期4398-4405,共8页Bulletin of the Chinese Ceramic Society

基　　金：国家重点研发计划(2022YFB2603000)。

摘　　要：植生混凝土是一种能将工程防护和生态修复很好结合起来的新型护坡材料,可实现长期持续性生态护坡。基于正交试验方法,采取低碱度硫铝酸盐水泥开展了边坡植生混凝土配合比设计,比较了混凝土水胶比、集料粒径以及富余浆量比对抗压强度、孔隙率及pH值的影响,得到最优配合比并在此基础上开展平陆运河边坡植生混凝土铺设和植物种植试验。结果表明:水胶比为0.28、集料粒径为9.5~19 mm、富余浆量比为7.75时植生混凝土各项植生性能达到最优;优选狗尾巴草、狗牙根草和宽叶草等,单独种植或混合种植时均能达到较好的效果。Vegetation-type concrete is a new type of slope protection material that can effectively combine engineering protection and ecological restoration,achieving long-term sustainable ecological slope protection.Based on the orthogonal experimental method,the mix proportion design of slope vegetation-type concrete was carried out using low alkalinity sulfoaluminate cement,and the effects of concrete water cement ratio,aggregate particle size,and surplus cement pastes content on compressive strength,porosity,and pH value were compared.Obtain the optimal mix proportion and conduct vegetation-type concrete laying and plant planting experiments on the slope of the Pinglu Canal based on this foundation.The results show that when the water cement ratio is 0.28,the aggregate particle size is 9.5~19 mm,and the surplus cement pastes content is 7.75,the vegetation-type concrete achieves the best vegetation performance.Choose dogtail grass,bermuda grass,and broadleaf grass for optimal results when planted alone or in combination.

关 键 词：植生混凝土 强度 碱度 孔隙率 植生性能 

分 类 号：TU528[建筑科学—建筑技术科学]