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提高透水性种植混凝土的力学性能和透水性：添加剂与植物生长的研究

Enhancing the Mechanical Properties and Water Permeability of Pervious Planting Concrete: A Study on Additives and Plant Growth.

作者信息

He Juan, Xu Shanhansu, Sang Guochen, Wu Yonghua, Liu Shuang

机构信息

College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.

School of Civil Engineering and Architecture, Xi'an University of Technology, Xi'an 710048, China.

出版信息

Materials (Basel). 2024 May 13;17(10):2301. doi: 10.3390/ma17102301.

DOI:10.3390/ma17102301
PMID:38793367
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11123233/
Abstract

Pervious planting concrete (PPC) is in line with the concept of ecological environmental protection. However, due to its own porous structure, it is difficult to obtain excellent mechanical properties and water permeability at the same time, which hinders its promotion and application. In this paper, natural gravel (NG), ordinary Portland cement (OPC), polyvinyl alcohol latex powder (PVAP) and polycarboxylate superplasticizer (PS) were used to prepare the PPC, and its mechanical properties and water permeability were studied. Three kinds of plants were planted in the PPC and their planting properties were studied. At the same time, the effect of on the planting properties was studied. The results show that when the water-binder ratio (W/B) was 0.28 and the PVAP content was 0.8%, both the mechanical properties and water permeability of the PPC were optimal. The compressive strength and permeability coefficient were 14.2 MPa and 14.48 mm/s, respectively. The mechanical properties and water permeability of PPC prepared with 1020 mm NG were better than those prepared with 510 mm NG. Among the three plants, the germination rate and growth of Elymus dahuricus Turcz (EDT) were the best. The incorporation of can optimize its planting properties and promote the effective combination between plants and the PPC substrate.

摘要

透水性种植混凝土（PPC）符合生态环境保护理念。然而，由于其自身的多孔结构，难以同时获得优异的力学性能和透水性，这阻碍了其推广应用。本文采用天然砾石（NG）、普通硅酸盐水泥（OPC）、聚乙烯醇乳胶粉（PVAP）和聚羧酸高效减水剂（PS）制备PPC，并研究其力学性能和透水性。在PPC中种植了三种植物并研究其种植性能。同时，研究了[此处原文缺失相关内容]对种植性能的影响。结果表明，当水胶比（W/B）为0.28且PVAP含量为0.8%时，PPC的力学性能和透水性均最佳。抗压强度和渗透系数分别为14.2MPa和14.48mm/s。用1020mm天然砾石制备的PPC的力学性能和透水性优于用510mm天然砾石制备的PPC。在这三种植物中，披碱草（EDT）的发芽率和生长情况最佳。[此处原文缺失相关内容]的掺入可以优化其种植性能，并促进植物与PPC基质之间的有效结合。

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