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Influencing Factors of Porosity and Strength of Plant-Growing Concrete.
- Source :
-
Materials (Basel, Switzerland) [Materials (Basel)] 2023 Dec 20; Vol. 17 (1). Date of Electronic Publication: 2023 Dec 20. - Publication Year :
- 2023
-
Abstract
- A standardized preparation process is proposed in this study for achieving optimal strength and vegetative properties in vegetated concrete, using Yunnan red soil as a growth substrate for plants. The porosity of vegetated concrete is a crucial factor influencing plant growth, while compressive strength is a significant mechanical property. To assess the strength and porosity of vegetated concrete, different design porosities (22%, 24%, 26%, 28%) and cement-to-aggregate ratios (4, 5, 6, 7) were utilized in the preparation of vegetated concrete samples. The shell-making and static-pressure-molding methods were optimized for specimen preparation. Analyzing the stress-strain full curve characteristics of vegetation-type concrete under different influencing factors, an in-depth investigation into its failure mechanism was conducted. It was determined that the design porosity and cement content significantly impact the concrete's performance, particularly in terms of 30-day compressive strength and effective porosity. Furthermore, an increase in the fly ash ratio led to an increase in porosity and a decrease in compressive strength, providing a certain guidance for optimizing concrete performance. Comparative analysis through vegetation experiments revealed that black rye grass exhibited favorable growth adaptability compared to other grass species.
Details
- Language :
- English
- ISSN :
- 1996-1944
- Volume :
- 17
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Materials (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 38203885
- Full Text :
- https://doi.org/10.3390/ma17010031