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Mixing Ratio and Properties of Vegetation Concrete for the Ecological Slope Protection

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DOI: 10.23977/EECTM2020.036

Author(s)

Wei Chen, Sijia Mou, Zhanyuan Zhu, Di Li, Siguang Lu, Zhonghang He and Haifeng Lin

Corresponding Author

Zhanyuan Zhu

ABSTRACT

One of the most efficient and environmentally friendly methods for preventing a slope is to vegetate it. Vegetation concrete, an important environmental protection material, has a promising potential for developing ecological slope protection. In this study, the method of preparation, physical mechanical properties and suitable plant species under the target porosity of 30% were developed and explored, based on the mix proportion design and planting test of vegetation concrete. The results indicate that the aggregate particle size, water-cement ratio, cement content and grade are key factors affecting strength, under the target porosity. Investigations find a design method which is suitable for vegetation concrete, can be obtained for the porosity of 30%, water-cement ratio of 0.3, cement content of 250kg/m3, aggregate particle size of 10~15mm. In planting test, Sasa argenteostriata has the best tendency of growth, the roots are strong and can be perfectly combined with vegetation concrete, to form an organic whole of root-concrete-soil.

KEYWORDS

Vegetation concrete, mix proportion, target porosity of 30%, strength, plant species

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