Experimental study on the vegetation characteristics of biochar-modified vegetation concrete

Zhao, Min; Jia, Yinghui; Long, Yuan; Qiu, Jing; Xie, Chao

doi:10.1016/j.conbuildmat.2019.01.238

Cited by 31 publications

(9 citation statements)

References 45 publications

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“…For integration of vegetation with concrete, porous concrete is used as the medium so that water, air, soil and roots can pass freely and vegetation can germinate and root itself through the porous concrete frame and into the underlying soil stratum [7]. Vegetation concrete (VC) laid as a reinforcement base and covered by a soil layer with vegetation has been increasingly used to beautify the landscape, reduce environmental pollution and control stormwater runoff [7,8]. It is crucial to understand the effects of different concrete contents on seed germination and seedling establishment so that the appropriate concrete content range in for application of VC can be determined [9].…”

Section: Introductionmentioning

confidence: 99%

“…)-modified VC. For instance, Zhao et al [8] examined the effects of fly ash slag and superplasticizer on VC, and experimental results showed that Chloris truncata was better adapted to the VC environment than Elymus scaber and Themeda trianda, although Elymus scaber thrived with a remarkable coverage with high fly ash content and Themeda trianda preferred a lower fly ash content. Bao et al [32] used self-made reducing cement and alkaline admixture with silica fume as the main component; the effect of this admixture on vegetation growth was investigated in a small-scale field for ten weeks.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Municipal Solid Waste on Planting Properties and Scouring Resistance of Vegetation Concrete (Wuhan, China)

Kong

Wang

Guo

et al. 2022

IJERPH

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Vegetation concrete (VC) laid as a reinforcement base and covered by a soil layer with vegetation has been increasingly used to beautify the landscape, reduce environmental pollution and control stormwater runoff. In this study, the effects of municipal solid waste (MSW) on vegetation characteristics of modified VC were tested under different mix compositions. We first explored the effects of the mixed concrete environment on Festuca elata and perennial Ryegrass for 60 days. Then, the influence of various MSW contents added to different percentages of cement on scouring resistance of VC was examined. The experimental results revealed that the germination rates and plant heights of both species decreased with the increase in concrete content. Considering the scouring resistances, the optimal mix proportion of MSW-modified VC was recommended as No. 25, with 5% KW fertilizer, 8% cement and 0.5% wheat straw in this study. Furthermore, adding a small amount of fallen leaves or silica fume to VC can promote the growth of both species to some extent, although these additions had an inverse effect on the scouring resistances. The results contribute to beneficial knowledge for future research on the feasibility of the use these species with VC technology for slope ecological restoration.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Municipal Solid Waste on Planting Properties and Scouring Resistance of Vegetation Concrete (Wuhan, China)

Kong

Wang

Guo

et al. 2022

IJERPH

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“…Up till now, several literatures about vegetation concrete have been reported, etc. . Some researchers planted vegetation on the surface of eco‐porous concrete (EPC), and the vegetation mainly relies on the surface soil to sustain life .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, based on the analysis of pore characteristics, this paper puts forward the structural compatibility evaluation index and simulation method. Usually, the compatibility is obtained through real vegetation planting test . And, it will consume amount of time.…”

Section: Introductionmentioning

confidence: 99%

Research on structural compatibility of eco‐porous concrete and vegetation

Zhang

Yin

2020

Materialwissenschaft Werkst

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To investigate the structural compatibility of eco‐porous concrete (EPC) and vegetation, a simulation method (sand penetration coefficient) of structure compatibility between the eco‐porous concrete (EPC) and vegetation was put forward. Furthermore, the relation between sand penetration coefficient and pore characteristics were analyzed, and the technology of acquiring equivalent pore size was optimized. The results present that the new simulation method, characterized by sand penetration coefficient, can effectively assess the ability of eco‐porous concrete (EPC) to allow the root system to pass through. In addition, the real pore structure shape by “rubbing technology” can be easily and quickly obtained.

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“…Li et al [10] used a spray seeding technology of higher-order granules to repair an abandoned quarry, with the resultant vegetation coverage rate up to 95%. Zhao et al [11] carried out experimental research on the characteristics of vegetation concrete, obtained the optimum mix ratio of biochar modified vegetation concrete, and concluded that the addition of biochar particles can improve the characteristics of vegetation concrete. Among the many developed ecological restoration techniques, vegetation concrete slope protection greening technology has been widely used in practical engineering owing to the specific formula for the substrate for vegetation concrete (SVC) and seed, as well as its excellent performance in various types of hard slopes and high-steep slopes with gradients greater than 45°, as shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of Substrate for Vegetation Concrete from Large-Scale Shaking Table Test

Wang

Huang

et al. 2020

Shock and Vibration

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The substrate for vegetation concrete is a new type of plant substrate used for slope protection. While it has demonstrated good performance in slope protection and a greening effect, the sustainability of ecological restoration projects is difficult and there are significant construction risks in areas with frequent earthquakes. In this study, a new type of substrate for vegetation concrete was developed for areas with frequent earthquakes, and a shaking table test was performed to evaluate the seismic performance. The test results indicated that the proposed substrate of the vegetation concrete displayed good stability under seismic excitation at earthquake intensities of V, VI, VII, and VIII. A comparison of several different reinforcement methods under seismic conditions indicated that wavy laying of a flexible net was the best reinforcement method. Through observation of the displacement time history curve and macroscopic phenomenon, the failure process of the substrate layer was obtained and consisted of the following three stages: cracking between substrate layer and bedrock, internal cracking of the substrate layer, and vibration crushing. Ultimately, the research results have significant reference value for ecological restoration projects using substrates for vegetation concrete in areas with frequent earthquakes.

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Experimental study on the vegetation characteristics of biochar-modified vegetation concrete

Cited by 31 publications

References 45 publications

Effects of Municipal Solid Waste on Planting Properties and Scouring Resistance of Vegetation Concrete (Wuhan, China)

Effects of Municipal Solid Waste on Planting Properties and Scouring Resistance of Vegetation Concrete (Wuhan, China)

Research on structural compatibility of eco‐porous concrete and vegetation

Seismic Performance of Substrate for Vegetation Concrete from Large-Scale Shaking Table Test

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