Study on the Coexistence of Porous Ecological Concrete with Plants

Quan, Hong Zhu

doi:10.4028/www.scientific.net/amr.311-313.1551

Cited by 9 publications

(6 citation statements)

References 1 publication

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“…By varying the amount of ACB powder and SCG ash with a fixed water–binder ratio of 0.3, the impact of these materials on the green-growing concrete’s porosity was investigated [ 38 , 39 ]. The specific test results are shown.…”

Section: Test Results and Analysismentioning

confidence: 99%

Utilization Potential of Aerated Concrete Block Powder and Coffee Grounds Ash in Green-Growing Concrete

Li,

Huang,

Chen

et al. 2024

Materials

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The purpose of this research is to investigate the utilization potential of recycled powder made from spent coffee grounds (SCGs) and aerated concrete blocks (ACBs) in green-growing concrete. The green-growing concrete is prepared using ACB powder and SCG ash as raw materials instead of 5%, 15%, and 25% and 5%, 10%, and 15% cement, respectively. Then, the two raw materials are compounded with the optimal content. The compressive strength and alkalinity of green-growing concrete at 7d and 28d and the frost resistance after 25 freeze–thaw cycles at 28d are studied. The results showed that the optimum content of ACB powder and SCG ash was 5%. Replacing 5% cement with recycled powder could improve the strength of concrete. The alkalinity of concrete containing ACB powder gradually increased, while the alkalinity of concrete containing SCG ash gradually decreased. The alkalinity of ACB-SCG powder was lower than that of ACB powder but slightly higher than that of SCG ash. The frost resistance of concrete containing ACB powder decreased gradually, and the frost resistance of concrete containing SCG ash increased first and then decreased greatly. The frost resistance of ACB-SCG powder could neutralize that of ACB powder and SCG ash.

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Section: Test Results and Analysismentioning

confidence: 99%

Utilization Potential of Aerated Concrete Block Powder and Coffee Grounds Ash in Green-Growing Concrete

Li,

Huang,

Chen

et al. 2024

Materials

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“…Porous concrete (POC) is a new type of concrete material with a continuous porous structure, which is composed of coarse aggregate or a small amount of fine aggregate, cementing material and water. Its internal porosity can reach 20%~30%, with good air and water permeability, which can adapt to plant growth and increase the environmental benefits of the project [ 18 , 19 , 20 ]. However, the unique porous structure also limits the overall mechanical properties, causing this material to be mainly used in low-strength engineering.…”

Section: Introductionmentioning

confidence: 99%

Prediction Model for Compressive Strength of Porous Concrete with Low-Grade Recycled Aggregate

2021

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As the first batch of products after the resource utilization of construction and demolition waste, low-grade recycled aggregate (RA) has not been fully utilized, which hinders the development of the comprehensive recycling industry of construction waste. Therefore, this paper studies the mechanical properties of porous concrete (POC) with low-grade RA. An improved relationship between porosity and compressive strength of brittle, porous materials is used to express the compressive strength of POC with recycled aggregate (RPOC), and the prediction for compressive strength of porous concrete with low-grade RA is constructed by analyzing the mechanism of compressive damage. The results show: the compressive strength of porous concrete decreases with the addition of low-grade recycled aggregate, but the effect is not obvious when the replacement rate is less than 25%. The error range of the relationship between porosity and compressive strength of RPOC is basically within 15% after improvement. The prediction model for compressive strength based on the ideal sphere model of aggregate can accurately reflect the compressive strength of porous concrete with low-grade RA. The results of this study can provide a reference for the staff to learn about the functional characteristics of recycled products in advance and provide security for the actual project.

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“…Some researchers have carried out an impact analysis of the components and mix ratio, the basic mechanical properties, and void and alkaline testing of grass-planting concrete [4][5][6][7]. It has been found that the strength viability of porous concrete depends not only on the void, but also on the size of the coarse aggregate and the water-cement ratio [8][9][10]. To meet void requirements, the strength of concrete may be reduced by using less mortar [11], and other materials such as limestone powder, ganister powder, and fly ash are used to replace cement and achieve high compressive and tensile strength of the concrete [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation and Field Application of Prefabricated Grass-Planting Concrete Blocks with Concave-Convex Construction for Mid-Sized and Small River Revetment Projects

Jiang¹,

Liu²

2021

Pol. J. Environ. Stud.

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Study on the Coexistence of Porous Ecological Concrete with Plants

Cited by 9 publications

References 1 publication

Utilization Potential of Aerated Concrete Block Powder and Coffee Grounds Ash in Green-Growing Concrete

Utilization Potential of Aerated Concrete Block Powder and Coffee Grounds Ash in Green-Growing Concrete

Prediction Model for Compressive Strength of Porous Concrete with Low-Grade Recycled Aggregate

Performance Evaluation and Field Application of Prefabricated Grass-Planting Concrete Blocks with Concave-Convex Construction for Mid-Sized and Small River Revetment Projects

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