State of the art on the mechanical properties of pervious concrete

Seifeddine, Khaled; Amziane, Sofiane; Toussaint, Évelyne

doi:10.1080/19648189.2021.2008511

Cited by 17 publications

(2 citation statements)

References 99 publications

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“…Pore structure properties are direct factors affecting the basic properties of porous concrete, such as compressive strength and permeability [ 13 ]. The type, shape, and size of the coarse aggregates and the water–cement ratio are influencing factors that greatly affect the physical and mechanical properties of the planting concrete, such as porosity and strength [ 14 ]. Lian [ 15 ] and Jang [ 16 ] established a significant correlation between compressive strength and porosity in vegetated concrete.…”

Section: Introductionmentioning

confidence: 99%

Influencing Factors of Porosity and Strength of Plant-Growing Concrete

Cai,

Shen,

et al. 2023

Materials

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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.

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Section: Introductionmentioning

confidence: 99%

Influencing Factors of Porosity and Strength of Plant-Growing Concrete

Cai,

Shen,

et al. 2023

Materials

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“…The greater the porosity of the planting concrete, the more space there is for plant growth and the better the plants will grow; however, higher porosity leads to lower strength for concrete [ 6 ]. The type, shape, and size of the coarse aggregates and the water–cement ratio are influencing factors that greatly affect the physical and mechanical properties of the planting concrete, such as porosity and strength [ 7 , 8 ]. Kim et al [ 9 ] replaced the natural coarse aggregate with blast furnace slag, and when the blast furnace slag aggregate was replaced from 0 to 100%, the porosity of the planting concrete increased from 15 to 27.5%.…”

Section: Introductionmentioning

confidence: 99%

Effect of Aggregate Size and Water/Cement on Compressive Strength and Physiological Performance of Planting Concrete

Chen

Zhao

et al. 2022

Materials

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Planting concrete, an eco-friendly concrete in which plants can grow directly, has been widely used in roof greening and the slopes of rivers. Porosity and compressive strength are important indicators for evaluating the properties of planting concrete. By preparing planting concrete with different aggregate gradations (10–30 mm, 20–40 mm) and water–cement ratios (0.25, 0.27, 0.29, 0.31, 0.33), the effect of aggregate gradation and water–cement ratio on the porosity and compressive strength of the planting concrete was analyzed, the intrinsic relationship between aggregate gradation and plane pore parameters was studied, the strength growth pattern and microscopic strengthening mechanism were studied, the relationship between porosity and compressive strength of the planting concrete were explored, and a tall fescue planting experiment was carried out to evaluate the plantation performance of the planting concrete. The results show that under the same conditions of water–cement ratio, the smaller the particle size of the aggregate, the smaller the porosity of the plane, and the denser the structure. The average diameter of the planting concrete shows an exponential relationship with the porosity of plane. The early growth of the compressive strength of the planting concrete is rapid; the compressive strength has a linear relationship at the ages of 7 days and 28 days. Compared to polynomial and logarithmic functions, the exponential function gives a better insight into the relationship between the porosity and compressive strength of the planting concrete. Tall fescue seeds germinate and grow well; height, cover, and leaf rootstock and element content of plants can be used as indicators to assess the performance of vegetated concrete planting.

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A study on properties of pervious concrete with high-volume usage of supplementary cementitious materials as substitutes for cement

Srikanth

kumar²

2023

Asian J Civ Eng

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State of the art on the mechanical properties of pervious concrete

Cited by 17 publications

References 99 publications

Influencing Factors of Porosity and Strength of Plant-Growing Concrete

Influencing Factors of Porosity and Strength of Plant-Growing Concrete

Effect of Aggregate Size and Water/Cement on Compressive Strength and Physiological Performance of Planting Concrete

A study on properties of pervious concrete with high-volume usage of supplementary cementitious materials as substitutes for cement

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