Experimental study on size of aggregates, size and shape of specimens on strength characteristics of pervious concrete

Chockalingam, T.; Vijayaprabha, C.; Raj, J. Leon

doi:10.1016/j.conbuildmat.2023.131320

Cited by 22 publications

(4 citation statements)

References 57 publications

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“…The effective porosity of pervious concrete has the most significant influence on its properties [ 14 ]. Its shaping process needs to take into account both the properties of components of the mix–void coefficient of aggregate and its properties [ 49 ], rheological properties of cement paste or mortar [ 50 ], and compaction method and time, as well as mass ratios between different components of the mix, mainly mortar-to-aggregate ratio and cement-to-sand ratio. All those factors impact the susceptibility of the porosity shaping of concrete mix and, inevitably, the effective porosity of pervious concrete.…”

Section: Discussionmentioning

confidence: 99%

Significance of Vibration Time in Developing Properties of Precast Pervious Concrete

Chilmon,

Jaworska,

Kalinowski

et al. 2023

Materials

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Due to its properties, pervious concrete is usually considered a material of choice for permeable surfaces. However, its permeability properties, as well as mechanical performance, depend on its effective porosity. In this paper, the Authors investigated the influence of material and technological factors on the selected properties of pervious concrete. A new method, based on the Vebe consistency test method, was developed to assess the vibration time required to reach a designed effective porosity of pervious concrete. Five classes of pervious concrete’s consistency measured by the modified vebe method were proposed, and the limiting values to determine optimum vibration time were indicated. A model of dependence between the porosity of pervious concrete, its consistency, and compaction time was proposed. It was found that for the assumed range of variability, compaction time and material composition significantly influence the porosity of pervious concrete, and, therefore, all properties of pervious concrete.

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Section: Discussionmentioning

confidence: 99%

Significance of Vibration Time in Developing Properties of Precast Pervious Concrete

Chilmon,

Jaworska,

Kalinowski

et al. 2023

Materials

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“…There is an abundance of published literature on the characteristics, mechanical properties and durability aspects of PC since this type of concrete has been developed some time ago. For example, there is available literature that addresses plain PC [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] as well as PC that incorporates supplementary cementitious materials [18][19][20][21][22]. However, research on PC that contains RCA as partial or full replacement of NA remains relatively scarce, especially in combination with fibers that are capable of compensating for the inferior properties of the recycled aggregate.…”

Section: Literature Reviewmentioning

confidence: 99%

Pervious Concrete Made with Recycled Coarse Aggregate and Reinforced with Date Palm Leaves Fibers

Tamimi,

Tabsh,

El-Emam

2023

Materials

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This study considers 12 pervious concrete mixes incorporating 100% recycled coarse aggregate from old concrete demolition waste and containing various amounts of natural fine aggregate and date palm leaves fibers. First, the properties of the recycled aggregate in terms of their particle size distribution, abrasion resistance, crushing values, specific gravity and water absorption are obtained. Next, the pervious concrete density, compressive strength, tensile strength, permeability and porosity are determined by experimental testing following the relevant standards. The results are analyzed and compared to determine the influence of using recycled coarse aggregate in the mixtures and the impact of the amount of natural sand and volume fraction of the fibers on the mechanical properties, permeability and porosity of the concrete. Findings of the study showed that the use of recycled coarse aggregate in pervious concrete without fine aggregate reduced the compressive strength by 36% and tensile strength by 57%. Replacing 11.7% of the recycled coarse aggregate with natural sand and adding date palm leaves fibers in an amount equivalent to 0.64% volumetric content to such concrete helped increase the compressive strength by 16.2% and tensile strength by 3.2% above the corresponding strengths of the control mix. There is a clear relationship between permeability and porosity due to their correlation with the density of pervious concrete, and the effect of porosity on tensile strength is more influential than it is on the compressive strength. An equation that can predict the tensile strength of pervious concrete from the compressive strength is proposed, as a function of the natural fine aggregate fraction of the coarse aggregate and volumetric content of natural fibers. Results of the research confirm the feasibility of using recycled aggregate in pervious concrete mixes and the positive impact of natural fibers on the mechanical properties.

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“…Many research results have shown that the size and shape of aggregates have a significant impact on the performance of concrete [35,36], and pervious concrete not only meets the performance requirements of ordinary concrete but also increases the demand for permeability. The selection of aggregates also has a certain impact on the dispersion of performance indicators of pervious concrete.…”

Section: Introductionmentioning

confidence: 99%

Research on Statistical Characteristics and Prediction Methods of Ferronickel Slag Pervious Concrete Performance with Different Sizes of Aggregate and Mixtures

Tang,

Peng,

et al. 2024

Buildings

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In the exploration of sustainable construction materials, the application of ferronickel slag (FNS) in creating pervious concrete has been investigated, considering its potential to meet the dual requirements of mechanical strength and fluid permeability. To elucidate the statistical properties and models for predicting the performance of FNS-composited pervious concrete with different sizes of aggregates and mixtures, a series of experiments, including 54 kinds of mixtures and three kinds of aggregate, were conducted. The focus was on measuring the compressive strength and the permeability coefficient. The results indicate that the compressive strength of pervious concrete decreases with the increase in aggregate size, while the permeability coefficient increases with the increase in aggregate size. Through normalization, the variability of these properties was quantitatively analyzed, revealing coefficients of variation for the concrete’s overall compressive strength and the permeability coefficient at 0.166, 0.132, and 0.150, respectively. Predictive models were developed using machine learning techniques, such as Linear Regression, Support Vector Machines, Regression Trees, and Gaussian Process Regression. These models demonstrated proficiency in forecasting the concrete’s compressive strength and permeability coefficient.

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Experimental study on size of aggregates, size and shape of specimens on strength characteristics of pervious concrete

Cited by 22 publications

References 57 publications

Significance of Vibration Time in Developing Properties of Precast Pervious Concrete

Significance of Vibration Time in Developing Properties of Precast Pervious Concrete

Pervious Concrete Made with Recycled Coarse Aggregate and Reinforced with Date Palm Leaves Fibers

Research on Statistical Characteristics and Prediction Methods of Ferronickel Slag Pervious Concrete Performance with Different Sizes of Aggregate and Mixtures

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