Experimental Research on Pervious Concrete Mixed with Polypropylene Split Fiber(PPSF)

Gao, Run Dong; Xu, Qing Feng; Li, Xiang Min; Du, Min

doi:10.4028/www.scientific.net/amr.1065-1069.1894

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…The porosity of permeable concrete determines the permeability of permeable concrete. Gao [11] studied the effect of polypropylene fiber on the properties of permeable concrete, when the content of the polypropylene fiber was 3 kg/m 3 , the permeability coefficient of permeable concrete decreased, and its mechanical properties and durability were the best. Lian [12] used three kinds of rock as a coarse aggregate to study the mechanical properties of permeable concrete.…”

Section: Background and Significancementioning

confidence: 99%

Study on the Basic Mechanical Properties and Discrete Element Method Simulation of Permeable Concrete

Xiao,

Hu,

et al. 2023

Sustainability

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Permeable concrete pavement material has many voids and a good water permeability, which can reduce surface runoff and alleviate the problem of urban water logging. It also has the functions of acting as a supplementary source of groundwater, purifying water, bodies reducing the urban heat island effect, reducing road noise, and so on. It is an effective solution for urban infrastructures. However, at the same time, because it has a large number of pores, this also affects the strength of permeable concrete. The main factors affecting permeable concrete are particle size and the shape of the aggregate, the content of the cement paste and aggregate, the compaction degree of the mixture, and so on. In this study, the single-factor test method was used to study the effects of aggregate size, slurry-to-bone ratio and loose paving coefficient on the basic mechanical properties and permeability of permeable concrete. Here, the numerical model for permeable concrete is established by using the particle flow discrete element (Particle Flow Code (PFC)modeling method, and a numerical simulation test is carried out. It can be seen from the test results that the permeability coefficient of 50% 5–10 mm + 50% 10–15 mm mixed aggregate permeable concrete is slightly lower than that of 5–10 mm and 10–15 mm single-size aggregate, but has a higher compressive and splitting tensile strength. With the increase in paste-to-bone ratio, the permeability coefficient of permeable concrete decreases, and the compressive strength increases. The loose paving coefficient has a significant effect on the mechanics and permeability of permeable concrete with the increase in the loose paving coefficient, the water permeability decreases and the compressive strength increases. The numerical simulation results show that under the condition that the loose paving coefficient is 1.10 and the slurry-to-bone ratio is 0.5, compared with the experimental results, the error of the numerical simulation results of the compression test is less than 3%. The reliability of the simulation is verified. The discrete element modeling method in this study can be used to simulate the shape of the aggregate in permeable concrete, and the numerical model can effectively simulate the crack development and failure form of permeable concrete in compression tests.

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Section: Background and Significancementioning

confidence: 99%

Study on the Basic Mechanical Properties and Discrete Element Method Simulation of Permeable Concrete

Xiao,

Hu,

et al. 2023

Sustainability

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“…With the advantages of lighter weight and higher corrosion resistance [7], SF can prevent drying shrinkage cracking of concrete [4] and is expected to improve the durability and lifetime of concrete structures [8]. Besides, SF is easy to disperse with less agglomeration in concrete compared to polypropylene fiber [9]. BF is extracted from volcanic basalt rock and is a kind of environmentally friendly material [5], possessing high elastic modulus, tensile strength, and excellent resistance to alkaline and high temperature [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fiber Hybridization, Strain Rate and w/c Ratio on the Impact Behavior of Hybrid FRC

et al. 2019

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Concrete in practical applications has to inevitably suffer various impact loads. Recent research indicates that the hybrid fiber reinforced concrete (FRC) has better dynamic mechanical properties compared to the mono FRC under impact loading. Based on macro-experimentation and micro-observation, the impact behavior of the hybrid basalt-macro synthetic polypropylene FRC (BSFRC) was investigated by using ∅74 mm SHPB, SEM, and EDS. The effects of fiber hybridization, strain rate, and w/c ratio were analyzed simultaneously. The results show that the dynamic mechanical properties of BSFRC are strain-rate sensitive. Both basalt and macro synthetic polypropylene fibers (BF, SF) have a strengthening and toughening effect on concrete. Their hybridization has a similar enhancement effect but the impact toughness of concrete is further improved and the best hybrid ratio is 0.05%(BF)–0.25%(SF). BSFRC with higher w/c ratio has a higher strain rate effect while the fiber hybridization effect is weakened. Besides, the proposed constitutive model can well describe the impact behavior of BSFRC. The hydration of cement in the interface transition zones is lower with more Calcium Silicate Hydrate and less Ca ( OH ) 2 than that in the common mortar. However, the addition of BF and SF contributes to the hydration of cement and improves the performance of concrete eventually.

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Analysis of the mechanical properties and prediction of damage life for GBFS-HPMC/fibre pervious concrete after seawater erosion

Yan,

Wang,

Sun

et al. 2024

Road Materials and Pavement Design

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Experimental Research on Pervious Concrete Mixed with Polypropylene Split Fiber(PPSF)

Cited by 3 publications

References 2 publications

Study on the Basic Mechanical Properties and Discrete Element Method Simulation of Permeable Concrete

Study on the Basic Mechanical Properties and Discrete Element Method Simulation of Permeable Concrete

Effect of Fiber Hybridization, Strain Rate and w/c Ratio on the Impact Behavior of Hybrid FRC

Analysis of the mechanical properties and prediction of damage life for GBFS-HPMC/fibre pervious concrete after seawater erosion

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