Effect of Water Head, Gradation of Clogging Agent, and Horizontal Flow Velocity on the Clogging Characteristics of Pervious Concrete

Yuan, Jiayi; Chen, Xudong; Liu, Saisai; Li, Shengtao; Shen, Nan

doi:10.1061/(asce)mt.1943-5533.0002410

Cited by 17 publications

(6 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, the permeability of pervious concrete is due to its macropore structure. However, as the use of pavement concrete becomes longer, the pores of pervious concrete are easily clogged by various small particles [4][5][6][7]. The permeability of pervious concrete helps to reduce heat island phenomena, traffic noise, and provides better condition for recharging the underground water source.…”

Section: Introductionmentioning

confidence: 99%

“…Accumulation of the fine particles in the pores of the pervious pavement causes blockages and deposits, which are mainly related to the size of the clogging particles [4,10,11,14]. Although a series of studies [4,7,14,15] on the particle size have been conducted, there is little literature associated with the combined influence of particle size and pore size on clogging because it is difficult to accurately measure the pore size of pervious concrete. In order to solve this problem, recently, research has been conducted to determine the pore blockage of pervious concrete using the CT scanning method [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Permeability and Strength of Pervious Concrete According to Aggregate Size and Blocking Material

et al. 2021

View full text Add to dashboard Cite

The purpose of this study is to identify the differences in porosity and permeability coefficients when the mixing ratio of aggregates is different and to present the mixing ratio satisfying the strength requirement of compressive specified in a specification of Korea. Three mix ratios were suggested by considering various aggregate sizes and three cylinders were made for each ratio. The porosities of those cylinders were evaluated through the compression and water permeability test, measuring the weight of specimens in underwater and analysis of the pictured Computed Tomography (CT) image. Experiments have shown that it is best to mix 50% for 5–10 mm aggregates, 45% for 2–5 mm aggregates, and 5% for sand in terms of strength and permeability. In addition, as the proportion of fine aggregates increased, the porosity and permeability decreased. Moreover, the effectiveness of maintenance method was also examined in this study.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Permeability and Strength of Pervious Concrete According to Aggregate Size and Blocking Material

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In the case of strong rain, there will still be water accumulation on the road. From the trend of the three-dimensional surface map, it can be seen that the B factor has a significantly higher permeability coefficient after clogging of PC [57]. e shape of the contour line in Figure 12 is approximately elliptical, indicating that the interaction between factor A and factor C is obvious.…”

Section: Porosity Analysis Of Clogging Of Pcmentioning

confidence: 96%

Comprehensive Test and Evaluation Analysis of Permeable Concrete (PC) Clogging by Using Steel Slag

Cao

Shah

Wang

et al. 2022

Advances in Civil Engineering

View full text Add to dashboard Cite

In recent decade, researchers have more attention to water resource protection and forward the concept of sponge city construction. PC is becoming more and more popular as a rainwater management tool because of fast climate changes worldwide. In this experiment, PC specimens were prepared with steel slag as aggregate, and the targeted porosity of specimens was 15%, 20%, and 25% respectively, and the ratio of water to cement was 0.38, 0.4, and 0.42. The PC specimens under the 200 mm high head are the most severely blocked; 0.283 m/s high-speed horizontal runoff appears after the rapid plugging stage later in the other two types of speed tests. With time, the plugging effect of the test specimen is almost the same; the clogging degree of the PC sample with the porosity of 25% is more obvious than that of other porosity test specimens. The PC with large porosity is more serious to clogging because the higher seepage velocity will enter the internal tunnel with higher penetration force, which increases the possibility of clogging. Tests have shown that, at different rainwater runoff head heights, the PC specimens under the 200 mm high head are the most severely blocked; 0.283 m/s high-speed horizontal runoff appears after the rapid plugging stage later in the other two types of speed tests but over time. With time, the plugging effect of the test specimen was almost the same; the clogging degree of the permeable concrete sample with the porosity of 25% is more obvious than that of other porosity test specimens. While it is noticed that the compressive strength of the PC after clogging has decreased in the freeze-thaw environment, the destruction process is faster than the unblocked test specimen.

show abstract

“…Besides, the solution creates favorable conditions for infiltrating rainwater into the ground, increasing groundwater reserves, reducing the "urban heat island" effect, and providing a suitable environment for microorganisms in the soil to grow [5][6][7][8]. However, during the long-term service of this concrete in the pavement structures, the pores of PC are easily blocked by various small particles [9][10][11][12]. When residues from decomposing leaves, soil, and dust from the surrounding environment penetrate the pores, the water permeability is significantly reduced or even causes a complete blockage.…”

Section: Introductionmentioning

confidence: 99%

“…Deo et al found that the clogging effect relatively occurs when the porosity ranges from 10 ÷ 20% and the clogging particle size is from 0.1 to 0.25 mm [10]. Similarly, another typical study on clogging materials and maintenance processes was conducted by Yuan et al [12]. In this research, three kinds of clogging materials, ranging from 0 to 2.55 mm, were selected to demonstrate the clogging process of the pavements without cleaning and maintenance over a period of 20 years.…”

Section: Introductionmentioning

confidence: 99%

Research and Production of Permeable Concrete as a Sustainable Surface Layer for Urban Infrastructures and the Effect of Maintenance Method on Its Infiltration Capacity

Nguyen

et al. 2022

tvujs

View full text Add to dashboard Cite

Recently, permeable concrete has been considered one of the "Best Management Practices" in rainwater collection and cleaning. The outstanding properties of this type of concrete are its relatively high porosity (typically 15 ÷ 30% in volume) and the linking/connection of the internal pore system resulting in high waterpermeability and retention. However, one of the limitations to the widespread application of this eco-friendly material is the decrease of permeable capacity over time due to the clogging materials and the lack of regular maintenance. This paper performs an experimental approach for manufacturing permeable concrete that has both high water permeability and meets the strength requirement (1). At the same time, the influence of clogging sand and typical maintenance methods on the infiltration rate of permeable or pervious concrete is presented (2). Based on the literature review and obtained experimental results in this study, maintenance measures to ensure the required permeability for urban surface structures and sustainable surface waterdrainage are also proposed (3).

show abstract

Effect of Water Head, Gradation of Clogging Agent, and Horizontal Flow Velocity on the Clogging Characteristics of Pervious Concrete

Cited by 17 publications

References 17 publications

Permeability and Strength of Pervious Concrete According to Aggregate Size and Blocking Material

Permeability and Strength of Pervious Concrete According to Aggregate Size and Blocking Material

Comprehensive Test and Evaluation Analysis of Permeable Concrete (PC) Clogging by Using Steel Slag

Research and Production of Permeable Concrete as a Sustainable Surface Layer for Urban Infrastructures and the Effect of Maintenance Method on Its Infiltration Capacity

Contact Info

Product

Resources

About