Development of Test Equipment for Evaluating Hydraulic Conductivity of Permeable Block Pavements

Ahn, Jaehun; Marcaida, Aryssa Kathreen; Lee, Yoongeun; Jung, Jongwon

doi:10.3390/su10072549

Cited by 5 publications

(5 citation statements)

References 20 publications

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“…Specimens with dimensions of 0.3 × 0.3 × 0.05 m and porosity of 19.6% were tested. The horizontal permeability was evaluated according to a procedure developed by Ahn et al [23], and the vertical permeability was examined using a constant head procedure presented in Ahn et al [24]. A summary of the two test procedures is presented in Figures 3 and 4 From the experimental results, the horizontal and vertical permeabilities were 11.1 and 9.2 mm/s, respectively.…”

Section: Materials Parametersmentioning

confidence: 99%

Numerical Study on the Hydrologic Characteristic of Permeable Friction Course Pavement

Nguyen

Ahn

2021

Water

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The hydrologic characteristic of a permeable friction course (PFC) pavement is dependent on the rainfall intensity, pavement geometric design, and porous asphalt properties. Herein, the hydrologic characteristic of PFC pavements of various lengths and slopes was determined via numerical analysis. A series of analyses was conducted using length values of 10, 15, 20, and 30 m and slope values of 0.5%, 2%, 4%, 6%, and 8% for the equivalent water flow path. The PFC pavements were simulated for various values of rainfall intensity, which ranged from 10 to 120 mm/h, to determine the time taken for water to flow over the PFC pavement surface. The results show that the time for water overflow decreased when the pavement length or rainfall intensity increased, and it increased when the slope increased. Finally, a series of design charts was developed to determine the time taken for water to flow over the PFC pavement surface for given rainfall intensities. Since this study was conducted based on numerical analysis, further studies are recommended to verify experimentally the results presented.

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Section: Materials Parametersmentioning

confidence: 99%

Numerical Study on the Hydrologic Characteristic of Permeable Friction Course Pavement

Nguyen

Ahn

2021

Water

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“…and field tests [11,12]. However, their effectiveness as a LID for a specific case has to be estimated at an urban scale, which is usually carried out by numerical simulations carried out with appropriate software.…”

Section: Types Of Pervious Pavements (Pps)mentioning

confidence: 99%

“…PPs have a major role in allowing water infiltration, which improves city resilience to rainfall events [7][8][9][10]. Their hydraulic performance can be assessed by both laboratory and field tests [11,12]. However, their effectiveness as a LID for a specific case has to be estimated at an urban scale, which is usually carried out by numerical simulations carried out with appropriate software.…”

Section: Introductionmentioning

confidence: 99%

Numerical Comparison of the Hydrological Response of Different Permeable Pavements in Urban Area

Celauro

2022

Sustainability

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Floods are becoming more frequent, especially in urban environments where most of the surface is waterproofed. Permeable pavement (PP) can be applied as low impact development (LID) systems for runoff mitigation in urban areas. Their effectiveness can be assessed, case by case, by numerical simulations. In this study, the effectiveness of mitigating runoff of different permeable pavements has been evaluated. In particular, porous asphalt (PA), pervious concrete (PC), permeable interlocking concrete pavement (PICP) and grid pavement (GP) have been investigated using EPA Storm Water Management Model (SWMM) software. To this aim, a car parking area located in the University Campus of Palermo (Italy) has been taken as a case study, considering several scenarios, each having a different percentage and planimetric layout of a PP type combined with an impermeable pavement. All the scenarios were tested assuming four synthetic rainfall events, referring to return periods of 5, 10, 50 and 100 years, and a real high return period event that occurred in Palermo in 2020. The results showed that amongst the different PPs considered, only the PA, bounded at the bottom by an impermeable layer, was practically ineffective. The other three PPs, proved to be effective in a noticeable way and furthermore for each scenario studied, they proved to bear almost the same mitigated runoff. The results proved appreciable differences in runoff as a function of the location of the PP over the study area.

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“…The fluid velocity in pavement need to be measured however there is limitation in the methodology to measure it. One of recent methodology IOP Publishing doi:10.1088/1755-1315/1135/1/012017 2 introduce by Ahn et al [4], FLOW-3D provided a comprehensive CFD simulation platform to investigate the dynamic behaviour of liquids and gas in a wide range of industrial applications and physical processes. This method was tested in pavement study which is made by Rashid et al [5] and the result shows that there were 5 seconds differences between the observed and computed results using FLOW 3D.…”

Section: Introductionmentioning

confidence: 99%

Study of Velocity, Flow Depth and Froude Number of HDPE Diagonal Modular Pavement Using FLOW 3D

Amirah

Boon

Nihla

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Modular pavement studies traditionally using physical modelling appear to be relatively expensive and risk substantial losses. Because of that, numerical simulation studies are a smart way to either create a new design or build a modular pavement on site before starting. This research examined the correlation of xyz velocity, flow depth and Froude number in a diagonal HDPE modular pavement using FLOW 3D. The simulations use Malaysian actual rainfall data to assess the ability of diagonal pavements to diffuse rainfall. The parameters xyz velocity, flow depth and Froude number were taken to see the absorbed rainfall capacity and the results show that the velocities x and y are greater than the velocities z. The flow depth was maintained at 425.6522 mm during the 600s and 6000s throughout the rainfall events for rainfall intensities of 5 mm/h and 85mm/h. Froude’s number is lower than zero. This FLOW 3D software is suitable as a modular pavement modelling since the velocity, flow depth and Froude number are closely related to the previous study. FLOW 3D can be used as an preliminary method for designing modular pavements.

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Development of Test Equipment for Evaluating Hydraulic Conductivity of Permeable Block Pavements

Cited by 5 publications

References 20 publications

Numerical Study on the Hydrologic Characteristic of Permeable Friction Course Pavement

Numerical Study on the Hydrologic Characteristic of Permeable Friction Course Pavement

Numerical Comparison of the Hydrological Response of Different Permeable Pavements in Urban Area

Study of Velocity, Flow Depth and Froude Number of HDPE Diagonal Modular Pavement Using FLOW 3D

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