Experimental and numerical investigation on the development of pore clogging in novel porous pavement based on polyurethane

Conference paper (2021)

Authors

Guoyang Lu The Hong Kong Polytechnic University
H. Wang Pavement Engineering - CEG
Pengfei Liu Rheinisch-Westfälische Technische Hochschule
Zhen Leng The Hong Kong Polytechnic University
Markus Oeser Rheinisch-Westfälische Technische Hochschule
Research Group
Pavement Engineering (CEG) (TU Delft)
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Published Date

2021

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Pavement Engineering

Abstract

Permeable pavements are often affected by pore clogging, which leads to their functional failure and reduced service life. However, the clogging mechanism and its impact on the permeability and complex pore microstructures in pervious pavement remains unclear. The aim of current study is to quantify the clogging behavior in pervious pavement materials and carry out investigations on the development of pore characteristics and permeability. Novel Polyurethane bound pervious mixture (PUPM) were adopted for comparative study in present research with conventional Porous Asphalt (PA). The Aachen Polishing Machine (APM) was selected to perfectly serve as a simulator for clogging process of pavement in the actual service condition. The development of pore characteristics in terms of clogging was experimentally illustrated. The developed experiments and analysis can further strengthen the understanding of the clogging mechanism within the porous pavement material.