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[Performance Assessment of Permeable Interlocking Concrete Pavement Facility Structure]
Jia-Wei Zhang1, Yong Liu1, Jian-Rong Jin1
1College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
Huan Jing Ke Xue= Huanjing Kexue
|July 2, 2020
Summary
Permeable interlocking concrete pavements (PICP) with cement-stabilized crushed stone bases offer superior stormwater management. These permeable pavements significantly reduce runoff volume and improve effluent water quality compared to traditional options.
Area of Science:
- Environmental Engineering
- Urban Hydrology
- Material Science
Context:
- Urbanization increases impervious surfaces, leading to stormwater runoff issues.
- Permeable interlocking concrete pavements (PICP) are explored as a sustainable drainage solution.
- This study compares PICP performance with different base course materials in Shanghai.
Purpose:
- To evaluate the hydrological and water quality performance of PICP systems.
- To compare the effectiveness of cement-stabilized crushed stone versus crushed stone as base materials.
- To assess the impact of base course on stormwater runoff reduction and pollutant removal.
Summary:
- Two PICP systems with different base materials (cement-stabilized crushed stone - PICP1, crushed stone - PICP2) and one impervious pavement were monitored under natural rainfall.
- PICP1 and PICP2 achieved annual total volume reduction rates of 37.0% and 38.7%, respectively.
- PICP1 demonstrated slightly better peak flow reduction and pollutant removal (TSS, TP, PP, DP, NH4+-N) than PICP2, though both released NO3--N.
Impact:
- PICP with cement-stabilized crushed stone bases significantly enhances stormwater management.
- This research provides valuable data for designing effective permeable pavement systems in urban environments.
- Findings support the use of optimized PICP designs for improved urban water quality and reduced flood risk.
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