TY - JOUR AB - Permeable pavement is utilised in order to alleviate flooding in towns, cities and other urban areas, but it is prone to clogging, has relatively low strength and requires regular maintenance. We have developed a novel permeable pavement with low tortuosity pore structure that can be cast on-site that is not only resistant to clogging, but also has high permeability and strength. This high strength clogging resistant permeable pavement (CRP) was prepared by introducing straight pore channels of varying size and number into self-compacting mortar. Samples with porosity ranging from 2 to 32% were tested. In all cases, permeability and compressive strength were substantially higher than conventional permeable concrete. More significantly, CRP can be engineered with low porosity (5%), high strength (> 50MPa) and high permeability (> 2cm/s), but does not clog despite extensive cyclic exposure to flow containing sand and clay. A simple method to model the permeability of CRP from the pore structure is described. We report for the first time a high strength clogging resistant permeable pavement capable of retaining sufficient porosity and permeability for storm-water infiltration without requiring frequent maintenance. This innovative system will help alleviate urban flooding and contribute towards a more sustainable urbanisation. AU - Kia,A AU - Wong,H AU - Cheeseman,C DO - 10.1080/10298436.2019.1600693 EP - 282 PY - 2019/// SN - 1029-8436 SP - 271 TI - High-strength clogging resistant permeable pavement T2 - International Journal of Pavement Engineering UR - http://dx.doi.org/10.1080/10298436.2019.1600693 UR - https://www.tandfonline.com/doi/full/10.1080/10298436.2019.1600693 UR - http://hdl.handle.net/10044/1/69689 VL - 22 ER -
Transition to Zero Pollution is a flagship initiative of the Imperial's Academic Strategy, with a vision to realise a sustainable zero pollution future. The initiative brings researchers from different disciplines together to take a systems approach to tackling pollution in all its forms.