Abstract

The conventional methods for controlling urban-flooding are to build raceway networks to transfer flood water away as quickly as possible. However, due to fast increase of urban population, the conventional methods are facing some problems especially when rainfall intensity is higher than design expectation. The main reason for such problems are due to impervious surfaces. Therefore, pervious pavements, such as porous asphalts or pervious concrete blocks, are now recommended to use by environmental engineers. Compared with conventional pavement surfaces, pervious pavements have lots of benefits although they are relatively expensive to build. This paper introduces the mineral rock of Travertine as the materials for pervious pavements, and describes an experimental model to determine the inflation patterns and storm water quality improvement in flood precipitating simulation.
 The results indicated that Travertine pavement can not only decrease more than 90%of Copper, Lead and Zinc but also play an important role in urban-flood management with a 50% decrease of storm water.

Highlights

  • The construction of impervious pavements has been becoming one of the main problems in controlling urban flooding due to the rapid urbanization, which has some negative influence on the urban water cycle

  • The results indicated that Travertine pavement can decrease more than 90%of Copper, Lead and Zinc and play an important role in urban-flood management with a 50% decrease of storm water

  • Porous asphalt pavements are designed with a subsurface reservoir that holds water that passes through the pavement, allowing it to evaporate and/or percolate slowly into the surround soils

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Summary

Introduction

The construction of impervious pavements has been becoming one of the main problems in controlling urban flooding due to the rapid urbanization, which has some negative influence on the urban water cycle. Impervious pavements reduce the runoff infiltration into the ground, so resulting the significant environmental problems. In Australia there are many methods to recycle the runoff. Among those methods, there are some techniques that recycle runoff for nonpotable demands (Hatt et al, 2005). There are some techniques that recycle runoff for nonpotable demands (Hatt et al, 2005) This happens in Germany, the approaches of recycling runoff from urban surface have been expanded (Nodle, 2007). Based on these kind of methods, many new studies for rainwater reuse have been emerged to make urban drainage more sustainable. Pervious pavement is a type of these techniques to treat infiltration water of rainfall to passive storage water (Castro Fresno, 2005)

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