Pervious Concrete Technology for Urban Roads and Pavements

Sustainable Solution to Mitigate Waterlogging and Flashfloods in Urban Conglomerates

Avishreshth, Doctoral Research Scholar, Department of Civil Engineering, Indian Institute of Technology Tirupati, Andhra Pradesh, India, Anush K. Chandrappa, Engineer, Design and Technical Audit Department, Dilip Buildcon Limited, Bhopal, India, Prasanna Venkatesh Sampath, Assistant Professor, Krishna Prapoorna Biligiri, Associate Professor, Department of Civil Engineering, Indian Institute of Technology Tirupati, Andhra Pradesh, India

Introduction

In recent years, the rise in employment and higher standard of living, amongst numerous other factors, has led to a gradual shift of people from rural to urban conglomerates, consequential of increased urbanization. Since then, the construction of houses, buildings, and road pavements has increased exponentially, covering the natural pervious ground and converting it into impervious fabric [1]. It is expected that more than 53% of the emerging world and 83% of the developed world will be urbanized by 2050 [2]. Although, this is a healthy sign for socio-economic development, it manifests several facets of environmental degradation.

Environmental Impacts of Impervious Pavement Surfaces

Road pavements constitute about 20-40% of impervious surfaces in an urban conglomerate [3]. Pavement surfaces are fundamentally built to ensure better connectivity of men and materials to various destinations. However, this results in a multitude of detrimental effects on the environment, which can be broadly classified as variations in hydrological facets and change in the ambient temperature [4].