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原文传递 CARBON FOOTPRINT OF BITUMINOUS ROAD CONSTRUCTION:A CASE STUDY

题名：	CARBON FOOTPRINT OF BITUMINOUS ROAD CONSTRUCTION:A CASE STUDY
正文语种：	eng
作者：	SUNIL KUMAR CHAUDHARY
作者单位：	Road Construction Department Vaishali Road Division Hazipur Bihar
摘要：	Globalization and liberalization policies of the government of India have increased the number of roads and vehicles playing on them. These vehicles mainly consume non-renewable fossil fuels, and are a major contributor of greenhouse gases, particularly CO_2 emission. The road sector is coming under pressure to review current practice and the potential to reduce carbon emissions. The intensification of Carbon emissions of road construction sector has strived transportation agencies involved in the construction and maintenance of transportation infrastructure, to make their practices and policies greener and more sustainable. Accordingly, environmental consciousness is on rise and has motivated transportation agencies involved in the construction to investigate strategies that reduce the life cycle Greenhouse Gas (GHG) emissions associated with the construction and rehabilitation of highway infrastructure. To reduce GHG emission, different approaches are adopted for road construction and maintenance such as Warm Mix and Cold Mix Technologies. Warm mix asphalt is produced at temperatures 20°C to 40°C lower than Hot Mix Asphalt (HMA). Cold Mix Asphalt is produced and paved at ambient temperature using bitumen emulsion. The immediate benefit of producing and placing asphalt mixes at a lower temperature is the reduction in energy consumption, greenhouse gas emissions, fumes, and odours generated at the plant and the paving site. The life cycle approach has been accepted as a robust method of measuring carbon footprint. Tools and data-sets have been developed to facilitate the measurement. Among them is the Calculator for Harmonised Assessment and Normalisation of Greenhouse-gas Emissions for Roads (CHANGER) developed by International Road Federation (IRF). This paper reviews concept of carbon foot printing, outlines the common methodology of road carbon foot printing, application of results in sustainable construction assessment schemes and resources available to undertake such analysis. Case study of using CHANGER has been presented.
出版年：	2023
期刊名称：	Indian Highways
卷：	51
期：	6
页码：	37-42