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GREEN TECHNOLOGIES FOR RIGID AND COMPOSITE PAVEMENT CONSTRUCTION
| 题名： | GREEN TECHNOLOGIES FOR RIGID AND COMPOSITE PAVEMENT CONSTRUCTION |
| 正文语种： | eng |
| 作者： | SATANDER KUMAR |
| 摘要： | The road sector produces the highest level of greenhouse gas, directly, through fossil energy used in mining, transportation, paving works and indirectly through the emissions coming from vehicles with more stop and starts. Increase in the number of road vehicles generates a substantial increase in pollution and noise disturbances particularly in rigid pavements. Efforts shall be made to have cheaper and better production, construction and of course maintenance, all the more as raw materials are becoming scarce and the environmental laws are getting stricter regarding air pollution and noise disturbances. As per World Highways November 23, 2015, the overall population is increasing (by 2050, the UN predict that the world population may reach 9.7 billion) and the number of natural resources like crude oil, aggregates or iron core is finite. Pollution is demarcated as contamination of air, water and soil by harmful chemicals and toxins due to so many unexpected issues. Main pollutants of air are carbon dioxide (CO_2) generated from Industries and traffic movement mainly, vapours of carbonic acid (H_2CO_3), nitric acid (UNO_3), and sulphuric acid (H_2SO_4) during acid rains. Air pollution has harmful effects on natural vegetation and human health such as respiratory illnesses besides corrosion in steel, reinforced concrete and prestressed concrete also. (IS:5182) This indicates the need of Sustainable Green Highways. The paper, thus discuses different technologies to brand and maintain rigid and composite pavement eco-friendly with minimum air, water, soil and sound pollution, with least production of CO_2, clear visibility and optimum riding quality on Highways for ease of traffic with minimum total transportation cost. |
| 出版年： | 2022 |
| 期刊名称： | Indian Highways |
| 卷： | 50 |
| 期： | 8 |
| 页码： | 44-50 |
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