Upgradation of PMGSY Road Using Full Depth Reclamation Process in the State of Nagaland
Dr. Ambika Behl, Principal Scientist, CSIR-CRRI and Chakarpani Shekhawat, Product Manager, Wirtgen India
Rapid growth in industrial development and economy in last two decades has demanded upgradation of the existing road network in the country. Though there is a huge road network in the country, it is still inadequate to meet accessibility and mobility requirements. The conventional method of providing bituminous surfacing on flexible pavements requires significant amounts of materials and energy, so to reduce consumption of fuel and aggregates, pavement recycling technology can be adopted.
Pavement recycling can be performed in three ways: by cold mix recycling, hot mix recycling, and full depth reclamation process. If pavement failure is restricted to the upper layer only and the pavement is in a suitable bearing condition, hot recycling can be a good solution. If the pavement has structural flaws and is severely damaged, such as fatigue along the wheel path, rutting, and reflected cracking, full-depth reclamation (FDR) method is suggested. If the situation falls somewhere in between, then cold recycling can be the answer.
Rapid growth in industrial development and economy in last two decades has demanded upgradation of the existing road network in the country. Though there is a huge road network in the country, it is still inadequate to meet accessibility and mobility requirements. The conventional method of providing bituminous surfacing on flexible pavements requires significant amounts of materials and energy, so to reduce consumption of fuel and aggregates, pavement recycling technology can be adopted.
Pavement recycling can be performed in three ways: by cold mix recycling, hot mix recycling, and full depth reclamation process. If pavement failure is restricted to the upper layer only and the pavement is in a suitable bearing condition, hot recycling can be a good solution. If the pavement has structural flaws and is severely damaged, such as fatigue along the wheel path, rutting, and reflected cracking, full-depth reclamation (FDR) method is suggested. If the situation falls somewhere in between, then cold recycling can be the answer.
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NBM&CW October 2022
