Open AccessUnit processes identification of maintenance on rigid and flexible pavement of local road
Author(s) -
Fajar Sri Handayani,
Florentina Pungky Pramesti,
Ary Setyawan
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/615/1/012115
Subject(s) - greenhouse gas , asphalt , unit (ring theory) , life cycle assessment , environmental science , aggregate (composite) , pavement engineering , civil engineering , engineering , process (computing) , transport engineering , computer science , production (economics) , geology , oceanography , materials science , mathematics education , cartography , mathematics , economics , composite material , macroeconomics , geography , operating system
Maintenance and rehabilitation as parts of pavement’s life cycle become more important since it’s an effort to restore the road condition as planned. This process will produce the emission of greenhouse gases that give an impact to the environment. The Live Cycle Assessment (LCA) was used to estimate the GHG’s emissions. With LCA we could identify the unit process that will produce the GHG’s emissions during maintenance and rehabilitation of road pavement. This research aimed to identify the unit processes of the maintenance and rehabilitation of rigid and flexible pavement and to analyse the amount of GHG emitted during this process. Four local roads in Indonesia were investigated as case studies. The result indicated the amount of energy of the unit processes as well as the GHG amount. This will lead to the identification of the hotspot of flexible and rigid pavement maintenance process. In rigid pavement maintenance activities, the hotspots included the asphalt transport process to asphalt mixing plant, cement transportation to the batching plant, and cement processing. Meanwhile, in flexible pavement maintenance activities, the hotspots were the asphalt transportation to asphalt mixing plant, transportation aggregate, and transportation to site.