alexa A STUDY ON PAVEMENT PERFORMANCE AND OVERLAY DESIGN USI
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Research Article

A STUDY ON PAVEMENT PERFORMANCE AND OVERLAY DESIGN USING HDM-4

Geethu Saji1 Sreelatha T2 B.G Sreedevi3
  1. PG Student, Govt. Rajiv Gandhi Institute of Technology, Kottayam, India
  2. Associate Professor, Govt. Rajiv Gandhi Institute of Technology, Kottayam, India
  3. Scientist G, National Transportation Planning and Research Centre, Trivandrum, India
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Abstract

Maintenance and repair of the highway pavements accounts to major expenses in the state budget. Highway Development and Management tool, HDM-4 software, developed by the World Bank for global applications is utilized for identifying an optimum maintenance strategy for highway pavements. The study area selected was Seaport-Airport Road (SPAP Road), a two-lane, 11.47km long road running between HMT Kalamasseri and Cohin Refineries Ltd. Economic analyses of different overlay options were evaluated using HDM-4. The concept of Ultra-Thin Whitetopping has not yet introduced in Kerala. Ultra-Thin Whitetopping may be defined as a concrete overlay 50mm to 100mm thick, with closely spaced joints and bonded to an existing bituminous pavement. It consist of a thin layer of high strength, fibre- reinforced concrete placed over a clean , milled surface of distressed bituminous concrete pavement, to achieve full or partial bonding. From the deterioration summary it is identified that even after 15 years, the riding quality of Ultra-Thin Whitetopping is the excellent and the most desirable one without any intervention. Ultra-Thin Whitetopping has the minimum rate of roughness progression which in turn may lead to very low Road User Cost values thus providing 46% increase in the Net Economic Benefits than that of Ordinary Bitumen overlay. It also improves the functional efficiency of the pavement.

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