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ROADS AND BRIDGES (RESEARCH-DEVELOPMENT) Dr. László Gáspár research professor ERTRAC National Platforms Workshop 5 September 2008, Budapest ERTRAC National Platforms Workshop
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Division for Roads and Bridges Units: Laboratory for Asphalt, Concrete and Geotechnique Attestation Bureau Controlling Bureau Round Robin Test Organizing Bureau ERTRAC National Platforms Workshop
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Some research (development) works a.) Management I. PMS II. BMS (PONTIS adaptation) III. Asset management b.) Cement concrete pavements I. Jointed pavement II. CRCP III. Whitetopping c.) Industrial by-products Blast furnace slag for embankment ERTRAC National Platforms Workshop
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PMS -Network level PMS in 1990’s (Markov matrix, funds distribution, funds need, national economy loss when changing) -HDM-4 adaptation (also for network level, NUP-National Road Rehabilitation Programme for 2009-2020) ERTRAC National Platforms Workshop
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BMS American PONTIS-adaptation (Bridge survey methodology, bridge elements, intervention techniques, unit prices, deterioration models). Further development: combination of the deterioration of neighbouring elements; higher level optimization) Use in NUP ERTRAC National Platforms Workshop
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Asset Management I. Preparation of Hungarian Road Asset Management Users’ need +owner’s requirement (questionnaire survey) Administrative measures (three-level quality control system, decentralisation of road management, trunk road network) ERTRAC National Platforms Workshop
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Business arrangement (PPP, also in road maintenance) Decision supporting technical tools ( yearly condition survey since 1979, assets valuation since 1981, road or infrastructure management system) Asset Management II. ERTRAC National Platforms Workshop
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Jointed cement concrete pavements 1976-1999No concrete pavements in Hungary 1999-2002 Laboratory tests, experimental sections with exposed aggregate surface 2003-Concrete pavement on road ring M0 Continuously reinforced concrete pavements Experimental sections between 1999-2002 (punch-out problems) ERTRAC National Platforms Workshop
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Whitetopping (thin cement concrete layer) Laboratory investigations, first test section in 2007 (120 mm, intensive heavy traffic) - ERTRAC National Platforms Workshop
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Industrial by-products in road construction Fly ash and blast furnace slag (bottom ash) 700 000 m 3 slag in the embankment of motorway M6 (2005) Environmental monitoring (CrVI content) Dense and durable (80-100 MPa) ERTRAC National Platforms Workshop
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THANK YOU FOR YOUR KIND ATTENTION ! ERTRAC National Platforms Workshop
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