ROADS AND BRIDGES (RESEARCH-DEVELOPMENT)

Dr. László Gáspár research professor

ERTRAC National Platforms Workshop

5 September 2008, Budapest

ERTRAC National Platforms Workshop

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

Some research (development) worksa.) Management

I. PMS

II. BMS (PONTIS adaptation)

III. Asset management

b.) Cement concrete pavements

I. Jointed pavement

II. CRCP

III. Whitetopping

c.) Industrial by-productsBlast furnace slag for embankment

ERTRAC National Platforms Workshop

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

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

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

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

Jointed cement concrete pavements

1976-1999 No 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

Whitetopping (thin cement concrete layer)Laboratory investigations, first test section in 2007

(120 mm, intensive heavy traffic)

-

ERTRAC National Platforms Workshop

Industrial by-products in road construction

Fly ash and blast furnace slag (bottom ash)

700 000 m3 slag in the embankment of motorway M6 (2005)

Environmental monitoring (CrVI content)

Dense and durable (80-100 MPa)

ERTRAC National Platforms Workshop

THANK YOU FOR YOUR KIND ATTENTION !

ERTRAC National Platforms Workshop