DBPapers
DOI: 10.5593/SGEM2014/B42/S18.031

TECHNICAL SOLUTIONS FOR THE MODERNIZATION AND REHABILITATION OF THE LOCAL ROADS IN THE SOUTH-WESTERN ROMANIA

F. Belc, P. Marc, G. Lucaci
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-16-2 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 2, 235-242 pp

ABSTRACT
In spite of the significant efforts made by the local administrations for the
modernization of the roads in their inventory, there are still over 75% of the local roads with road pavements in well-graded aggregate or earth. Also, a significant proportion of the roads with modern pavement present an expired life span and the thickness of their monolith layers is extremely reduced. Most of these roads are generally open to local and low traffic, but occasionally they can be randomly used by trucks with the axle load of about 115 kN. In these circumstances the technical solutions adopted by the designers must take into account the variety of the local conditions, the existing road dowry as well as the real traffic to be carried on by the considered road sections. On the other hand, the composition of the adopted resistance structures generally aim at preserving the existing road layers concomitantly with the realization of new natural aggregate layers and new bituminous pavements. The purpose is to adopt the better adapted resistance structures with minimum construction costs. The paper presents the main technical solutions proposed by the designers to modernize well-graded aggregate roads or rehabilitate roads with expired bituminous pavements, by using to the maximum the existing dowry and by realizing road layers with high bearing capacity.

Keywords: local roads, local conditions, cold in-situ recycling, minimum construction
costs

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