000004925 001__ 4925
000004925 005__ 20141119144605.0
000004925 04107 $$aeng
000004925 046__ $$k2002-06-02
000004925 100__ $$adeBruin, Phillipus W.
000004925 24500 $$aMODELLING THE CHANGES IN PAVEMENT LAYERS DURING REHABILITATION AND THE EFFECT OF THESE CHANGES ON THE STRUCTURAL CAPACITY

000004925 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004925 260__ $$bColumbia University in the City of New York
000004925 506__ $$arestricted
000004925 520__ $$2eng$$aPavement rehabilitation / reconstruction usually involves the re-use and retention of existing pavement layers. Often, these layers are retained as sub-layers with the addition of strength in terms of new layers on the top of the pavement. Hence, in order to accurately analyse the behaviour of the rehabilitation effect, both the old as well as the new pavement layers need to be taken into account. A structural capacity analysis of the rehabilitated pavement, using mechanistic analysis procedures, requires the effective elastic moduli of the newly constructed pavement layers as well as that of the existing underlying pavement layers to be accurately modelled / simulated. The aim of this paper is to highlight the changes in stiffness values that take place during the rehabilitation of a pavement and the effect this has on predicted structural capacity. An experimental section of road was evaluated before and after rehabilitation and the stiffness and associated stresses were determined in-situ for the different uniform sections along the road (de Bruin, 2000). The material properties and the changes of the material properties for the different pavement layers were modelled using deflection bowl measurements of high frequency (every 4-6 meters along the length of the road). These changes were compared and the influence of the rehabilitation actions on the structural capacity (life) for the before (pre) and after (post) rehabilitation phases was assessed.

000004925 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004925 653__ $$aReconstruction, rehabilitation, modelling, stiffness, structural capacity, effective elastic moduli

000004925 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004925 720__ $$adeBruin, Phillipus W.$$iVisser, Alex T.$$iJordaan, Gerrit J.
000004925 8560_ $$ffischerc@itam.cas.cz
000004925 8564_ $$s251237$$uhttps://invenio.itam.cas.cz/record/4925/files/548.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004925 962__ $$r4594
000004925 980__ $$aPAPER