Steel reinforcement influence on the dynamic behaviour of bitumous pavement

Title: Steel reinforcement influence on the dynamic behaviour of bitumous pavement
Author(s): M. Coni, P.M. Bianco
Paper category : conference
Book title: Fourth International RILEM Conference on Reflective Cracking in Pavements - Research in Practice
Editor(s): A. O. Abd El Halim, D. A. Taylor
and El H. H. Mohamed
Print-ISBN: 2-912143-14-4
e-ISBN: 2351580265
Publisher: RILEM Publications SARL
Publication year: 2000
Pages: 3 - 12
Total Pages: 10
Nb references: 8
Language: English

Abstract: 
The theoretical dynamic response of a bituminous pavement was investigated under dynamic loads with harmonic variation. The pavement was analysed by using Finite Element Model (FEM)assuming for the materials an elastoplastic behaviour.
With this study was found that the strain rate of the pavement depends on both load frequencies and damping values of bituminous conglomerate. The results also show that high stresses are induced when the load frequency is close to the resonance frequencies.
However the higher the internal damping of the bituminous conglomerate the lower resonance peak is. In some case, the same effect can be obtained by using high stiff reinforcement, keeping constant damping value.
Also cracks propagation in presence of stiff reinforcement were investigated. The results show that the crack on reinforced paving is less width than the one developed on the same pavement designed without reinforce under the same load.
The analysis was developed particularly with reference to the metallic reinforcement Road Mesh, manufactured and commercialised by Officine Maccaferri Spa.

Online publication: 2009-12-23
Publication type : full_text
Public price (Euros): 0.00