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Pro037

Pavement damage by cracking under severe frost conditions



Title: Pavement damage by cracking under severe frost conditions
Author(s): M. Boutonnet, Y. Savard, P. Hornych
Paper category : conference
Book title: Fifth International RILEM Conference on Reflective Cracking in Pavements
Editor(s): C. Petit, I.L. Al-Qadi and A. Millien
Print-ISBN: 2-912143-47-0
e-ISBN: 2912143764
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 341 - 348
Total Pages: 8
Nb references: 9
Language: English


Abstract: A France-Québec cooperation project between the Laboratoire Central des Ponts et Chaussées (LCPC) and the Ministère des Transports du Québec (MTQ) led to the design, construction and rigorous monitoring of behaviour over time of four experimental road sections established in Québec. The project's main objective is the validation and improvement of French and Québec pavement design methods under severe frost conditions, and more specifically the calibration of damage models to the deterioration observed on the experimental sections. The two types of pavement most used in France (road foundations treated with hydraulic binders and bituminous pavements) were selected. Two test beds of each type were constructed, one of them thermally insulated with panels of extruded polystyrene. After four years of monitoring, no cracks have appeared in the bituminous pavements, while the cement-treated base pavements exhibit fatigue and thermal shrinkage cracks. These observations confirm the fatigue damage forecasts of the dimensioning methods and the effectiveness of the cement-treated base precracking technique to control the reflection and opening of thermal shrinkage cracks in the surface bituminous mix.


Online publication: 2004-04-15
Publication type : full_text
Public price (Euros): 0.00