Rehabilitation of transversally-cracked asphalt pavements - Alberta Experience

Title: Rehabilitation of transversally-cracked asphalt pavements - Alberta Experience
Author(s): V. Ghai
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: 485 - 494
Total Pages: 10
Nb references: 2
Language: English

The commonly used rehabilitation strategy on roads in the province of Alberta is an asphalt overlay. However, this strategy on a transversally cracked pavement does not solve the reflective cracking problem. Reflective cracking similar to that which was on the old pavement reappears and leads to premature rehabilitation.

In 1994, 36 km of Highway 2 was rehabilitated. Part of the overlay rehabilitation strategy incorporated a 2.5 km experimental section into the project with various rehabilitation strategies. These included pre-treatment of cracks by cold milling and filling and routing and sealing prior to overlay. Also included was a section with a thicker overlay and a section with cold milling the full pavement surface prior to overlay. In order to monitor the long term performance of the test section, the cracks were mapped prior to construction.

This paper documents strategies used, pre-design investigation, construction report, and performance after five winters of service. So far, three detailed inspections have been carried out to map the reflective cracks. The intent is to keep monitoring to determine if any strategies are cost effective.

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

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