Controlling reflection cracking "black topping" old concrete pavements

Title: Controlling reflection cracking "black topping" old concrete pavements
Author(s): K. Hadipour, A.C. Balasundaram, M.L.J. Maher
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: 297 - 306
Total Pages: 10
Nb references: 7
Language: English

This paper presents details of a rehabilitation strategy incorporating an asphaltic concrete overlay "black topping", that was successfully used to rehabilitate an old concrete pavement in the Dominican Republic. A number of mitigative measures were incorporated into the design to address reflective cracking problem.

George Washington Avenue is a heavily travelled road in Santo Domingo, the Capital of the Dominican Republic. After more than 40 years of service, the divided, four lane concrete pavement was in poor condition with extensive cracks, patches and a severely polished surface. The pavement needed immediate repairs to improve traction and ride quality.

A pre-design investigation, comprising detailed pavement condition surveys, route borings and concrete cores was undertaken. Based on the investigation, local capabilities, resources and time to complete the repairs, a modified mill and overlay rehabilitation strategy was adopted. This included milling the existing pavement surface, replacement of severely cracked concrete panels, routing and sealing of cracks and joints, the placement of an approved crack relief membrane and overlaying with 100 mm of asphalt.

The rehabilitation was successfully completed, resulting in a pavement with excellent ride quality. After two years of service, the rehabilitated pavement is performing well with no signs of reflection cracks.

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

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