Rigid Pavement Rehabilitation Techniques in Canada

Paper by KAZMIEROWSKI STURM from ISCR 6th 1990

The rehabilitation of portland cement concrete (PCC) pavements on high volume freeways have always posed a challenge. In the summer of 1989, the Ministry of Transportation of the Province of Ontario (MTO), Canada, accepted the unique challenge to rehabilitate one such freeway using various PCC pavement repair techniques in one direction and an unbonded PCC overlay in the opossing direction. This paper will discuss the performance of the pavement, in terms of load transfer and pavement edge deflections based on FWD testing, roughness using the profilograph, and PURD, and skid resistance using the ASTM brake force trailer. Observations of noise levels, traffic volumes, and surface texture are also presented.

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