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The Development of Asphalt Mix Creep Parameters and Finite Element Modeling of Asphalt Rutting
This paper describes a method of predicting the behaviour of various asphalt mixes in terms of their rutting resistance and linking these behaviours to an accelerated performance testing tool and…
Innovative Infrared Crack Repair Method
Conventionally cracks in asphalt pavements are repaired by milling the pavement around the crack and placing and compacting new Hot Mix Asphalt (HMA) material. An innovative crack repair method has…
Sustainable Pavements - Making the Case for Longer Design Lives for Flexible Pavements
Over one quarter of the world's greenhouse gas emissions are caused by transportation and especially road transportation. It is critical for the road construction industry to become part of the…
Accelerated Performance Testing of Canadian Asphalt Mixes Using Three Different Wheel Rut Testers
Asphalt pavement rutting is one of the most common and destructive pavement distresses observed on Canadian roads, particularly in the urban environment at intersections. A reliable, accelerated…
Evaluation of stiffness to predict rutting resistance of hot-mix asphalt: a Canadian case study
This paper investigates the relationship between the stiffness and rutting resistance of hot-mix asphalt. Ten different types of hot-mix asphalt were examined. The Superpave mix design method was…
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Rational Approach for Selecting the Optimum Asphalt Pavement Preventive and Rehabilitation Treatments - Two Practical Examples from Ontario
TLDR
This paper describes four simple steps that municipalities should follow to put them in a better position to make informed decisions with respect to expenitures on pavement rehabilitation, and describes the practical application of the selection process on a pavement preventive maintenance project in the Town of Whitby, and pavement rehabilitation design in one of the municipalities in Ontario.
Effect of Utility Cuts on Serviceability of Pavement Assets - A Case Study from the City of Calgary
The City of Calgary has a road network of nearly 16,000 lane-kilometres with an asset value of about $10.0B. With such an extensive roadway network, it can be very expensive and disruptive to carry…
Challenges in Designing Pavements for Bus Rapid Transit Projects - Experience in York Region, Ontario
There are a number of challenges when adopting existing heavily travelled arterial roads to accommodate Bus Rapid Transit (BRT) lanes. These include the widening/strengthening old deteriorated…
Construction of Durable Longitudinal Joints - The Courage to Use Innovations Pays Off
Poorly constructed longitudinal joints will likely lead to joint opening, cracking and ravelling. There are a number of factors that should be considered for cold joint construction that may impact…
Perpetual Asphalt Pavements
Traditionally, flexible road pavements are designed to last 20 years. With the rapidly increasing traffic volumes on urban arterial roadways, the major disruption to normal traffic operations, and…
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