Introduction to Pavement Construction Inspection
le 5 juillet 2021
Code : 0702-WEB21
This webinar examines the basic design principals of flexible (asphalt surfaced) and rigid (concrete surfaced) pavements to give participants a good understanding of "what matters" to ensure the maximum pavement life possible. Constructing a pavement is not as precise as factory manufacturing where the input materials and processes are strictly controlled to result in the desired final product.
While processes and procedures are in place for both quality control and quality assurance, changes and variations in the materials, weather conditions, contractor operations, etc. can have a significant impact on the life of the pavement.
Case studies of "cause" and "effect" are presented in a sequence of construction commencing at the subgrade and working towards the pavement surface to illustrate the impact of poor quality construction and inspection on pavement performance.
Frequently, construction inspectors are not fully aware of the consequences of poor construction practices and are reluctant to "get into an argument" with construction personnel. Pavements typically do not fail catastrophically and construction defects may takes years to manifest themselves in distress and deterioration.
The cost to "repair" the defects may in fact be much higher than the original cost of construction and the repairs themselves may contribute to further pavement distress. By understanding and identifying poor practices and ways of improving them, we can contribute to a sustainable infrastructure system.Horaire : 12:00 PM - 1:00 PM EDT
David Hein, P.Eng. is a consulting Civil Engineer with over 35 years of experience in the design, evaluation and management of transportation infrastructure. He recently retired from Applied Research Associates, Inc. of Toronto, Ontario. He is the past president of the American Society of Civil Engineers Transportation and Development Institute (ASCE T&DI), chair of the Workforce Development Council and chair of 5 engineering standards committees.
He is a long term member of the Transportation Association of Canada (TAC), Past-Chair of the pavements committee and member of the Workforce Development Council and past members of the Transportation Research Board pavement management, pavement maintenance and pavement preservation committees. He has represented Canada on the World Road Association (WRA) pavements and asset management committees since 2002 and is currently the Vice-Chair of the Canadian National Committee to the WRA. He also recently stepped down after 10 years as Executive Director of the Falling Weight Deflectometer User Group.
He has been involved in numerous national and international research, evaluation and asset management projects for Federal, State, Provincial and Municipal agencies and many of the public/private/ partnership highway construction projects across Canada and the United States.
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