ASCP On Demand Forums - Ian Thompson, Daniel Bosco, Todd Myers & Justin Moss - ASCP Forum 18 May 2020
This On-Demand Forum presented 18 May 2020 covers:
Brisbane airport new runway – Design of the concrete pavements, Ian Thompson Senior Principal -Pavements Jacobs. As the construction of the new runway at Brisbane airport nears completion, Ian Thompson will outline the pavement design process with an emphasis on the concrete taxiway pavements. Ian’s presentation will include functional requirements of the different pavements, traffic mix including assessment of future aircraft, concrete thickness design, and construction details.
Shrinkage control and measurement of cementitious products, Daniel Bosco Managing Director Bluey Technologies. Volumetric stability of cement products from the time of casting though to curing and service life is a complex and widely misunderstood field. There are many ways to reduce shrinkage, and various forms of additives to compensate against shrinkage of concretes grouts and mortars. Daniel Bosco will investigate some of the limitations to testing for shrinkage and also the relevance of various test methods. This discussion may not answer all of the questions about why we see cracking in concrete, but hopefully it will at least highlight the complexity of this field.
Achieving ride quality – Coopernook to Herons Creek project, Todd Myers Director TSM Civil. Todd Myers’ looks back on the Coopernook to Herons Creek project built in 2009-2010, and reviews some of the practical steps taken to achieve an excellent ride quality on the project. These include plant selection, mix design, concrete quality, pre-spreading of concrete and training of the team, just to name a few.
Concrete Pavement Value ASCP Pavement Note 001, Justin Moss, ASCP President. The Note presents a concise summary of the eight key benefits of concrete pavements when compared with asphalt pavements. It concludes that... "Concrete pavements are significantly lower in construction cost, maintenance cost and, consequently, whole of life cost. Additionally, they are smooth, skid resistant, more rapidly constructed, less labour-intensive, less equipment-intensive, more durable, and more available in-service. As such, concrete pavements surpass asphalt pavements in all aspects."