Bridge Girders for Bridge Girders for Sustainability Sustainability With the use of With the use of High Performance High Performance Concrete Concrete Doug Jenkins - Interactive Design Services Joanne Portella– DMC Advisory, Melbourne. Daksh Baweja – DMC Advisory, Melbourne, The University of Technology, Sydney.
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Optimising Precast Bridge Girders for Sustainability With the use of High Performance Concrete
Optimising Precast Bridge Girders for Sustainability With the use of High Performance Concrete. Doug Jenkins - Interactive Design Services Joanne Portella– DMC Advisory, Melbourne. Daksh Baweja – DMC Advisory, Melbourne, The University of Technology, Sydney. Introduction. - PowerPoint PPT Presentation
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Optimising Precast Bridge Optimising Precast Bridge Girders for SustainabilityGirders for Sustainability
With the use of With the use of High Performance ConcreteHigh Performance Concrete
Doug Jenkins - Interactive Design ServicesJoanne Portella– DMC Advisory, Melbourne.Daksh Baweja – DMC Advisory, Melbourne, The University of Technology, Sydney.
Introduction Introduction Focus of emissions reduction strategies in
Australia has been on cement reduction.– Can significant emissions reductions be made with
the use of high strength concrete?Outline of study:
– Effect of high strength concrete and high supplementary cementitious material (SCM) content on total CO2 emissions.
– Typical 2 Span freeway overbridge
– 5 grades of concrete
– 3 deck types
Alternative Concrete MixesAlternative Concrete Mixes
significantly higher levels of prestress, and reduction in concrete volumes and emissions.
Structural continuity over the central support allowed an additional small saving in emissions.
The overall reduction of CO2 emissions was not a simple function of the reduction of Portland cement in the concrete, but was also based on how the material properties of the concretes used influenced the structural efficiency of the design.
ConclusionsConclusions Engineering is the art of directing the great
sources of power in nature for the use and convenience of man.