This forum addressed both concrete road pavements & concrete industrial pavements. Presentations made addressed concrete mix designs, design & construction aspects, as well as current information about diamond grinding of concrete road pavements in Australia. Good Concrete Mix Design: •Understand requirements of the concrete. •Identify if an existing mix may...
Diamond Grinding
This forum addressed both concrete road pavements & concrete industrial pavements. Presentations made addressed concrete mix designs, design & construction aspects, as well as current information about diamond grinding of concrete road pavements in Australia. Presentation by David Dash covers: equipment and components used for diamond grinding United States practices...
Effect of pavement roughness on fuel consumption
The presentation by Arvo Tinni provides worked examples of fuel efficiency savings with reduced roughness. The basis of the presentation is an ARRB Research Report ARR31, which is based on 7 prior studies. Concluding that a unit change in IRI has an average change in fuel consumption of 1%. The...
Concrete roads save fuel – 2008 Canadian Study
Arvo Tinni's presentation references a 2008 Canadian study by the National Research Council, Centre for Surface Transportation Technology. A comparative study of three pavement types - concrete, asphalt and composite. Reported truck fuel savings of 1.8% and 3% at 100km/hr and 60km/hr respectively for concrete when compared with the next...
Concrete Pavement Ride Quality – Connecting Theory and Practice
Causes of roughness IRI Roughness testing methods Bump car Walking profilometer
Ride Quality – Current Field Practices Pavement Ride Quality
1. The importance to our projects of achieving smoothness 2. The equipment we use (what and why) 3. Benefits / limitations 4. Interpretation of early results 5. Where to from here?
Factors affecting smoothness – Pavement Ride Quality
Arvo Tinni presentation on factors affecting smoothness, including: Pavement design Concrete mix design Construction operations Reference is made to FHWA Research Report - Achieving a high level of smoothness in concrete pavements without sacrificing long-term performance.
What is Roughness and How to Measure Roughness – Pavement Ride Quality
Definition of Roughness (The current understanding?) > Type of Measuring Devices and the Relative Accuracy and Precision > Calibration and Validation of Measuring Devices > Factors Affecting Roughness Measurement > Survey Levels (i.e. Network vs Construction Acceptance) > NCHRP Recommendations for Roughness Testing of New Construction
Concrete Pavement Research at RTA Pavement Ride Quality
The presentation on Cold Weather Paving contains research information which is not yet approved for release. We hope to be able to load that presentation in the near future
Volumetric Concrete Mixers and Rapid Set Concrete
Ian Hampton of VCA presents on Volumetric Concrete Mixers and Rapid Set Concrete. Two new innovative products his company is bringing to the Australian market.
Concrete pavement construction equipment – batch plants
Presentation on concrete batch plants by J Cathro of Prolinx Asia.
Diamond Grinding of Concrete Pavements
This presentation was part of a Forum presentation entitled “Concrete pavement construction equipment – batch plants, slipformers, diamond grinding”. It summarises that … Grinding improves ride quality improves microtexture improves macrotexture (albeit longitudinal) reduces tyre noise Grooving has no impact on ride quality has no impact on microtexture (hence no...