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
Aggregate Gradation Optimization – Literature Search by MoDOT (Missouri)
A brief analysis of current MoDOT specified limits on gradations was undertaken. Depending on which side (fine or coarse) the gradations were running in relation to the limits, various combinations of sand and coarse aggregates A, B or D were all over the Coarseness Factor chart, with behaviour ranging from...
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...
X-tec – M Knecht Concrete pavement construction equipment – batch plants, slipformers, diamond grinding
ASCP policy requires permission from presenters to publish their presentations on its web site. We have recently written to the presenters from this Forum for such permission. Once these have been received, we will publish the remaining presentations under this Resource.
Gomaco – T Nash Concrete pavement construction equipment – batch plants, slipformers, diamond grinding
ASCP policy requires permission from presenters to publish their presentations on its web site. We have recently written to the presenters from this Forum for such permission. Once these have been received, we will publish the remaining presentations under this Resource.
Plastic Shrinkage Cracking Spreadsheet to calculate evaporation rates of bleed water from concrete surfaces
This document is a simple Excel spreadsheet which allows the user to input Air Temperature, Concrete Temperature, Relative Humidity & Wind Velocity to determine the Bleed Water Evaporation Rate. The formulae, developed by P Uno, are based on the well known ACI Bleed Water Evaporation Nomograph.