REAAA Technical Sub-Committee TC â€“ 2 Pavements
Status Report April 2014
The goal of the pavements technical committee is for member countries to study the improvement of pavement maintenance technologies, including management systems, in order to maintain the road network in a good condition for as long as possible. The committee shares information on pavement maintenance by summarising and examining the best practices in member countries in terms of management systems, monitoring methods, materials and methods for pavement maintenance and repair work. Ecological issues associated with pavement maintenance/repair works, including recycling technologies and the use of environmentally-friendly materials, are also relevant.
The committee is made up of members from Australia, Brunei, Indonesia, Japan, Korea, Malayisa, New Zealand, Philippines, Singapore, Taiwan and Thailand.
Compendium on Pavement Durability
After the formation of REAAA Technical sub-committee TC-2 (Pavements) in late 2010, the committee members approved the preparation of a Compendium on Pavement Durability in line with its Terms of Reference (TOR) during its first cycle of operation. This study involved the assessment of effective methods and measures in terms of their life cycle costs (LCC) and environmental impact.
The first stage of the study was the preparation of a questionnaire which was sent to all member countries seeking information regarding the types of roads in their region, the most common types of pavements/layers, the typical types of pavement distress encountered, countermeasures to improve them, and an assessment of the effectiveness of the measures taken. A total of 15 case studies from seven countries were submitted to the Working Group.
The main types of pavement distresses identified in terms of the need to maintain a durable pavement were: fatigue cracking, rutting, roughness/faulting and potholes. The main counter-measures included: the use of new or specific materials; improvements in construction methods; and improvement in quality assurance/control. As expected, these measures were reported as being successful in most cases.
The second stage of the study involved the collation of reports and technical papers describing membersâ€™ experience in the management of durability. A total of 11 reports were submitted by five countries.
Most of the measures used to manage durability were symptomatic and undertaken in the maintenance stage in response to emerging needs. However, they can also be taken into account in the planning and design stages of pavement management. In other words, a well-planned, middle or long term strategy will be the best way to improve pavement durability.
The compendium is currently undergoing final review and editing and should be completed by the middle of 2014.
The Technical sub-committee TC 2 Pavements is also compiling the results from a survey on pavement recycling completed by its member countries. This topic is one of three themes currently being studied by the PIARC committee TC4.2 Road Pavements. If the information collected through the survey is informative, REAAA TC 2 will seek to collaborate with PIARC TC4.2 at the XXV World Roads Congress, to be held in Seoul, Korea, on 2-6 November 2015.
In terms of the main theme of the pavements committee the working group is hoping to compile a report/compendium on â€œpavement maintenance practiceâ€ by collecting typical maintenance practice in the member countries. This will commence in May 2014.
If you would like any further information on the REAAA Technical sub-committees please contact the NZ Chapterâ€™s secretary email@example.com