7. SUSTAINABILITY Working Group Leader: Rob Vos Group: David Angell, Trevor Distin, Russell Lowe Tour Sustainability recycling, warm mix asphalt, efforts to reduce carbon footprint, carbon – calculators and the impacts for road asset management Cold in-plant manufactured Bitumen Stabilised Material using Recycled Asphalt eThekwini / Durban – Feedback from Krishna Naidoo,, Dave Collings,Tony Saied Solomons, Kim Jenkins Observations Sustainability was an underlying trial for each of the four centres visited and was included in the CAPSA 2011 conference theme Roads of the Future and in the conference focus areas: Reducing energy consumption in the construction of bituminous layers Reducing the impact of road building activities on the environment Designing for extended performance of asphalt Flexible pavement systems for extended life Meeting the of society Observations are drawn from the papers presented both from a South African perspective and from the international participants. Green Circle Road from rehabilitation to failed pavement and back the road materials bank – – During the visit to the eThekwini Municipality / Durban there was clear focus on the need for sustainable use of materials, this included the policy of the 100% reuse of all municipal materials and This included the concept of the Circle Roads” where the municipality is the “waste”. “Green owner of the network, the road, and the residual pavement materials. When rehabilitation is required, it considers the deconstruction of the asset and its engineered and managed reuse, reducing the introduction of virgin materials to a minimum and tracking the most beneficial path for the reuse of the materials from design through to project completion.
7. SUSTAINABILITY Working Group Leader: Rob Vos Group: David Angell, Trevor Distin, Russell Lowe Tour Sustainability – recycling, warm mix asphalt, efforts to reduce carbon footprint, carbon calculators and the impacts for road asset management Cold in-plant manufactured Bitumen Stabilised Material using Recycled Asphalt – eThekwini / Durban Feedback from Krishna Naidoo,, Dave Collings,Tony Saied Solomons, Kim Jenkins Observations Sustainability was an underlying for each of the four centres visited and was included in the CAPSA 2011 conference theme Roads of the Future and in the conference focus areas: Reducing energy consumption in the construction of bituminous layers Reducing the impact of road building activities on the environment Designing for extended performance of asphalt Flexible pavement systems for extended life Meeting the of society Observations are drawn from the papers presented both from a South African perspective and from the international participants. Green Circle Road – from rehabilitation to failed pavement and back – the road materials bank During the visit to the eThekwini Municipality / Durban there was clear focus on the need for sustainable use of materials, this included the policy of the 100% reuse of all municipal materials and “waste”. This included the concept of the “Green Circle Roads” where the municipality is the owner of the network, the road, and the residual pavement materials. When rehabilitation is required, it considers the deconstruction of the asset and its engineered and managed reuse, reducing the introduction of virgin materials to a minimum and tracking the most beneficial path for the reuse of the materials from design through to project completion. trial
2011_AAPA_Study_Tour_Report_v4-2.docx