Inspire : Inspire Winter 2016
61 WARM MIX ASPHALT (WMA) TECHNOLOGY is on its way to becoming the preferred method of paving overseas. The benefits over traditional hot mix asphalt are, along with new emphasis on positive environmental outcomes, driving the rapid uptake of WMA methods, which allow asphalt to be produced and placed at significantly lower temperatures. While Australia has tested and approved warm mix technologies, such methods haven’t been fully embraced yet at the local government level. ADVANCES ABROAD Between 2009-14, the US led the adoption of warm mix uptake, reporting growth of 557%, making up 32% of the tot al asphalt mixture market during the 2014 construction season. Not far behind are European countries like Norway, which offered contractors a bonus of £4 per tonne of WMA produced to accelerate the technology’s adoption. In fact , many countries are anticipating more stringent governance to conform to environmental initiatives. Research consultancy Deloitte says Australia – as one of the highest greenhouse gas producers on a per capita basis – has a key role to play in the recent Paris Agreement , which will see 197 nations working to curb increases in global average temperatures. “The Government’s Direct Action Climate Policy, which includes the Emissions Reduction Fund, is scheduled for review in 2017,” the report says. “This review is set to consider whether current policies are sufficient to enable Australia to meet its emissions reductions targets under the [Paris] Agreement.” Although Australia has not tracked the national application of WMA, the Australian Asphalt Pavement Association is developing a survey to measure these statistics, with the first results to be published in June 2016.
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