Based on the development and research situation of warm mix asphalt technology,it displays the inno-vative characteristics of production and construction of warm mix asphalt mixture technology,and explores the mechanical foaming process and temperature definition to achieve warm mix technology.It gives a general study of parameters in the production of warm mix asphalt mixture technology,determination of expansion rate and half-life,analysis of foaming effect evaluation indicators,exploration of indoor testing equipment and ex-isting equipment for research and development.And it reveals the current technological bottlenecks and exist-ing problems in research and application.It is also pointed out that under the premise of equivalent perfor-mance to traditional hot mix asphalt,warm mix asphalt can effectively reduce construction temperature by 30℃to 50℃,significantly reduce exhaust gas and dust emissions,and belong to a new green,low-carbon and environmental protection technology.More suggestions are made to focus on tackling the key technical chal-lenges from design,production to construction at the current stage,establish a sound standard system to stan-dardize its production and construction,and facilitate its promotion and application.
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