Quantifying the environmental impacts of reduced temperature chemical warm-mix asphalt with life cycle assessment
Source abstract
Abstract
This manuscript presents findings from a research study focussed on using Life Cycle Assessment (LCA) to quantify the environmental impacts of chemical Warm Mix Asphalt (WMA) during mix production, and over a pavement’s service life. One Hot Mix Asphalt (HMA), and two WMAs were considered. Based on data collected from multiple asphalt plants, an average reduction of 19.2% in fuel consumption was attributed to reduced mix production temperatures. This led to reduced global warming and smog formation potentials during WMA production. However, the WMA mixes had increased ozone depletion and eutrophication potentials. Published data on the performance of in-service pavements constructed with chemical WMA technology were used to select an achievable improvement in pavement service life over similar HMA sections, and this was incorporated into the LCA framework. WMA pavements were found to have lower yearly environmental impacts than the HMA pavement in four out of five impact categories considered.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Smart Materials for Construction · Infrastructure Maintenance and Monitoring
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Oklahoma State University
Funding
Oklahoma Department of Transportation
References (36)
Show source-provided references
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