What question did this study set out to answer?

To evaluate whether using warm-mix asphalt (WMA) at reduced production temperatures achieves balanced rutting and cracking resistance across laboratory-designed and plant-produced mixtures.

August 15, 2026Transportation Research Record Journal of the Transportation Research Board

Laboratory Evaluation of Reduced-Temperature Warm-Mix Asphalt for Balanced Performance during Plant Production

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Authors

HBHilda Obeng BoatengAuburn University FYFan YinAsphalt Institute SDSamantha DixonAuburn University

Discussion

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Implication

Comparative laboratory evaluation demonstrates balanced rutting and cracking resistance in reduced-temperature asphalt mixtures, highlighting plant production variabilities.

Key Points

To evaluate whether using warm-mix asphalt (WMA) at reduced production temperatures achieves balanced rutting and cracking resistance across laboratory-designed and plant-produced mixtures.
Evaluated laboratory-prepared and plant-produced mixtures from two field projects in Virginia and Missouri featuring volumetric control and balanced mix design (BMD) hot-mix asphalt (HMA) and WMA.
Assessed rutting via the asphalt pavement analyzer, high-temperature indirect tensile tests, and Hamburg wheel tracking tests; evaluated durability with the Cantabro test and cracking with IDEAL-CT.
Virginia BMD WMA mixtures exhibited significantly higher cracking resistance than HMA mixtures while maintaining satisfactory rutting resistance in both design and plant production.
Missouri BMD mixtures significantly exceeded control mixtures in laboratory cracking resistance, though plant-produced variations resulted in equivalent cracking performance during production.

Cite This Study

Boateng et al. (2026) studied this question.

synapsesocial.com/papers/6a8019fe75c2e31742c86531 https://doi.org/10.1177/03611981261469551

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Implication

Comparative laboratory evaluation demonstrates balanced rutting and cracking resistance in reduced-temperature asphalt mixtures, highlighting plant production variabilities.

Laboratory Evaluation of Reduced-Temperature Warm-Mix Asphalt for Balanced Performance during Plant Production

Discussion

Member takes

Implication

Key Points

Cite This Study

Laboratory Evaluation of Reduced-Temperature Warm-Mix Asphalt for Balanced Performance during Plant Production

Discussion

Member takes

Implication

Key Points

Cite This Study

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