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Warm Mix Asphalt Technologies

Last edit date: 3/17/2025

General:

Products on this Authorized Material List have been evaluated and found acceptable for use on California Department of Transportation (Caltrans) projects, provided the products are used in accordance with the manufacturer’s instructions.  Products on this list are subject to additional Job Control testing during construction or installation.

Evaluation Criteria: Instructions on how material is placed on the Authorized Material List (AML) can be found in the Authorization Requirements for Warm Mix Asphalt Technologies.

ADDITIVE TECHNOLOGIES
Product Name Supplier CommentsBABA Act Information*Re-Authorization Date
ZycoTherm SP All States Materials Group Unconfirmed10/20/2028
ZycoTherm SP2 All States Materials Group Unconfirmed5/24/2030
WarmGrip® Ultra 1 Arkema formerly known as AD-here® Ultra 1Unconfirmed10/27/2028
WarmGrip® Ultra CA Arkema formerly known as AD-here® Ultra CAUnconfirmed3/15/2030
Cecabase RT Arkema-Road Science Unconfirmed10/17/2028
Anova (R) 1501 Warm Mix additive Cargill Unconfirmed4/18/2030
Evotherm J1 Ingevity, Incorporated Unconfirmed6/19/2029
Evotherm M1/M1-A Ingevity, Incorporated Unconfirmed12/1/2028
Evotherm P25 Ingevity, Incorporated Unconfirmed12/1/2028

Caltrans contact: WMA Administrator, WMA.Administrator.OAP@dot.ca.gov

*As attested to by the supplier as of April 14, 2026 per definition in 2 CFR 184 and 23 CFR 635.410. Stakeholders should use this information in conjunction with corresponding Caltrans special provision section 6-1.04 to understand applicable requirement for the project.

The California Department of Transportation (Caltrans) is implementing statutory changes required by the Bipartisan Infrastructure Law -Build America, Buy America Act (BABA), as outlined in 2 CFR 184 and 23 CFR 635.410.

https://www.fhwa.dot.gov/construction/cqit/buyam.cfm