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Producers of Lime Used in Soil Stabilization or Aggregate Lime Treatment in HMA

Last edit date: 12/27/2023

General: Products on this Authorized Material List (AML) 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.

The following producer(s) and plants of lime have been authorized by the Transportation Laboratory for use when specifications allow or require the use of lime for soil stabilization or aggregate lime treatment in HMA. Refer to section 24-2 and Section 39-2 of the 2015 Standard Specifications and to the Project’s Special Provisions for further requirements.

Manufacturer Product Description Expiration Date
Graymont Western U.S., Incorporated - Cricket Mountain Plant - Delta, UT High Calcium Quicklime 12/2028
Graymont Western U.S., Incorporated - Pilot Peak Plant - Pilot Peak, NV Hydrated Lime 4/2026
Graymont Western U.S., Incorporated - Pilot Peak Plant - Pilot Peak, NV High Calcium Quicklime 4/2026
Lhoist North America - Apex Plant - Las Vegas, NV Quicklime Hydrated Lime 8/2028
Lhoist North America - City Of Industry - City Of Industry, CA Hydrated Lime 8/2028
Lhoist North America - Nelson Plant - Peach Springs, AZ Quicklime Hydrated Lime 8/2028
Lhoist North America - Riverside - Riverside, CA Hydrated Lime 8/2028
Lhoist North America - Stockton - Stockton, CA Hydrated Lime 8/2028

Disclaimer: Caltrans assumes no liability or responsibility for the accuracy or validity of the information contained in the tables above if used by any outside entities.

Notes:

  1. Approval issued by Caltrans to qualified producers of lime authorizes them to supply lime to Caltrans projects using a Certificate of Compliance.
  2. The information contained herein, shall not be used for advertising purposes, nor is it an endorsement by Caltrans.
  3. Instructions on how a producer and plant are placed on the Authorized Material List can be found in the Authorization Criteria for Producers of Lime for Use in Soil Stabilization and Aggregate Lime Treatment in HMA.

Materials on the AML will require reauthorization five (5) years after the date they are added to the AML.

Caltrans contact: Richard Wilmshurst, (916) 227-7041, richard.wilmshurst@dot.ca.gov