4−54 SECTION 414 WARM MIX ADDITIVE
414.01 DESCRIPTION . This work consists of incorporating a WMA (Warm Mix Additive) in HMA
(Hot Mix Asphalt).
414.02 MATERIALS. One unit of WMA shall be added to each ton of HMA . All WMA shall be
selected from the RIDOT Approved Materials List and shall be added at a dosage rate recommended by the manufacturer.
414.03 CONSTRUCTION METHODS. If HMA is designated as “with WMA”, the Contractor shall
use a WMA. If HMA is not designated as “with WM A”, the Contractor may request to use a WMA at his own discretion and expense. Additionally, the Engineer may direct the Contractor to use a WMA. If a WMA is used it shall be for an entire day’s production for that class of HMA.
414.04 METHOD OF MEASUREMENT. WMA will be measured by the number of units actually
used in accordance with the specifications and/or as directed by the Engineer.
414.05 BASIS OF PAYMENT The accepted quantity of the WMA will be paid for at its respective
contract unit price per each as listed in the Proposal.
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 232–232 of 826.