The information provided herein should be considered as guidelines, and are intended to be used in conjunction with the appropriate documents. Acceptance of FDR materials and mat are primarily based on, but not always limited to, the items listed below. For ARRA resources and detailed information on Acceptance Criteria, please refer to the The Basic Asphalt Recycling Manual, the ARRA Construction Guidelines FDR101, FDR102, FD103 and the ARRA QC Guidelines FDR301 and FDR302. Suggested mitigation for non-compliance are indicated in the Troubleshooting Section and the Basic Asphalt Recycling Manual.
FDR MIX PROPERTIES
Mix Gradation: Sample and test the pulverized material, prior to the addition of stabilizing agent, for maximum particle size and gradation.
Stabilizing Agent Content: Bituminous stabilizing agent and slurried stabilizing agent content should be checked by evaluating the mass of reclaimed material against the volume of stabilizing agent used for a single tanker. Dry stabilizing agent content should be checked by evaluating the mass of reclaimed material applied against the area of application used for a single tanker or load or by using a canvas patch test.
Stabilizing Additive Content: If required by the mix design requirements, stabilizing additives (e.g. corrective aggregate, RAP, cement or lime) should be checked by evaluating the mass of additive applied against the area of application used for a single tanker or load or by using a canvas patch test.
COMPACTION OF FDR MAT
Compaction should be continuously monitored using nuclear density testing, or an owner agency approved method, throughout the time compaction is being completed to verify the compaction requirement is met.
The finished surface and grade of the reclaimed material should be checked regularly during placement using a 10 ft (3 m) straight-edge. The straight edge may be placed in any direction on the surface, except across the crown.
SURFACE CONDITION PRIOR TO SURFACING
After the FDR mat has been opened to traffic, surface appearance should be visually assessed for any raveling, segregation and rutting ensuring a uniform smooth texture