Base Stabilization Road Construction Guide
Equipping you to apply soil stabilization and modification treatments with confidence & success.
Acceptance Resources
The information provided herein should be considered as guidelines, and are intended to be used in conjunction with the appropriate documents. Acceptance of stabilized base materials and mat are primarily based on, but not always limited to, the items listed below. Construction of stabilized bases is similar to FDR and ARRA resources for FDR may be used as general guidelines. For detailed information on Acceptance Criteria for FDR, 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.
Acceptance Guidelines
STABILIZED BASE MIX PROPERTIES
- Mix Gradation: Sample and test the aggregate, 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 stabilized material against the volume of stabilizing agent used for a single tanker. Dry stabilizing agent content should be checked by evaluating the mass of stabilized 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 STABILIZED BASE
- 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.
SURFACE TOLERANCE
- The finished surface and grade of the stabilized base 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 stabilized base has been opened to traffic, surface appearance should be visually assessed for any raveling, segregation and rutting ensuring a uniform smooth texture
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