Application Guide · LL-TEQ™
LL-TEQ application processes
Description of works, equipment and advantages — three cold, in-place processes with no bitumen or asphalt plant.
Section 1
In-place cold pavement reconstruction with structural stabilization
FDR — Full Depth Reclamation. For roads at end of life or with structural distress. The cold recycler scarifies and integrates LL-TEQ technology into the existing pavement in a single pass, turning the road into a monolithic, cohesive and waterproof structure.
Specification wording
Specification wording provided to engineering firms on request.
Execution — Contractor
Project workflow
Step 1
Scarification and LL-TEQ integration
The cold recycler scarifies and integrates LL-TEQ technology into the existing pavement at an average depth of 150 mm, in a single pass.
Step 2
Profiling with the motor grader
The grader profiles the treated material to restore profile, slopes and crown specified in the contract documents.
Step 3
First compaction pass
The double-drum vibratory roller performs a first pass to densify the material and limit displacement.
Step 4
Final precision pass with the grader
The grader performs a final precision pass to adjust the profile to specification tolerances.
Step 5
Final compaction — 95% Proctor
The double-drum roller reaches a minimum of 95% standard Proctor density.
Step 6
Surface sealing
Surface sealing by topical application with a spray-bar tanker, or with an emulsion distributor.
Equipment and crew
No specialized machinery required
All equipment is already commonly used in road construction. Standard road crew, trained by LL-TEQ.
Cold recycler
Standard cold recycler. Traditionally used for integrating lime or Portland cement into the structure.
Tanker truck
Pressurized spray-bar tanker. Feeds the recycler and applies the surface seal.
Motor grader
Standard motor grader. Profiling equipment used on all road construction sites.
Roller compactor
Tandem vibratory roller. Standard road compaction equipment.
Section 2
In-place cold surface sealing by topical spray
Fog Seal. For roads still in sound condition, in early or mid-life aging. The binder penetrates surface pores, restores superficial cohesion degraded by oxidation, waterproofs the surface and protects against UV.
Specification wording
Specification wording provided to engineering firms on request.
Execution — Contractor
Project workflow
Single step
Surface sealing
Surface sealing by topical application with a spray-bar tanker, or with an emulsion distributor.
Equipment and crew
Equipment comparable to bitumen emulsions
Equipment comparable to that used for bitumen emulsions on conventional sites. Standard road crew, trained by LL-TEQ.
Tanker truck
Pressurized spray-bar tanker.
Distributor (alternative)
Standard emulsion distributor.
Section 3
Cold in-place pothole spot repair (APH system)
LL-TEQ™ (APH) system — Asphalt Pothole Mix. Cold spot repair with LL30 and LL25, performed by an LL-TEQ accredited installer. The procedure is provided at training.
Specification wording
Specification wording provided to engineering firms on request.
LL-TEQ · First projects
Full support until the crew is autonomous
LL-TEQ supports the contractor on the first projects to ensure conforming execution. Once the crew is trained and self-sufficient, the contractor carries out subsequent projects independently.
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