SoilTech améliore les performances et réduit les coûts dans la stabilisation des pistes d'aéroport

---

 

Lieu

Maricá – RJ – Brasil

Résumé du projet

In an airport paving project, the need to ensure structural layer stability while respecting tight budget and logistical constraints called for an efficient technical solution. MetaFLO’s SoilTech enabled the use of a lower-cost material (Coarse Crushed Stone) without compromising technical performance.

Le résultat

Stabilized layers that met project specifications and overall savings exceeding R$ 160.000,00.

Contexte et Défis

The project involved construction of the runway’s sub-base and base layers, requiring:

• Effective layer stabilization to ensure long-term durability.
• Cost optimization within the contracted budget.
• Strict adherence to the project timeline.

The technical scenario offered two alternatives:

• Fine Crushed Stone: Higher quality but costly and logistically impractical.
• Coarse Crushed Stone: More affordable and logistically viable, but inadequate alone to meet performance requirements.

Given these challenges, a technology was needed to enhance the performance of Coarse Crushed Stone, ensuring both quality and cost-efficiency.

 

 

Solution implémentée

The team selected MetaFLO’s SoilTech, recognized for its effectiveness in stabilizing sub-base and base layers.

Détails techniques

• Produit appliqué : 
SoilTech
• Dosage : 
0.01%
• Matériaux utilisés : 
Coarse Crushed Stone (lower-grade, cost-efficient)
• Méthode d'application : 
Earthmoving with conventional grading fleet
• Equipment used: 
Tractor with harrow, motor grader, 10,000L water truck, 2 sheepsfoot rollers, 2 smooth-drum rollers

Executed dimensions:

• Sub-base: 550 m × 30 m × 0.15 m
• Base: 550 m × 30 m × 0.20 m

Raisons du choix du produit

• Increased California Bearing Ratio (CBR).
• Improved final density of treated material.
• Stabilized layers using lower-quality material.
• Technically and financially viable solution.

Résultats

Performance technique

• Final density: 2.16 g/cm³
• Compaction rate: 101% (in-situ sand cone method)
• Reduced compaction passes:
37.5% reduction on the base
50% reduction on the sub-base

Productivité et efficacité

• Time savings:
51 hours on the base
and 67.8 hours on the sub-base.
• Material logistics aligned with budget and schedule.

Économies totales

Material savings:
R$ 123.957,00 (17,5%)

Operational savings:
R$ 36.230,02
(equipment, labor, fuel)

Total project savings:
R$ 160.187,02

 

Conclusion

La technologie SoilTech de MetaFLO s'est avérée être une alternative techniquement solide et rentable pour la stabilisation des couches dans des projets d'infrastructure exigeants. La technologie a permis l'utilisation de matériaux plus accessibles tout en respectant les normes de performance, en rationalisant les opérations et en aidant le projet à respecter les délais et le budget.
 

Télécharger le fichier Étude de cas