Weak or failing subgrades and base layers can compromise the durability and safety of any pavement or structural foundation. Here’s how each base mitigation options tackles these issues:
Base Replacement
Ideal for situations where the current base material is too compromised to rehabilitate. By completely replacing the weak material with new, structurally sound aggregate or base material, this option provides a fresh, reliable foundation.
Deep Lift
Effective when extra support is required to increase load-baring capacity. This method involves adding a thick layer of high-quality base or asphalt to strengthen the structure, particularly useful for roads or surfaces subject to heavy loads or traffic.
Stabilization
Stabilization transforms weak or reactive soils into a more robust, stable material by mixing in agents like lime, cement, or fly ash. This process is beneficial in areas with high moisture content or expansive soils, providing a long-lasting solution that improves both durability and load baring capacity.
Compaction
Crucial for enhancing the density and stability of base materials. By compacting the base layer, contractors can eliminate voids and increase the material’s load-distribution capacity, preventing settlement or deformation under load.
Each technique addresses specific challenges in subgrade and base improvement, providing tailored solutions to ensure the longevity and performance of the structure. Selecting the right method depends on factors like soil conditions, load requirements, and environmental factors.