Engineered for superior soil treatment and stabilization

Proviacal® is a dedicated brand for advanced soil treatment and stabilization solutions. Our premium-quality lime and engineered blends are specifically developed to improve the workability and mechanical performance of a wide range of soil types, ensuring reliable and durable improvement. Designed to meet the rigorous demands of civil engineering projects, Proviacal® helps you achieve excellent results by enhancing cost efficiency, meeting project deadlines, and supporting circular construction practices. Whether you are building roads, railways, platforms, or dikes, Proviacal® is your go-to solution for soil improvement.

Why choose Proviacal®

Our solutions are designed to perform reliably under pressure, whether facing tough soil conditions, tight deadlines, or strict sustainability goals. With proven results across major infrastructure projects, Proviacal® combines:

  • technical excellence,
  • operational reliability,
  • and environmental responsibility

With Proviacal®, we support you to build better, faster, and smarter.

Supporting key applications in civil engineering

Proviacal® plays a vital role in enhancing the performance of infrastructure projects. Our lime-based solutions are essential for improving soil workability, mechanical strength, and long-term durability across a wide range of civil engineering applications.

Key applications

  • Soil improvement: Proviacal® rapidly dries wet soils and flocculates clays, improving the workability and increasing the load-bearing capacity of the soil.
  • Stabilization of embankments: Proviacal® continues to react with clay minerals through pozzolanic reactions, forming cementitious compounds, increasing the mechanical strength and cohesion of the soil progressively over the years. Lime-treated soils are stabilized against swelling, and exhibit better resistance to water, frost and erosion.
  • Trench backfill: Proviacal® enables the reuse of excavated materials on-site, reducing landfill waste and transport.
  • Hydraulic works: Proviacal®-treated soils offer stable permeability and better erosion resistance for dikes, dams, and riverbanks. Also Proviacal®-treated road embankments are more resilient to flooding.
  • Aggregates and sand recycling: Proviacal® cleans sticky or clay-rich aggregates and sand using a dry washing technique, making them easier to process and again suitable for construction.

Expertise and services that keep your site moving

With Proviacal®, you benefit from more than just high-performance products, we provide practical support and services to keep your project on track. From efficient deliveries to expert guidance on soil, performance, and application, we make it easier to get the job done.

We also connect you with qualified and trusted contractors experienced in using Proviacal® products, ensuring smooth execution and reliable results.

Proviacal® is a registered trademark of S.A. Lhoist Recherche et Développement.

Turn challenges into solid results

Discover how Proviacal® can reinforce your projects with proven strength.