- ChallengeConstruction of the 120,000 sq. m new factory making transmission parts involved using existing soils in the building’s foundation as well as soils taken from the surrounding site near the project. However, the soil condition proved to be fairly poor and was later identified as not being good enough for the project. The materials on the site suffered as a result of high humidity, with a low bearing capacity and very poor mechanical properties.
- SolutionsInreco Company is a specialist in the application of recycling and stabilization of soils. Working closely with Carmeuse, it carried out detailed laboratory testing and used on-site experimental sectors to find the best quality solution for the right Viacalco binders as well to ascertain the correct implementation method. This led to the identification of at least two types of different soils, and these also required two types of binder: Viacalco F and Viacalco D, to be used in 2% and 3% proportions.
- ResultsThe final stabilization proved to be very efficient. It was then approved by the investor for use with 130,000 cubic meters of soil, starting from the base layers and also for treating the fill material that had to be used for building the platform for the future construction. Results for the bearing capacity, measured at the final layer with static plate Ev2, ranged from a min. 115 MN/m2 to 120 MN/m2. These values enabled the investor to create shallower upper layers for aggregates. Compression resistance was also measured after seven days, and already showed values from 1.2 to 1.9 N/mm2.