As a leading silo repair expert, Citi-Con was entrusted with extensive emergency repairs to silos.
Again, we delivered according to expectation by completing quality workmanship within the three-week contractual period. This significant feat was achieved by deploying our rope access expertise, which provided a cost-effective and faster method of executing the works. Our seasoned rope access technicians also performed in a safe manner while working at heights of up to 36m.
The work scope included repairing seven silo conical roofs. High pressure washing was used to remove debris before thoroughly inspecting the roofs for cracks. They were repaired with a 100mm polyester membrane and sealed with a primer coat, before applying three coats of a.b.e. Super Laycryl acrylic liquid waterproofing compound, to complete the repairs.
We also repaired concrete spalling on the walls. After undertaking an extensive structural investigation and preparatory work, we treated the reinforcing bar with a.b.e. Durarep ZR primer. A single-component liquid epoxy resin, enriched with metallic zinc, this system provides excellent corrosion protection properties.
Thereafter, we applied a.b.e. Epidermix 344, a structural wet-to-dry concrete adhesive before reinstating the areas with a.b.e. Durarep FR. The polymer-modified fibre-reinforced, cement-based mortar was allowed to cure for three days, before treating repaired areas with a.b.e Silocoat, a two-component polymer-modified cementitious coating.
