The ladle turret, integral to the hydraulic system with rotary arms, was supported by a base anchored with 59 M64 bolts embedded in cement grout.

Over time, the grout had become severely contaminated with oil and lost its strength, compromising the structural integrity and alignment of the pedestal. The primary objectives were to:

• Replace the damaged grout with a new, high-quality cementitious mix

• Isolate and protect the anchor bolts during the repair process

• Achieve precise alignment and re-establish a sound, vibration-dampening foundation

The repair work was executed by a team of certified specialists through the following key steps:

Foundation Preparation and Lifting
The base frame was carefully lifted using hydraulic jacks and a crane to prevent any damage to the anchor bolts. This ensured safe access for the removal of approximately 60–70 mm of deteriorated grout (up to 90–100 mm in certain areas), reaching sound concrete.

Grout Removal and Surface Cleaning
The existing grout, heavily saturated with oil and lacking cohesive strength, was meticulously chipped away. The removal process ensured that only sound concrete remained, providing a solid substrate for the new grout.

Installation of New Grout
After repositioning the new base with alignment tolerances of 0.2 mm using screw jacks, formwork was installed and sealed with ALPHATEC® 240 Epoxy putty. A coat of ALPHATEC® 400 was applied to the exposed concrete to promote adhesion between the new and old materials. Cementitious grout was then pumped into position, ensuring no gaps or voids.

Final Checks and Curing
The formwork was removed after the grout had cured sufficiently to allow for light mechanical work. Anchor bolts were re-tightened 48 hours after pouring, securing the foundation and ensuring the ladle turret could operate safely and efficiently.

The comprehensive regrout procedure successfully restored the ladle turret foundation, thereby maintaining productivity and safety in the steel production process.

By eliminating oil contamination and ensuring precise alignment, the project established a solid foundation that effectively dampens vibrations and withstands high operational forces.