Damaged central shaft of clinker stockpile
Erosion of concrete section and rupture of steel reinforcement
Erosion of concrete section and rupture of steel reinforcementtrial repair
Special self-supporting formwork anchored to the existing concrete section
Inner surface after completion of concrete repair
Central shaft after completion of repair
Make OR Break Factor
Properties of the material used in the repairs had to be perfectly formulated to suit the default tough conditions of heat and abrasion.
THE CHALLENGE :
- The heat and abrasive properties of the clinker had led to concrete erosion, resulting in a 0.8 mts. x 3 mts. vertical slit on the outer face.
THE ODDS :
- The entire job had to be completed within a shutdown period of just 7 days
- The access to the silo was only about 0.6 mts. x 1 mt. in dimension, making access difficult
- Accumulated dust on the surface of the silo made working conditions unbearable
OUR RESPONSE :
- After an initial condition assessment of the structure was undertaken and results analyzed, we designed a retrofit method
- This included providing additional MS reinforcements by anchoring it to existing RCC
- We then patched up the damaged concrete sections with heat and abrasion-resistant material