Rectification works at Structure VB0008.
Works Undertaken:
The repair methodology was refined on-site to minimise demolition while improving structural performance.
- Removal of deteriorated mortar joints along the cracked/separated section
- Localised removal of two stones only where required to access internal defects
- Cleaning and preparation of existing stones and joint interfaces
- Installation of steel reinforcing bars within horizontal joints to improve tensile resistance and structural continuity
- Reinstatement of joints using non-shrink grout (Fosroc Conbextra GP)
- Packing and finishing of joints to ensure proper bonding and alignment
This method allowed strengthening of the wall while preserving the majority of the original structure.
Joint Sealing (Wall–Pavement Interface)
- Cleaning and preparation of joint interface
- Installation of compressible backing rod
- Application of flexible sealant (Fosroc Nitoseal SC600)
Final finishing to ensure weatherproofing and flexibility