Issues you may face
BS EN 1504 Principle 4 is concerned with structural strengthening by increasing or restoring the structural load bearing capacity of an element of the concrete structure. It is essential when using this Principle that all stresses associated with a repair and the original or deteriorated structure are considered. Certain systems may impose additional stresses on the repaired structure, resulting in changes in the function of the original structure.
Deflections due to increases in loads applied to the original structure, forming cracks to reinforced concrete slabs.
2. Voids or insufficient reinforcement
Voids in the concrete or insufficient rebar found in the structure.
3. Seismic damage
Damage due to earthquakes or sudden impact (explosions), causing structural failure and cracking.
4. Structural bonding
Hardened precast concrete to hardened precast concrete for repair.
Overloading to structural elements due to extra loads applied to columns, forming structural cracks to columns and beams.
Cracking to structural concrete due to insufficient reinforcement, flexural cracks, shear loading or overloading.