4.1 MAINTENANCE AND REHABILITATION OF BUILDINGS
REHABILITATION OF BUILDINGS – DEMOLITION OF BUILDINGS –SAFETY
ASPECTS – GENERAL – PRECAUTIONS DURING DEMOLITIONS –
SEQUENCE OF DEMOLITION OF OPERATION – DEMOLITION PROCESS
OF TRUSSES, GIRDERS AND BEAMS, WALLS, FLOORING – CATCH
PLATFORM – LOWERING REMOVAL AND DISPOSAL OF MATERIALS –
MECHANICAL DEMOLITION –REPAIRS TO BUILDING – REPAIRING OF
PLASTERING WORKS- FIXING DOORS IN – MAKING OPENING IN
MASONRY AND FIXING DOORS AND WINDOWS – RENEWING GLASS
PANES WITH WOODEN FILLETS – FIXING FAN CLAMPS IN EXISTING
R.C.C SLAB – REPAIR TO TERRAZZO(MOSAIC) FLOORING.
4.2 PRECAUTIONS TO PREVENT CRACKS IN BUILDINGS
CRACKS – GENERAL – HAIR CRACK – STRUCTURAL CRACK –
HORIZONTAL CRACK IN MASONRY – VERTICAL / DIAGONAL CRACK SAT
WALLS – R.C.C BEAMS OR PILLARS – TRANSVERSE CRACKS IN R.C.C
SLAB AND SUNSHADE – REPAIRS – METHODS – MATERIALS USED FOR
FILLING CRACKS