acheving quality standerds
DESCRIPTION
This presentation provides some guidelines to achieve the quality standers in building construction.TRANSCRIPT
ACHIEVING QUALITY STANDARDS
A LEARNING & SHARINGEXERCISE
INTERIM REVIEW WORKSHOP
QUALITY OF BASIC MATERIALS
• Foundation Stone – Size, hardness• Bricks and blocks – Size and strength• Sand – Free of excessive clay and impurities• Metal – Consistency of size• Timber – Quality and sizing• Roof tiles – Consistency of quality
How can quality of the above materials be assured?
REJECT POOR QUALITY, USE GOOD QUALITY BRICKS
REJECT POOR QUALITY BLOCKS
SAND WITH EXCESSIVE CLAY/IMPURITIES; NOT TO BE USED FOR MASONRY AND CONCRETE WORK
CHECK ON-SITE FOR SAND QUALITY
REJECT POOR QUALITY ROOFING TIMBER
REJECT POOR QUALITY TILES
REJECT MISMATCHED TILE BRANDS, AND NOTICABLE COLOUR DIFFERENCES
CHECK FOUNDATION TO FINISHES
• Foundation
• Plinth beam
• Compacted earth fill
• Superstructure
• Roof
• Doors and windows
• Wall and floor renderings
• Wall finishes
FOUNDATION PROBLEMS
FOUNDATIONS – PROBLEM/SOLUTION
FOUNDATION PROBLEMS
PLINTH BEAM PROBLEMS
PLINTH BEAM PROBLEMS
SAFE SOIL – NO PLINTH BEAM NEEDED
COMPACTED EARTH FILL PROBLEM
COMPACTED EARTH FILL SOLUTION
WALLS TO BE KEYED AT JUNCTIONS
QUALITY SUPERSTRUCTURE MASONRY
NOTE SERIOUS ERROR IN CASTING LINTEL
CORNER REINFORCEMENTS MISSING
CORNER REINFORCEMENTS MISSING
REINFORCEMENT AT CORNERS VITAL
• Clearly explain to masons and beneficiaries why vertical reinforcements must be used at key corners of the building
• Always check that this is done
LINTEL & CORNER REINFORCEMENTS
LINTEL CASTING - LOCAL PRACTICE; OKWITH PRECAUTIONS
CANTILEVERED SIDE EAVES FOR ROOF: GOOD PRACTICE
CANTILEVERED SIDE EAVES FOR ROOF: GOOD PRACTICE
WHAT SHOULD BE DONE, WHAT AVOIDED?
PAINT ROOF TIMBERS BEFORE PLACEMENT
NOTE ROOF TIMBERS UNPAINTED BEFORE PLACEMENT, & RECTIFY PROMPTLY
NOTE ROOF TIMBERS UNPAINTED BEFORE PLACEMENT, AND RECTIFY PROMPTLY
CHECK QUALITY OF DOOR & WINDOW FRAMES
PLACEMENT OF DOORS & WINDOWS: GOOD PRACTICE
NOTE REINFORCEMENTS NOT BENT OVER WALL PLATE; RECTIFY PROMPTLY
FAULTY ROOF SUPPORT TIMBER FRAMING
MISSING: ADEQUATE PAD SUPPORT FOR ROOF TIMBERS
WHAT SHOULD BE AVOIDED?
RIDGE PLATE NOT IDEALLY PLACED!
IMPROPER PLACEMENT OF ROOF TILES
NOTE ERRORS IN ROOFING ELEMENTS & RECTIFY PROMPTLY
SINGLE END BATTEN ON EDGE UNSTABLE & IMPROPER; FIX DOUBLE BATTENS
BARGE BOARD IMPROPERLY PLACED; BATTEN ENDS EXPOSED
INSUFFICIENT CONCRETE BANDS @ ROOF
INSUFFICIENT CONCRETE BANDS @ ROOF
CHECK IMPROPER FIXING OF DOOR/WINDOW FRAMES & HINGES; RECTIFY PROMPTLY
CHECK ON QUALITY OF PLASTER RENDERING
HOW ROOF & CHIMNEY STACK LEAK RELATED PROBLEMS CAN BE RESOLVED
STRIVE TO IMPROVE DESIGN DETAILS
ACHIEVING QUALITY STANDARDS
ALWAYS AIM FOR THE BEST QUALITY IN CONSTRUCTION;
LEAVE A LEGACY THAT ENDURES!
THANK YOU
Vasant PullenayegemHousing Consultant