PREPARATIONS TO BE MADE BEFORE READY-MIX CONCRETE PLACEMENT
PREPARATIONS TO BE MADE BEFORE READY-MIX CONCRETE PLACEMENT 1) Quality formwork must be used. Quality formwork ensures that concrete is properly worked and has a good appearance.
Excavation
EXCAVATION Before site layout can be performed, a site plan prepared by the municipality in accordance with the zoning status must be obtained. Based on the dimensions given in this plan, a survey engineer determines one corner and the building line of the structure.
IMPORTANT CONSIDERATIONS FOR VIBRATOR USE
IMPORTANT CONSIDERATIONS FOR VIBRATOR USE 1) The vibrator should be used after concrete has been spread with a shovel. If concrete is transported with a vibrator, segregation occurs.
STANDARD FLOOR FORMWORK STAGES
STANDARD FLOOR FORMWORK STAGES 1) Setting out the grid lines 2) Erecting the columns 3) Plumbing the columns 4) Cutting columns at floor level and setting up beams 5)
PUMP PLACEMENT OF READY-MIX CONCRETE
1) Concrete shall be placed by filling the cross-section to ensure homogeneity and prevent the formation of unwanted cold joints. If the formwork is not properly constructed, this process may cause columns to blow out.
CONCRETE PLACEMENT IN HOT WEATHER
CONCRETE PLACEMENT IN HOT WEATHER 1) Particularly in areas where reinforcement is dense, formwork with high thermal conductivity should not be used for reinforced concrete. 2) Before concrete placement begins, formwork and reinforcement must be wetted.
BRICK WALL LAYING
BRICK WALL LAYING 1)Bricks shall be wetted before laying. 2)Before laying the first course, the floor and column sides must be cleaned and wetted. 3)Brick wall courses must be at the same height and level at window sill levels.