Transport and Placement
- Transport and place concrete within 45 minutes after the water has been added.
- Avoid jerks while transporting concrete to prevent separation of the materials.
- Ensure that there is no segregation, drying-up or stiffening of the concrete while transporting.
- Do not disturb the alignment of the formwork or the reinforcement while placing concrete.
- Place the concrete in horizontal layers of uniform thickness.
- Do not use vibrators to push the concrete laterally.
- In case of slab-concreting, place the concrete against or towards preceding layers and not away from it.
- Start placing from the corner of the formwork in case of flat slabs and from the lowest level in case of sloping slabs.
- Do not pour concrete from a height of more than 1m. Use chutes if the height exceeds 1m.