Complete construction work concrete mixing steel fixing concrete poring

1. Concrete Mixing
Materials: Cement, sand, aggregates, water, and additives (if needed).
Methods:
Manual mixing: Suitable for small jobs, using a shovel on a flat surface.
Mechanical mixing: Uses mixers to ensure a uniform mix for larger volumes.
Ready-mix concrete: Pre-mixed concrete supplied from batching plants.
2. Steel Fixing (Reinforcement Placement)
Preparation:
Arrange rebar (reinforcing bars) based on design drawings.
Ensure correct size, spacing, and overlaps.
Use binding wire to tie rebar in place.
Checkpoints:
Maintain proper cover to prevent exposure to the elements.
Ensure alignment to structural specifications (e.g., beams, columns, slabs).
3. Formwork Setup
Install molds or shuttering to shape the concrete as per design (made from wood, metal, or plastic).
Secure formwork to avoid leakage and misalignment.
Apply a release agent to prevent concrete from sticking.
4. Concrete Pouring
Process:
Begin pouring within 90 minutes of mixing.
Use buckets, pumps, or wheelbarrows to transport the mix to the formwork.
Place concrete in layers, avoiding segregation (separation of materials).
Compaction:
Use vibrators to remove air pockets and ensure uniform compaction.
Check for even distribution, particularly in corners and along rebar.
5. Finishing
Level and smooth the surface using trowels and screeds.
Apply broom finish or other textures as required for non-slip surfaces.
6. Curing
Begin curing immediately after finishing to prevent cracking.
Methods: Water curing, plastic sheeting, curing compounds, or wet hessian cloth.
Maintain moisture for

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