Concreting -Process of making concrete .

1. Collection of Ingredient.

- Collect all the ingredient that is required for making concrete.

Where we should store the ingredient ?

- No moisture will be contact with the ingredient.

2. Batching of ingredient.-Measuring of ingredient that is required for making concrete.

i )Volume batchingii)Weight batching

3. Mixing of ingredient . - The aim of mixing of concrete is to produce homogenous , consistent and uniform coloured concrete .

i) Hand mixing ii) Machine mixing

4. Transporting the concrete.

-Transfer the concrete from the place where it is mixed to the form work. i) pan ii) Wheel barrow iii)Truck mixer iv)Belt conveyor v)Pumps

5. Placing of Concrete .

- Process of fill the formwork with the concrete .

6. Compaction of Concrete .

- Reducing the air voids that is present in freshly mixed concrete at the time of placing & make the concrete dense .

i) Tamping rod . ii) Vibrator.

7. Finishing of concrete .

-Process of levelling , smoothing , compacting of freshly and recently placed concrete to provide desired appearance .

Method of finishing of concrete .

i) Screeding ii) Trowelling

8. Curing of Concrete . - The operation of maintaining the temp. of freshly placed concrete for some definite period after placing the concrete for sufficient hydration. Objective of curing .i) Improve weather resisting quality .ii) Durability .

iii) Impermeablity .iv) Reduce shrinkage .

Method of Curing.

i) Sprinkle of water.ii) Ponding method .iii) steam method .iv) Covering concrete surface with wet sack.

Thank you

Prepared By:Masud alam Ansari