Answer:
What is formwork ?
Formwork is the term used for the process of creating a temporary mould into which concrete is poured and formed. Traditional formwork is fabricated using timber, but it can also be constructed from steel, glass fibre reinforced plastics and other materials.
Advantage :
- Timber can be cut into any required size easily.
- Timber is light in weight and it can be handled easily.
- Timber has good thermal resistance which prevents the damage of concrete in colder regions.
- It is easy to understand the construction method of timber formwork hence, skilled workers are not necessary.
- It is easy to replace the damaged parts of timber forms.
- Timber formwork can be easily dismantled.
disadvantage :
- Can't be used for long.
- If the timber is dry, it will absorb moisture from wet concrete which could weaken the resultant concrete member.
- Timber with high moisture content (more than 20 % moisture content), wet concrete will shrink & cup leading to open joints & leakage of grout.
Explanation:
Hope it helps :)
