Causes of breaking the edges of the columns
1- The wood is not valid.
2 - not to clean the wood and paint with oil
3 - Do not spray wood with water before casting.
4- Heterogeneity of the concrete mix.
5- Do not compact concrete during casting.
6 - Do not spray water four times after pouring for several times.
7. Remove the wood before 48 hours.
8 - not to knock on the wood at the moment of dismantling in light and simple ways to isolate the wood from the concrete.
