EFFECT OF SALT CRYSTALISATION IN CONCRETE - CONCRETE TECHNOLOGY
Surface scaling of concrete is observed due to salt crystallization. The formation of crystals in the concrete due to presence of salt generates enough pressure which will lead to cracking as well as surface scaling in concrete. The durability of the concrete structure gets effected due to the presence of salt in the concrete. The only way to prevent this effect is to stop the movement of salts into the concrete. The only way to stop this movement is either improve the permeability of the concrete or protect the surface of the concrete with a coating. Sounds simple but has a detrimental effect if not treated on time. Water to cement ratio in the concrete plays an important role to stop the movement of salts into the concrete. This module will help you understand the importance of salt crystallization and its preventive measures to improve the durability of concrete.