The influence of diffusion of salts under pressure on cement concrete durability.
It depends on:
- Chemical composition of salt
- Type of cement
- Magnitude of pressure
.....
The harmful salt ions enter to the bulk of concrete at various depths under hydro-static pressure and also to the embedded steel, resulting in concrete disintegration, which in turn increase its permeability and provides greater accesses to the chloride ions for coming in contact with steel.
The salt ions enter to the concrete under hydro-static pressure and it effects to the steel present in RC member, resulting in concrete disintegration, which increases the permeability and provides accesses to the chloride ions coming in contact with the steel.
Dear Dr. Sajjad , Thank you so much for your interesting and valuable comments.
Yes, the salt ions enter to the concrete under hydro-static pressure and it effects to the steel present in RC member, resulting in concrete disintegration, which increases the permeability and provides accesses to the chloride ions coming in contact with the steel.
Harmful salts are of two types, chloride which attacks steel reinforcement and sulfates which attacks concrete. The source of salts is either embedded in concrete as part of unsuitable sand or gravel, or attack from the surroundings such as soil or water.when the impact is under hydrostatic press, the deterioration of concrete will be accelerated.
The aggressive salt ions (chloride which attacks steel reinforcement and sulfates which attacks concrete) enter to the bulk of concrete at various depths under hydro-static pressure and also to the embedded steel, resulting in concrete disintegration, which in turn increase its permeability and provides greater accesses to the chloride ions for coming in contact with steel.
I completely agree with that, harmful salts are of two types, chloride which attacks steel reinforcement and sulfates which attacks concrete. The source of salts is either embedded in concrete as part of unsuitable sand or gravel, or attack from the surroundings such as soil or water.when the impact is under hydrostatic press, the deterioration of concrete will be accelerated.
Dear Dr. Saad Sarsam, Thank you so much for your interesting and valuable comments.
The source of salts is either embedded in concrete as part of unsuitable sand or gravel, or attack from the surroundings such as soil or water.
Yes, the influence of diffusion of salts under pressure on cement concrete durability depends on: 1- Chemical composition of salt, 2- Type of cement and 3- Magnitude of pressure.
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