Consider below statements with respect to sulfate attack on cement concrete and identify correct answer.
Statement A: Expansion of cement paste takes place in concrete due to sulfate attack on concrete.
Statement B: Calcium aluminate hydrate can react with sulfate salts and produce calcium sulfoaluminate.
1
Statement A is correct and B is incorrect
2
Both statements are correct
3
Both statements are incorrect
4
Statement B is correct and A is incorrect