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What is minimum cement content for concrete permanently under sea water to avoid the corrosion of reinforcement?(a) 5 kN/m^3(b) 5 N/m^3(c) 3 kN/m^3(d) 3 N/m^3The question was posed to me in final exam.The origin of the question is Cement Concrete Construction topic in portion Cement Concrete Construction of Construction & Building Materials

Answer»

The CORRECT option is (C) 3 kN/m^3

Easy explanation: HOWEVER it is not advisable to take the risk of corrosion of reinforcement for prestressed concrete and hence the SEAWATER should not be used for MAKING the prestressed concrete.



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