1.

The relative humidity of laboratory should be ___________ for standard consistency.(a) 65 ± 5%(b) 27 ± 2%(c) 50 ± 5%(d) 45 ± 10I got this question in quiz.My question is taken from Standard Consistency Test topic in division Types of Cement and Testing of Cement of Concrete Technology

Answer»

Right CHOICE is (a) 65 ± 5%

To explain: Unless otherwise SPECIFIED this test SHALL be conducted at a TEMPERATURE 27 + 20 C and the relative humidity of laboratory should be 65 + 5%.



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