1.

If t1=Time at which water is first added to cement, t2=Time when needle fails to penetrate 5 mm to 7 mm from bottom of the mould, t3=Time when the needle makes an impression but the attachment fails to do so, then what is initial setting time?(a) t2-t1(b) t2+t1(c) t3-t1(d) 2*t1The question was posed to me during a job interview.My question is from Setting Time Test in division Types of Cement and Testing of Cement of Concrete Technology

Answer»

The correct choice is (a) t2-t1

For explanation: t2-t1 is the FORMULA to DETERMINE the value of the initial SETTING time of concrete for further PROCESS.



Discussion

No Comment Found

Related InterviewSolutions