Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 2 (Q.No. 18)
18.
If P is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is
Discussion:
17 comments Page 2 of 2.
Dhirendra Chauhan said:
8 years ago
.85p is the right answer for initial setting time test.
Praveen said:
9 years ago
I think the Anwer is 0.75 P.
Sudheer said:
9 years ago
It is not 400 gm, 500 is right, if anyone have doubt means refer concrete tech text book.
Jayesh said:
10 years ago
Before commencing setting time test, do the consistency test to obtain the water required to give the paste normal consistency (P).
Take 400 g of cement and prepare a neat cement paste with 0.85 P of water by weight of cement.
Gauge time is kept between 3 to 5 minutes. Start the stopwatch at the instant when the water is added to the cement. Record this time (t1).
Fill the Vicat mould, resting on a glass plate, with the cement paste gauged as above. Fill the mould completely and smooth off the surface of the paste making it level with the top of the mould. The cement block thus prepared is called test block.
Take 400 g of cement and prepare a neat cement paste with 0.85 P of water by weight of cement.
Gauge time is kept between 3 to 5 minutes. Start the stopwatch at the instant when the water is added to the cement. Record this time (t1).
Fill the Vicat mould, resting on a glass plate, with the cement paste gauged as above. Fill the mould completely and smooth off the surface of the paste making it level with the top of the mould. The cement block thus prepared is called test block.
Vimalparmar said:
1 decade ago
Hi how to got this answer help me.
Chandan kumar said:
1 decade ago
Why 0.85p is correct?
Ganesh said:
1 decade ago
Why 0.85P?
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