Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 3 (Q.No. 36)
36.
Pick up the incorrect statemnt from the following. For performing compressive strength test of cement
cement and standard sand mortar are used in the ratio of 1 : 3
water is added at the rate of 
+ 3.0 percentage of water where P is the percentage of water for standard consistency
+ 3.0 percentage of water where P is the percentage of water for standard consistencyA cube mould of 10 cm x 10 cm x 10 cm is used
The perpared moulds are kept in a atmosphere of 90% relative humidity
The temperature of water in the submerged tank for curing moulds, should be 27° ± 2°C.
Discussion:
36 comments Page 4 of 4.
Bunty said:
8 years ago
I think option C is incorrect.
AMAR SAXENA said:
8 years ago
According to me, it is C and D.
Papay said:
8 years ago
I think C & D are incorrect.
Suraj shrestha said:
8 years ago
We use M15 grade or greater concrete .(ie we can't use 1:3 ratio .its use for M10)
And we can use 15*15*15 /10*10*10 cube.
So, option A Is incorrect.
And we can use 15*15*15 /10*10*10 cube.
So, option A Is incorrect.
Anilpoojar said:
8 years ago
7.06 * 7.06 * 7.06cm for consistency test.
10 * 10 * 10 for strength test.
10 * 10 * 10 for strength test.
Ashu said:
8 years ago
C and D 90% humidity as per is 456.
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