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 1 of 4.
Nizam Ali said:
3 years ago
Actually, option "A "is correct because here mentioned cement and sand mortar.
(2)
Sunil said:
3 years ago
As per RS Khurmi. Conventional and Objectives type.
1:3 is correct to determine the compressive strength of the cube and it is kept in an atmosphere of at least 90% relative humidity for 24 hrs.
1:3 is correct to determine the compressive strength of the cube and it is kept in an atmosphere of at least 90% relative humidity for 24 hrs.
(4)
Ajay Kumar Yadav said:
3 years ago
I think Option C is right.
(2)
Ankush Rathod said:
4 years ago
Option D and C were wrong. Rest of the think like proportion, temperature and percentage are correct.
(4)
Pramod jaiswal said:
5 years ago
For compressive strength of cement:
Cement sand mortar ratio 1:3.
Cube size 70.6cm.
Relative humidity 90%.
Temp 27*2.
Water is added at the rate of + 3.0 percentage of water where P is the percentage of water for standard consistency.
Ref: R.S. KHURMI.
Cement sand mortar ratio 1:3.
Cube size 70.6cm.
Relative humidity 90%.
Temp 27*2.
Water is added at the rate of + 3.0 percentage of water where P is the percentage of water for standard consistency.
Ref: R.S. KHURMI.
(3)
Rana Awais said:
5 years ago
Mortar cube 70.6mm ratio (1:3).
BUDH MAURYA said:
6 years ago
Option C & D is the right answer.
Cube size 70.6*70.6 mm2
Humidity 90%.
Cube size 70.6*70.6 mm2
Humidity 90%.
(1)
Kouahik das said:
6 years ago
Answer C and D, but mould is 76 * 76 *76 mm and Humidity 90% this value as per IS code 456-2000.
Thank you.
Thank you.
Vivek said:
6 years ago
It's p/4+3.5.
Shahid Ali said:
6 years ago
Yes, C and D are incorrect.
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