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 2 of 4.
S .bhakta said:
7 years ago
Option C & D is also incorrect.
Wassi said:
7 years ago
D is in correct, but yes concrete is tested in 10*10*10 mould but compressive strength of 10*10*10 is more than stand design concrete.
Hameed said:
7 years ago
The question is related for cement and not for concrete so answer A is correct.
NISHOCH YADAV said:
7 years ago
Here, the question is related to cement not a cement concrete.
So, Ratio = 1:6
size = 70.6mm
temp = 27±2.
So, Ratio = 1:6
size = 70.6mm
temp = 27±2.
Shahid Ali said:
6 years ago
Yes, C and D are incorrect.
Vivek said:
6 years ago
It's p/4+3.5.
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.
Rana Awais said:
5 years ago
Mortar cube 70.6mm ratio (1:3).
Ravi said:
8 years ago
Yes, C and D are incorrect option.
Aravind gottumukkala said:
1 decade ago
Absolutely answer is C, The mould is of 7.06*7.06*7.06 (cm) with area of face of the cube being 50 cm^2.
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