# Civil Engineering - Concrete Technology - Discussion

### Discussion :: Concrete Technology - Section 3 (Q.No.36)

36.

Pick up the incorrect statemnt from the following. For performing compressive strength test of cement

 [A]. cement and standard sand mortar are used in the ratio of 1 : 3 [B]. water is added at the rate of + 3.0 percentage of water where P is the percentage of water for standard consistency [C]. A cube mould of 10 cm x 10 cm x 10 cm is used [D]. The perpared moulds are kept in a atmosphere of 50% relative humidity [E]. The temperature of water in the submerged tank for curing moulds, should be 27° ± 2°C.

Explanation:

No answer description available for this question.

 Apurba said: (Mar 21, 2014) Cube mould size is 70.6mm*70.6mm*70.6mm. So option C is correct.

 Aravind Gottumukkala said: (Aug 29, 2014) 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.

 Anooooo said: (Jan 21, 2015) 90% relative humidity for 24 hours.

 Soumya Choudhuru said: (Mar 17, 2015) But as per code it is 100% for 24+/-.5hrs.

 Darshan H A said: (Jul 4, 2016) At least 90% relative humidity for 24 hours and cube size 7.06cm x7.06cm. Options C and D are wrong.

 Adnan said: (Jul 26, 2016) Option C and D are incorrect.

 Abhishek Nandi said: (Sep 10, 2016) Only option C is incorrect.

 Bishal said: (Oct 4, 2016) I too think the Option C and D is incorrect.

 Shubham Umak said: (Mar 22, 2017) Yes, option C and D is incorrect. I too agree @Bishal.

 Ravi said: (Mar 25, 2017) Yes, C and D are incorrect option.

 Dibya said: (Apr 17, 2017) I also agree C and D. But how the answer A is correct? Anybody explain.

 Mathi said: (Jul 7, 2017) Actually, the proper mix ratio is 1:3.

 Bunty said: (Aug 4, 2017) I think option C is incorrect.

 Amar Saxena said: (Oct 24, 2017) According to me, it is C and D.

 Papay said: (Dec 2, 2017) I think C & D are incorrect.

 Suraj Shrestha said: (Dec 24, 2017) 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.

 Narendra said: (Jan 18, 2018) Option C & D both incorrect.

 Tushar said: (Feb 9, 2018) Option A is correct one.

 Anilpoojar said: (Feb 16, 2018) 7.06 * 7.06 * 7.06cm for consistency test. 10 * 10 * 10 for strength test.

 Gaurav Patil said: (Feb 22, 2018) Option D is incorrect.

 Ashu said: (Feb 24, 2018) C and D 90% humidity as per is 456.

 Sangam said: (May 3, 2018) This test is done for concrete not for cement. So, The given answer A is the right one.

 Sangam said: (May 3, 2018) This test is done for concrete not for cement. So, The given answer A is the right one.

 S .Bhakta said: (May 4, 2018) Option C & D is also incorrect.

 Ruchir said: (May 4, 2018) I think option C & D are incorrect.

 Wassi said: (Jun 13, 2018) 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: (Aug 6, 2018) The question is related for cement and not for concrete so answer A is correct.

 Nishoch Yadav said: (Sep 30, 2018) Here, the question is related to cement not a cement concrete. So, Ratio = 1:6 size = 70.6mm temp = 27±2.

 Shahid Ali said: (May 4, 2019) Yes, C and D are incorrect.

 Vivek said: (Jul 26, 2019) It's p/4+3.5.

 Kouahik Das said: (Aug 3, 2019) Answer C and D, but mould is 76 * 76 *76 mm and Humidity 90% this value as per IS code 456-2000. Thank you.

 Budh Maurya said: (Nov 30, 2019) Option C & D is the right answer. Cube size 70.6*70.6 mm2 Humidity 90%.

 Rana Awais said: (Aug 19, 2020) Mortar cube 70.6mm ratio (1:3).

 Pramod Jaiswal said: (Oct 18, 2020) 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.

 Ankush Rathod said: (Nov 23, 2021) Option D and C were wrong. Rest of the think like proportion, temperature and percentage are correct.