Civil Engineering - Building Materials - Discussion

43. 

Initial setting time of cement for asbestos cement products should be not less than

[A]. 30 minutes
[B]. 50 minutes
[C]. 75 minutes
[D]. 90 minutes.

Answer: Option D

Explanation:

No answer description available for this question.

Nasir Khan said: (Aug 30, 2015)  
I think initial setting time should not less than 30 min right and final setting time 10 hours.

Amar said: (Oct 19, 2015)  
Its for port land cement.

Rampras said: (Nov 11, 2015)  
For lime pozzolana cement (Asbestos), the initial setting time shall not be less than 90 mins.

Munish said: (Nov 26, 2015)  
Please send initial and final setting times in various cement types.

Gaurav Singh said: (Jan 13, 2016)  
Initial setting time 120 min and final setting time 24 hour for lime pozzolan cement (asbestos cement).

Uday Diwan said: (Oct 22, 2016)  
Initial setting time 30 min and final setting time 8-10hr.

Dhiraj Meena said: (Dec 21, 2016)  
Initial setting time 30 min and final setting time 10 hours.

Shivakumar Policepatil said: (Oct 9, 2017)  
30min intial settings time is ordinary Portland cement.

Shivakumar Policepatil said: (Oct 9, 2017)  
It's only ordinary Portland cement.

Moustacheman said: (Oct 20, 2017)  
For Portland cement: Initial setting time=30 minutes n final setting time=10hours for LP40 initial=3hrs final=1day ie 24hrs For cement asbestos initial=1 and half hour ie 90 minutes.

Kishan Datta said: (Oct 5, 2018)  
Portland Pozzolana cement and Asbestos cement have less C3A content as compare to Portland cement. So its setting time between 90 min to 120 min.

Avro said: (Oct 11, 2018)  
Then what is the final setting time of cement for asbestos cement products?

Mala said: (Apr 3, 2019)  
For asbestos cement, initial setting time is 90mins, for lime-pozzolana its 120 mins.

Kamran Iqbal said: (Nov 15, 2019)  
OPC:(Ordinary Portland cement)
Initial setting time = 30 min.
Final setting time = 10 hours.

LPC:(Lime pozzolana cement)
Initial setting time= 120 min (2 hours).
Final setting time = 6 hours.

High alumina cement:
Initial setting time= 3.5 hours.
Final setting time= 5 hours.

Ashutosh said: (Jul 15, 2020)  
Thanks @Iqbal.

Malialpesh said: (Dec 21, 2020)  
Intensify the clinker grinding allowed supplementation does not impair the quality of the cement in an amount of not more than 0.5% by weight of cement. Initial setting time of cement should occur no earlier than 1.5 hours, and the end - no later than 10 hours from the start of mixing.

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