Civil Engineering - Building Materials - Discussion

36. 

Which one of the following is an air binding material ?

[A]. Gypsum
[B]. Acid-resistant cement
[C]. Quick lime
[D]. All of these.

Answer: Option D

Explanation:

No answer description available for this question.

Sharath said: (Jun 17, 2013)  
What are these air binding materials?

Asamuddin said: (Jul 2, 2015)  
We know that quick lime react with air and then make an stone. I hope that the answer is C quick lime.

Kashiram Upadhyaya said: (Aug 25, 2015)  
What is the meaning of air binding?

Kamsastra said: (Oct 21, 2016)  
Gypsum is not air binding material.

Umesh Pathak said: (Dec 10, 2016)  
Air biding materials react in presence of air and form a hard mass. All these material show such property hence these are air binding material.

Umesh Pathak said: (Dec 10, 2016)  
They are air-hardening binding materials such as building gypsum and lime, cement concrete, building mortar, wall and roof materials, construction steel, wood, waterproof materials such as asphalt, building plastic, heat-insulating and sound absorbing materials, and finishing materials.

Lakhan Singh said: (Apr 6, 2018)  
Gypsum and quick lime both have air binding property.

Naveen said: (Jun 18, 2019)  
Option C is the correct answer because quick lime is the air binding material.

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