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Tuesday 22 September 2020

September 22, 2020

Multiple choise questions on brick

 


Brick is the oldest materials used for construction works. Bricks are used for Interior, Exterior, partition, footing, piers and other load bearing structures.
Basis on physical and Mechanical properties Bricks are classified as

1) First Class Brick: Water absorption for first class brick is  about 12 to 15% of its dry weight when it is immersed in water for 24 hrs
    Compressive strength of First Class Bricks is should not be less than 10.5 N/mm^2

2) Second Class Brick:Water absorption for first class brick is  about 16 to 20% of its dry weight when it is immersed in water for 24 hrs
    Compressive strength of Second Class Bricks is should not be less than 7.5 N/mm^2

3)Third Class Brick:Water absorption for first class brick is  about 21 to 25% of its dry weight when it is immersed in water for 24 hrs
    Compressive strength of Third Class Bricks is should not be less than 5.0 N/mm^2


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September 22, 2020

Cement questions and answers


 Cement is a most important material in construction industries. It is act as a binding material in Morter and Concrete. The raw materials by which cement is produce are Lime, Silica, Alumina and Iron Oxide.

There are different types of cements such as

1) Ordinary Portland Cement

2) Rapid Hardening Cement

3) High Alumina cement

4) Sulphate Resisting Portland Cement

5) Portland Slag Cement

6) Low heat Portland Cement

7) Quick setting Cement

8) Colored  Cement 

and many more cement are available for different purpose.

We are providing Mock Test on Cement for everyone