Civil Engineering - Building Materials - Discussion

Cast-iron columns enabled architects to build tall buildings without the enormously thick walls required to construct masonry buildings of any height. Such flexibility allowed tall buildings to have large windows. In urban centres like SoHo-Cast Iron Historic District in New York City, manufacturing buildings and early department stores were built with cast-iron columns to allow daylight to enter. Slender cast-iron columns could also support the weight that would otherwise require thick masonry columns or piers, opening up floor spaces in factories, and sight lines in churches and auditoriums. The historic Iron Building in Watervliet, New York, is a cast-iron building.

So the answer is correct.

The cast iron is good in compression because of high % of carbon, column and strut comprise a member that's why cast iron used in the column but column contain a huge amount of concrete, concrete take compressive load so why steel use for taking the compressive load. We all are known in a RCC member concrete take comp load and steel take tension. So, I think B is the right answer.

Cast iron is used to water pipes etc.

It should not used to column and struts so answer B is correct.

As cast iron is brittle in nature then wrought iron. So, the correct answer seems to be B.

C is the correct answer. I agree with the given option.

I think answer b is right.

Yes, correct answer is C. Because cast iron is good in compression so it is used in column and large water pipes. However wrought iron pipe used for small size water pipes.

No, Cast Iron not used as column or strut.

Wrong because cast iron is brittle as compare to steel, may be the right answer is pipe.

Wrought iron is used for small sized water pipes.

And cast iron is used for columns and struts because the column is designed for comp. Stresses and cast iron is good in compression.