Dear Nasad
RCC columns are constructed with MS steel bars and cement concrete with the help of shuttering made all round at the time of filling the column with cement concrete. Where as Reinforced brick masanary columns are where on outer side brick masonary sides are made than MS bars are laid in between the hollow space and this space is filled with cement concrete and this case shuttering is not required.There is not more differance in cost. Construct RCC column fior long term survival.