Dangote Cement is launching a new grade of cement superior in quality with increased strength and will sell at the same price of existing grades. The Group Managing Director of the company, Devakumar Edwin, said the 52.5 grade cement is over 60 per cent higher in strength than the existing ones and is the first of its kind in sub-Sahara Africa, adding that the new grade would further reduce the incidences of house collapse in the country.