Blue Circle General Purpose Cement 25kg Grey is a general-purpose cement that is compatible with admixtures. These applications are inclusive of concreting, floor screeds, mortar jointing and pointing. Its quality is assured with ISO 14001 and is CE marked. Blue Circle is one of the building industry’s most iconic brands. Its history stretches back over 100 years and its trusted reputation for quality and reliability is legendary. Tarmac Cement and Lime Ltd. manufactures Blue Circle cement products.