Concrete; transport concrete; ready mixed concrete; mortar; ready mixed mortar; aggregates for concrete, especially sand and gravel; concrete products, namely, light, heavy and aerated concrete building blocks, pavements, prefabricated ceilings and walls, prefabricated cellar units, prefabricated sewage works units; standard cements; masonry cement; cement mixes; specialty cements, namely, aluminous cements, white cements, trass cements, highly sulphate resisting cement and Portland cement fo...