Building, surface making and surface repairing materials, all being non-metallic; concrete, mortar; cementitious products; jointing, sealing, coating, bonding and grouting products; materials for repairing and protecting concrete; materials for preparing concrete surfaces for bonding; materials for protecting re-inforcing steel-work; preparations for preventing deterioration of concrete surfaces; preparations for adding to cementitious mixtures for treatment of concrete based materials; all other goods in class 19