17 INSULATORY AND PROTECTIVE COATINGS, DRESSINGS AND CLADDINGS COMPRISING A MIXTURE OF HYDRAULICALLY BONDED CEMENT, SAND AND OTHER ADDITIVES, WITH OR WITHOUT FIBROUS REINFORCEMENT, FOR METAL PIPES, CONTAINERS, STRUCTURAL ELEMENTS, BUILDING ELEMENTS AND BUILDINGS, AND FOR USE IN THE REPAIR OF STEEL REINFORCED CONCRETE, AND PROVIDING MECHANICAL AND/OR CORROSIVE PROTECTION