19 Materials, not of metal, for building and construction; cement; concrete; concrete aggregate; cement and concrete made by renewable energy sources; blended cements and concrete; cement and concrete mixes; premixed cement or concrete; fibre cements; magnesium cement; refractory cement; building and construction materials made of cement or concrete; cement or concrete based mixtures for use in building and construction; cement or concrete based coatings for use in building and construction; cement or concrete based materials for use in building and construction; cement or concrete based wall coatings; cement or concrete blocks; cement for blast furnaces; cement or concrete posts, slabs, blocks, wall components, wall members, tiles, cladding, panels, slopes, piles, plates, posts, sheets, beams, roof panels, roofing, mouldings, architectural products; fireproof cement coating; sheets of fibre cement for use in building; soil stabilising cement for use in agriculture; substances made of cement or concrete for filling and repair of surface defects and flaws; mixtures of cement, sand and stone material; cement or concrete products for use in buildings, gardens, landscaping, roadways, walkways, ponds, pools, water tanks; mortar; grout