Blocks made of concrete; blocks made of concrete for coastal protection; blocks made of concrete for river bank protection; cast concrete decorative articles; concrete; concrete articles for retaining slopes; concrete articles for stabilising slopes; concrete blocks; concrete constructional panels; concrete facing panels; concrete panels for retaining earth; concrete products for use in gardens; concrete products for use in landscaping; concrete products for use in roadways; concrete products for use in walkways; concrete provided with coloured surface finishes; concrete provided with decorative surface finishes; concrete provided with pattern imprinted surface finishes; concrete reinforced with synthetic fibres; porous concrete stones; premixed concrete provided with a decorative surface finish; reinforced concrete; textured concrete finishes; tunnel lining segments made of concrete; works of art of stone, concrete or marble