08-16-2017, 10:12 PM
Decorative concrete involves using concrete in roles that are not strictly related to its functional elements. They are structurally sound and also provide a decorative finish that resembles polished stone, with less cost for materials. Precast concrete slabs are well known building materials for applications such as curtain walls, patio stones and floor sections.
Decorative applications in new concrete
1)Integral colourants:
Color material is blended with the concrete mix to color the aggregate, cement and sand throughout. iron oxides colorants are used and can create colors including blacks, yellows, and reds. Black is also achieved with carbon black. Greens can be achieved using chromium, and ultramarine.
2)Stamping:
Rubber imprinting stamps are impressed into wet concrete slabs to create natural stone or brick textures.
3)Form liner:
Concrete can also be cast into unique and detailed designs using urethane form liner. The sculptor creates the design to be used in the concrete using clay, polyurethane or wax. When the original art is complete, a cast is made using synthetic liquid rubber, from which form liners are produced in the reverse image of the original.
Decorative applications on existing concrete:
1)Concrete dyes:
Concrete "dyes" take many different forms and compositions and can be used on both residential and commercial concrete applications, including sound/retaining walls, bridges, countertops, floors and the like.
2)Water Based Staining:
Water Based Stains can still achieve a translucent look like acid; some stains are able to achieve an opaque color and/or a translucent effect.
3)Acid Staining:
Acid staining is a chemical reaction. A mixture of water, salts and acid is applied to the concrete surface and later neutralized by a basic solution of ammonia and water. This creates new colors on the concrete surface due to chemical reaction with the existing minerals (primarily lime) in the concrete.
4)1/4" Stamped Overlays:
Rubber imprinting tools stamps are impressed into thin pre-mixed concrete overlay material to create natural stone or brick textures.
5)General Overlaying
olymer cement overlays:They consist of a proprietary blend of Portland cements, various aggregates and polymer resins. adding a polymer resin to the cement and aggregate greatly increases the performance characteristics and versatility of conventional cements, mortars and concrete materials.
6)Polishing:
Concrete can be polished with Mechanical grinders and diamond pads of increasing grit sizes.
7)Epoxy:
Applied over acid stained and/or overlays to seal and protect. Some epoxies are also colored.
8)Engraving:
Existing concrete can be remodeled by cutting lines and grooves into its surface. Geometric patterns, straight or curved lines and custom designs can be cut directly into the surface of the concrete creating the look of tile, flagstone, cobblestone and many other common surface patterns.
Report:
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For more:
http://en.wikipediawiki/Decorative_concrete
http://patentstorm.us/patents/5173233/fulltext.html