Modern stamped concrete increased in popularity in the 1970s in part because it was featured in the World of Concrete trade show. He later developed plastic stamps that could imprint both texture and pattern on wet concrete, making the process more efficient. In the late 1970s, manufacturer Jon Nasvik developed lightweight and durable urethane stamps for concrete. īy the 1970s the demand for stamped concrete grew, and the material became a common component in building projects. In 1956, Bill Stegmeier of the Stegmeier Company, discovered that a color powder used to impart an antiquing effect to concrete also had the property of preventing stamps from sticking to concrete, which opened up new possibilities. Later, platform stamps would be made of sheet metal or aluminium. He used wooden platform stamps that could imprint multiple pieces of concrete at once. In the 1950s, Brad Bowman-considered the "father" of modern concrete stamping-began developing and patenting new techniques for producing concrete that resembled non-concrete materials, such as flagstone and wood. Ĭoncrete manufacturers started experimenting with modern decorative concrete techniques as early as the 1890s. In the late nineteenth and early twentieth centuries, concrete companies who received government bids for public works projects sometimes used concrete stamps featuring the company name and sometimes the year in which the concrete was poured, creating a visible historical record of when certain sidewalks were made. The ancient Romans used basic concrete stamping techniques, as evidenced in well-known structures such as the Pantheon.
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