Road structure – process – or apparatus – Traffic director
Patent
1992-02-14
1993-12-21
Neuder, William P.
Road structure, process, or apparatus
Traffic director
425385, B29C 5902, E01F 900, G09B 2100
Patent
active
052716902
ABSTRACT:
The present invention provides a method for forming a concrete surface having visual and tactile warning means for pedestrian traffic as well as for the users of wheeled conveyances produced by pouring a prepared concrete mixture into a concrete receiving form, floating the surface of the poured concrete, partially setting the concrete until a plastic state is achieved, covering the surface of the concrete with a release agent of a color different from the color of the concrete. Next, a stamp member is provided having a generally planar stamp surface interrupted by a pattern of indentations formed in the generally planar stamp surface. Additional colored release agent is applied to the stamp member and the stamp member is then positioned onto the concrete surface so that the release agent on the generally planar stamp surface contacts the release agent on the concrete surface. Pressure is then applied to the stamp member forcing concrete to flow into and fill the indentations, simultaneously causing intimate mixing of the colored release agent with the concrete flowing into the indentations. The stamp member is removed yielding a generally planar concrete surface superficially covered with color release agent and a pattern of projections of a shape corresponding to the shape of the indentations of the stamp member and being comprised of an intimate mixture of concrete and colored release agent. The concrete is set until hardened and subsequently rinsed, whereby the superficial colored release agent is removed from the generally planar surface leaving the projections colored with the release agent and contrasting with the generally planar surface from which the release agent was removed.
REFERENCES:
patent: 4131406 (1928-12-01), Fresquez
patent: 4620816 (1986-11-01), Kupfer
patent: 4715743 (1987-12-01), Schmanski
patent: 4993867 (1991-02-01), Usow
patent: 5061172 (1991-10-01), Fennessy, Sr.
Neuder William P.
Stampcrete International Ltd.
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