Method of creating chemical induced pre-stressed zones in concrete
OwnerSteven L. Highinventor
Life of this patent
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Abstract
Embodiments of the present invention comprise a method for creating pre-stressed zones in concrete. In one embodiment, a circular blade is coated with a chemical which retards the setting of the concrete. The circular blade is then rolled through the wet concrete, thus transferring the retarding chemical from the blade into the concrete. The region of wet concrete that has the retarding chemical introduced into it does not set until after the surrounding concrete has set and shrunk, thus creating a pre-stressed zone which typically manifests itself as a crack, visible upon setting of the wet concrete. Other embodiments describe alternative ways of introducing the chemical into the wet concrete.
Claims23
A method for creating a pre-stressed zone in concrete comprising:
- physically penetrating a top surface of wet concrete;
- applying a chemical which retards or inhibits the setting of wet concrete at the physical penetration;
- retarding or inhibiting the setting of the wet concrete;
- and
- thereafter setting the wet concrete.
A method for creating a pre-stressed zone in concrete comprising:
- applying a chemical which retards or inhibits the setting of wet concrete to only that portion of the concrete, when wet, wherein a crack is desired;
- retarding or inhibiting the setting of wet concrete where the crack is desired;
- and
- allowing the concrete to set.
Dependencies are inferred from the claim text.