Method for removing hardened concrete

Details Method for removing hardened concrete Method for removing hardened concrete

1994-04-04

1995-09-19

Silbaugh, Jan H.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 2214, 134 41, 134 42, C23G 102, C23G 108

Patent

active

054512646

ABSTRACT:
A method and composition for removing hardened concrete from surfaces on trucks, mixers, and other equipment used in the concrete industry. The cleaning composition includes hydroxyacetic acid, a soap agent, and a degreasing agent mixed together in an aqueous solution. In the preferred embodiment, the amounts of each ingredient by percent weight are as follows: 17.5% hydroxyacetic acid, the soap agent 4%, the degreasing agent -2%, and water -76.5% To remove the hardened concrete, the cleaning solution is evenly applied over the surface of the hardened concrete and maintained in contact with the concrete for at least five minutes. The hardened concrete is transformed into soft, puttylike concrete chunks by the cleaning composition. After the hardened concrete has been maintained in contact with the cleaning composition for a sufficient length of time, the soft putty-like concrete chunks are easily brushed or sprayed from the surface.

REFERENCES:
patent: 3577349 (1971-05-01), Haines
patent: 4608086 (1986-08-01), Dodge

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