PRE-TREATMENT AND CLEANING OF EQUIPMENT USED WITH UNCURED CEMENTITIOUS MATERIALS
First Claim
1. A composition for treating equipment capable of mixing, placing, or finishing a cementitious material, comprising a colloidal silica, the composition formulated to enable the colloidal silica to prevent cementitious material from adhering to a surface of the equipment.
5 Assignments
0 Petitions
Accused Products
Abstract
A composition capable of pretreating surfaces of equipment for use with an uncured cementitious material, such as uncured concrete includes an aqueous solution with colloidal silica. Pretreatment of a surface with such an aqueous solution may reduce or eliminate adhesion of uncured cementitious material to the surface. A composition capable of cleaning hardened and/or cured cementitious material from the surfaces of such equipment also includes an aqueous composition with colloidal silica. Hardened and/or cured cementitious material may be removed from equipment surfaces by wetting the hardened and/or cured cementitous material with the aqueous solution to soften the cementitious material, and optionally abrading the softened cementitious material to mechanically remove the same from the equipment surfaces. Systems for removing hardened and/or cured cementitious material from the surfaces of equipment capable of use with uncured cementitious material include an aqueous solution with colloidal silica and a mechanical removal component.
3 Citations
20 Claims
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1. A composition for treating equipment capable of mixing, placing, or finishing a cementitious material, comprising a colloidal silica, the composition formulated to enable the colloidal silica to prevent cementitious material from adhering to a surface of the equipment.
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2. A composition for treating equipment capable of mixing, placing, or finishing a cementitious material, comprising a colloidal silica, the composition formulated to enable the colloidal silica to soften hardened and/or cured cementitious material to facilitate removal of the hardened and/or cured cementitious material from the surface of the equipment.
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3. A system for treating equipment capable of mixing, placing, or finishing a cementitious material, comprising:
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a composition comprising a colloidal silica, the composition formulated to enable the colloidal silica to soften hardened and/or cured cementitious material to facilitate removal of the hardened and/or cured cementitious material from the surface of the equipment; and a removal component capable of mechanically removing softened cementitious material from the surface of the equipment. - View Dependent Claims (4, 5)
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6. A method for removing cementitious material from equipment configured for mixing, placing, or finishing the cementitious material, comprising:
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applying a composition comprising a colloidal silica to hardened and/or cured cementitious material on a surface of the equipment, an amount of the colloidal silica in the composition capable of softening the hardened and/or cured cementitious material; and softening the hardened and/or cured cementitious material with the colloidal silica of the composition. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification