Process for impregnating concrete with polymers
First Claim
1. In the process of impregnating large volumes of concrete in the field, such as roadbeds, walkways, and bridge decks, with a polymer or a monomer for in situ polymerization wherein it is necessary to dry said concrete prior to impregnation, the improvement of employing a temperature measurement to determine moisture content which comprises(1) determining the appropriate dryness for impregnation of said concrete by heating said concrete until a temperature-indicating device below the surface and within the concrete at the desired depth of monomer penetration indicates a minimum temperature of about 230°
- F., and(2) impregnating the concrete to the desired depth with said polymer or monomer composition.
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Abstract
A process for drying concrete to the appropriate moisture content for proper impregnation of the concrete with a polymer or a monomer for in situ polymerization. This is accomplished by heating the concrete until its temperature at the desired depth of polymer penetration is at least about 230° F. In another embodiment of the invention the dried concrete is impregnated with a monomer composition capable of polymerization and is polymerized within the concrete.
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Citations
8 Claims
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1. In the process of impregnating large volumes of concrete in the field, such as roadbeds, walkways, and bridge decks, with a polymer or a monomer for in situ polymerization wherein it is necessary to dry said concrete prior to impregnation, the improvement of employing a temperature measurement to determine moisture content which comprises
(1) determining the appropriate dryness for impregnation of said concrete by heating said concrete until a temperature-indicating device below the surface and within the concrete at the desired depth of monomer penetration indicates a minimum temperature of about 230° - F., and
(2) impregnating the concrete to the desired depth with said polymer or monomer composition. - View Dependent Claims (2)
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3. In the process of impregnating large volumes of concrete in the field, such as roadbeds, walkways, and bridge decks, with a monomer for in situ polymerization wherein it is necessary to dry said concrete prior to impregnation, the improvement of employing a temperature measurement to determine moisture content which comprises
(1) determining the appropriate dryness for impregnation of said concrete by heating said concrete until a temperature-indicating device below the surface and within the concrete at the desired depth of monomer penetration indicates a minimum temperature of about 230° - F.
(2) impregnating the concrete to the desired depth with a monomer composition capable of polymerization, and (3) polymerizing the monomer within the concrete. - View Dependent Claims (4, 5, 6, 7, 8)
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Specification
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- Resources
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Current AssigneeDonald E. Kline, Paul R. Blankenhorn, Philip D. Cady, Richard E. Weyers
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Original AssigneeDonald E. Kline, Paul R. Blankenhorn, Philip D. Cady, Richard E. Weyers
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InventorsWeyers, Richard E., Kline, Donald E., Cady, Philip D., Blankenhorn, Paul R.
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Primary Examiner(s)Smith, Ronald H.
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Assistant Examiner(s)Childs, Sadie L.
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Application NumberUS05/768,022Time in Patent Office554 DaysField of Search427/314, 427/136, 427/384, 427/386, 427/385 C, 427/377, 428/538, 404/77, 404/79, 404/95, 73/73US Class Current427/314CPC Class CodesC04B 28/02 containing hydraulic cement...C04B 41/0072 Heat treatmentC04B 41/009 characterised by the materi...C04B 41/48 Macromolecular compoundsC04B 41/63 Macromolecular compounds
