EP0169022A2
Expired / Lapsed
EP
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Concrete structural member and method for manufacture thereof
Assignee: Taisei Corp
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Filing: 1985-07-10
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Granted: —
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Expires: 2005-07-10
Abstract
Abstract A concrete structural member of improved stability is produced by preparing a concrete composite layer 5 having a concrete layer 2 on one side and an aggregate layer 4 on the other side thereof, impregnating the composite layer 5 with a monomer, thermal-catalytic treatment the monomer-impregnated composite layer 5 thereby polymerizing the monomer embedded in the composite layer 5, and thereafter placing fresh concrete 7 on the aggregate layer 4' side of the polymer-impregnated composite layer 6.
Inventors
- 👤 Shizuko Kushida
- 👤 Takashi Tsubahara
- 👤 Takafumi Naito
- 👤 Seiji Kaneko
- 👤 Yasunori Matsuoka
- 👤 Takefumi Shindo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 11:42
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/008; E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/044; Y; Y10; Y10S; Y10S264/00; Y10S264/57
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
A concrete structural member locally possessing a polymer-impregnated concrete layer, comprising a concrete composite 6 having a polymer-impregnated concrete layer 2' on one side and a polymer-impregnated aggregate layer 4' on the other side thereof and having said two layers bound intimately to each other and a layer of cement concrete 7 placed directly on said aggregate layer 4'.
Claim 2
Dependent Claim
59 words
A concrete structural member locally possessing a polymer-impregnated concrete layer, comprising a concrete composite 6 having a polymer-impregnated concrete layer 2' on one side and a polymer-impregnated aggregate layer 4' on the other side thereof and having said two layers bound intimately to each other and a layer of cement concrete 7 placed directly on said aggregate layer 4'.
Claim 3
Independent Claim
120 words
A method for the manufacture of a concrete structural member, which comprises: forming a concrete layer 2 of cement concrete in a prescribed thickness, placing aggregate 3 on the entire surface of said concrete layer 2 while said concrete layer is in an uncured state thereby giving rise to a composite concrete layer 5 consisting of said concrete layer 2 and an aggregate layer 4, curing and drying said composite concrete layer 5 and subsequently impregnating said composite concrete layer 5 with a monomer, polymerizing said monomer embedded in said composite concrete layer 5 to form a concrete member and placing concrete 7 on the aggregate layer 4' side of said concrete member 6 possessing said polymer-impregnated concrete layer 2'.
Claim 4
Independent Claim
120 words
A method for the manufacture of a concrete structural member, which comprises: forming a concrete layer 2 of cement concrete in a prescribed thickness, placing aggregate 3 on the entire surface of said concrete layer 2 while said concrete layer is in an uncured state thereby giving rise to a composite concrete layer 5 consisting of said concrete layer 2 and an aggregate layer 4, curing and drying said composite concrete layer 5 and subsequently impregnating said composite concrete layer 5 with a monomer, polymerizing said monomer embedded in said composite concrete layer 5 to form a concrete member and placing concrete 7 on the aggregate layer 4' side of said concrete member 6 possessing said polymer-impregnated concrete layer 2'.
Claim 5
Dependent Claim
23 words
A method according to claim 2, wherein said aggregate 3 to be placed on said concrete layer 2 is coated with adhesive agent.
References Cited (Backward Citations)
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