Patent EP0225404A1 successfully refreshed from Google Patents.
EP0225404A1
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Fibre-reinforced moulded cement body
Assignee: Mitsui Construction Co Ltd
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Filing: 1985-11-28
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Granted: —
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Expires: 2005-11-28
Abstract
Abstract To manufacture a fibre-reinforced moulded cement body, strands (1) of fibres are dispersed in an unhardened cement material (3) and the cement material (3) is then hardened. Before being dispersed in the cement material (3), the strands (1) are impregnated with a binder (2) so that the fibres of the strands (1) are weakly bonded to one another and so that, when the strands (1) are dispersed in the cement material (3), the fibres are released from one another.
Inventors
- 👤 Tadashi Okamoto
- 👤 Sumiyuki Matsubara
- 👤 Masahisa Handa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:54
CPC Classifications
C; C04; C04B; C04B20/00; C04B20/0048
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
A method of manufacturing a fibre-reinforced moulded cement body, which comprising dispersing strands comprising a plurality of fibres into an unhardened cement material by stirring and thereafter hardening the cement material, characterised in that at least some of the strands are impregnated with a binder so that the fibres of the strands are weakly bounded to one another and so that, when the strands are dispersed in the unhardened cement material, the fibres are released from one another.
Claim 2
Independent Claim
78 words
A method of manufacturing a fibre-reinforced moulded cement body, which comprising dispersing strands comprising a plurality of fibres into an unhardened cement material by stirring and thereafter hardening the cement material, characterised in that at least some of the strands are impregnated with a binder so that the fibres of the strands are weakly bounded to one another and so that, when the strands are dispersed in the unhardened cement material, the fibres are released from one another.
Claim 3
Dependent Claim
22 words
A method according to claim 1, wherein the ratio of the strands to the binder is from 5:5 to 9:1 by volume.
Claim 4
Dependent Claim
34 words
A method according to claim 1 or 2, wherein the strands are dispersed in the unhardened cement material in an amount of from 0.5 to 10% by volume relative to the unhardened cement material.
Claim 5
Independent Claim
32 words
A method according to any of claims 1 to 3, wherein the fibres of the strands are from 1 to 50 denier in thickness and from 5 to 30 mm in length.
Claim 6
Independent Claim
46 words
A method according to any of claims 1 to 4, wherein the fibres are carbon fibres, glass fibres, ceramic fibres, aromatic polyamide fibres, aromatic polyether amide fibres, aromatic polysulphide amide fibres, aromatic polysulphone amide fibres, aromatic polyketone amide fibres, aromatic polyamine amid fibres, or steel fibres.
Claim 7
Independent Claim
26 words
A method according to any of claims 1 to 5, wherein the binder is an epoxy resin, a phenolic resin, colloidal silica, or a mixture thereof.
References Cited (Backward Citations)
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