Fire-resistant high performance concrete composition

Details Fire-resistant high performance concrete composition Fire-resistant high performance concrete composition

2005-04-19

2005-04-19

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S640000, C106S643000, C252S601000

Reexamination Certificate

active

06881256

ABSTRACT:
The invention concerns the use of organic fibers having a melting point lower than 300° C., an average length l more than 1 mm and a diameter Ø not more than 200 μm, in ultra high performance concrete for improving the concrete fire resistance, the amount of organic fibers being such that their volume ranges between 0.1 and 3% of the concrete volume after setting and the concrete having a compressive strength at 28 days of at least 120 Mpa, a bending strength of at least 20 Mpa, and a spread value in non-hardened state of at least 150 mm, the values being for a concrete preserved at 20° C., the concrete consisting of a particularly hardened cement matrix wherein metal fibres are dispersed.

REFERENCES:
patent: 196 54 502 (1998-06-01), None
patent: 0 934 915 (1999-08-01), None
patent: 2 778 654 (1999-11-01), None

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