发明名称 |
UTILIZACAO DE FIBRAS ORGANICAS CONCRETO DE DESEMPENHO ULTRA ELEVADO PROCESSO DE PREPARACAO DO MESMO E COMPOSICAO |
摘要 |
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 mum, 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. |
申请公布号 |
PT1263690(E) |
申请公布日期 |
2005.01.31 |
申请号 |
PT20010907735T |
申请日期 |
2001.02.08 |
申请人 |
LAFARGE;RHODIA CHIMIE;BOUYGUES TRAVAUX PUBLICS |
发明人 |
GILLES ORANGE;PRAT, EVELYNE;CASANOVA, ANDRE PASCAL;BEHLOUL, MOULOUD |
分类号 |
C04B14/04;C04B14/20;C04B14/38;C04B14/48;C04B16/06;C04B20/00;C04B28/02 |
主分类号 |
C04B14/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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