发明名称 |
GLASSFIBERHOLDIGE SEMENTPLATER OG FREMGANGSMAATE FOR DERES FREMSTILLING |
摘要 |
<p>Sheet material, which may be flat or of profiled (e.g. corrugated) cross-section, suitable for use as building panels, e.g. roofing slates, is formed of a fibre-reinforced cement composition comprising, in weight percentages:- Ordinary Portland cement 50 to 71% Pulverised fuel ash 14 to 40% Volatilised silica (containing at @@least 86% SiO2 5 to 12% Filamentised chopped glass fibre strands 2 to 7% these components constituting at least 90% by weight of the composition, the material having a minimum average modulus of rupture of 16 N.mm<-2> and a minimum density of 1.3 g.cm<-3>. The balance of the composition may include up to 4% by weight cellulose pulp and up to 5% of a plasticiser such as ball clay, bentonite or talc, together with small quantities of known dispersing agents and flocculating agents.</p> |
申请公布号 |
NO844294(A) |
申请公布日期 |
1985.05.02 |
申请号 |
NO19840004294 |
申请日期 |
1984.10.29 |
申请人 |
PILKINGTON BROTHERS PLC, |
发明人 |
SMITH, JAMES WATSON,;SMITH, EVERARD JOHN,;GREIG, IAN ROBERT KENNEDY,;KNOWLES, RODNEY PETER, |
分类号 |
C04B28/04;(IPC1-7):C04B/ |
主分类号 |
C04B28/04 |
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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