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1. (WO1986003245) AMELIORATIONS APPORTEES AU CIMENT ARME DE FIBRES
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CLAIMS :

I.A building panel composed of, or having an outer layer of fibre reinforced cement, characterised in that an arrangement of tension resistant
reinforcement (24) embedded in at least a part of the panel ("12". in or adjacent the fibre reinforced cement, the reinforcement comprising a multiplicity of elongate members (26,28) arranged in a mesh with the members secured together where they intersect to constrain the material of the panel throughout the zone in which the reinforcement lies.

2. A panel as claimed in Claim 1, characterised in that the mesh comprises one set of spaced parallel extending elongate elements (26) and a second set of spaced parallel extending elements (28) extending transverse to the first set and secured- thereto where they intersect the first set.

3. A panel as claimed in Claim 2, characterised in that the typical length of the fibres in the cement and the size of the spaces in the mesh (24". are of the same order,

4. A panel as claimed in any preceding claim, characterised in that the reinforcement elements (26,28) are of steel or are of plastics material and the elements are secured together by welding.

5. A panel as claimed in any preceding claim, characterised in that the fibre in the cement (12) is of one or more of the following materials: glass fibre, mineral fibre, steel fibre, synthetic fibre or vegetable fibre.

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PCT/GB85/00545

6.A permanent formwork panel comprising a building panel as claimed in any preceding claim.

7.A building structure having an outer surface portion provided by a permanent formwork panel (12) as claimed in any preceding claim, and a structural concrete portion (32) bonded to the permanent formwork panel.

AMENDED CLAIMS
[received by the International Bureau on 25 April 1986 (25.04.86);
original claim 1 amended; other claims unchanged (1 page)]

1. A building panel composed of, or having an outer layer of fibre reinforced cement, characterised in that an arrangement of tension resistant reinforcement (24) is embedded or partially embedded in at least a part of the panel (12) in the fibre reinforced cement, the reinforcement comprising a multiplicity of elongate members (26, 28) arranged in a mesh with the members secured together where they intersect to constrain the material of the panel throughout the zone in which the reinforcement lies.

2. A panel as claimed in Claim 1, characterised in that the mesh comprises one set of spaced parallel extending elongate elements (26) and a second set of spaced parallel extending elements (28) extending transverse to the first set and secured thereto where they intersect the first set.

3. A panel as claimed in Claim 2, characterised in that the typical length of the fibres in the cement and the size of the spaces in the mesh (24) are of the same order.

4. A panel as claimed in any preceding claim, characterised in that the reinforcement elements (26,28) are of steel or are of plastics material and the elements are secured together by weldin .

5. A panel as claimed in any preceding claim, characterised in that the fibre in the cement (12) is of one or more of the following materials: glass fibre, mineral fibre, synthetic fibre or vegetable fibre.