| (19) |
 |
|
(11) |
EP 0 165 222 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
13.01.1988 Bulletin 1988/02 |
| (43) |
Date of publication A2: |
|
18.12.1985 Bulletin 1985/51 |
| (22) |
Date of filing: 14.06.1985 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE FR GB IT LI LU NL SE |
| (30) |
Priority: |
15.06.1984 SE 8403220
|
| (71) |
Applicant: A-Betong AB |
|
() |
|
|
| |
|
| (54) |
Concrete element for structural floor |
(57) A concrete element for constructing a structural floor has a prefabricated base slab
(1) of concrete supporting the reinforcement (2) of the element, and a concrete slab
(3) cast onto said base plate. The cast-on slab (3) consists of an upper layer (5)
of concrete having a compressive strength of at least 30 MPa (after 28 days) and a
density of at least 2,300 kg/m
3, and of a lower layer (4) of lightweight aggregate concrete having a density of 600-800
kg/m
3.