The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 03, 2005

Filed:

Aug. 31, 2001
Applicants:

Pascal Casanova, Lyons, FR;

HU Chong, Lyons, FR;

Bernard Clavaud, Cremieu, FR;

Inventors:

Pascal Casanova, Lyons, FR;

Hu Chong, Lyons, FR;

Bernard Clavaud, Cremieu, FR;

Assignee:

LaFarge, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B007/52 ; C04B020/00 ; C04B014/48 ;
U.S. Cl.
CPC ...
Abstract

A concrete in which metallic fibers are dispersed, obtained through mixing with water a composition including a cement; ultrafine elements with a pozzolanic reaction; granular elements distributed into two granular classes (C)>1 mm and <5 mm and (C) ranges from 5 to 15 mm; cement additions; an amount of water E added in the mixture; a dispersant, and preferably a superplasticizer; metallic fibers, in an amount maximum equal to 120 kg per mof concrete, the contents of the various components (a), (b), (C), (C), (d) and the amount of water E, expressed in volume, meeting the following relationships: ratio 1: 0.50≦(C)/(C)≦1.20; ratio 2: 0.25≦[(a)+(b)+(d)]/[(C)+(C)]≦0.60; ratio 3: 0.10≦(b)/(a)≦0.30; ratio 4: 0.05≦E/[(a)+(b)+(d)]≦0.75; ratio 5: (d)/(a)≦0.20. The invention applies to the manufacture of voussoirs without frameworks, of tiles and of elements of the plate, shell type or the like.


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