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:
Jul. 03, 2018

Filed:

Jan. 15, 2016
Applicant:

Lafarge, Paris, FR;

Inventors:

Pascal Bost, Saint Quentin Fallavier, FR;

Alexander Pisch, Saint Quentin Fallavier, FR;

Ellis Gartner, Saint Quentin Fallavier, FR;

Vincent Morin, Saint Quentin Fallavier, FR;

Isabelle Dubois-Brugger, Saint Quentin Fallavier, FR;

Assignee:

LAFARGE, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 7/345 (2006.01); C04B 28/02 (2006.01); C04B 28/04 (2006.01);
U.S. Cl.
CPC ...
C04B 7/3453 (2013.01); C04B 28/025 (2013.01); C04B 28/04 (2013.01);
Abstract

A hydraulic binder which includes a clinker with a specific shape, the clinker including as main phases, given as weight percentages relative to the total weight of the clinker: (i) 70 to 95% of a belite phase having a particle size such that the Dv50 ranges from 5 to 15 μm; (ii) 5 to 30% of a calcium aluminoferrite phase; and (iii) less than 5% of minor phases; the clinker having an AlO/FeOweight ratio of less than 1.5; and the clinker including less than 5% of alite phase and less than 5% of calcium sulphoaluminate phase; and at least 0.5% dry weight of an activator made of calcium sulphate, as a weight percentage relative to the total weight of phases (i) to (iii).


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