Abstract: A method for producing concrete parts and a structure includes (i) supplying a first concrete composition based on a quick binder containing Portland cement, curing accelerator system based on Al2O3, CaO lime and SO3 sulphates, a retardant system and a superplasticizer, (ii) adding a releaser system for forming a second concrete composition and pouring the second concrete composition into a concrete form. The use of a releaser system and the preparation of the first concrete composition are also disclosed.
Abstract: A dense mortar includes: (i) an ettringite binder, including calcium sulphate and a calcium aluminate mineral compound, (ii) at least one poly(alkylene oxide) comb polymer and, (iii) at least one organic resin, the organic resin accounting for less than 2% by weight of the mortar.
Type:
Grant
Filed:
October 22, 2004
Date of Patent:
September 22, 2009
Assignee:
Kerneos
Inventors:
Loris Amathieu, Bruno Touzo, Lionel Raynaud, Dina Gauthier
Abstract: The invention relates to a setting accelerator for a composition comprising Portland cement, in the form of a slurry comprising at least one calcium aluminate, 0.5 4%, preferably 0.6 2.3% of an aluminous cement setting inhibitor by weight in relation to the overall weight of the calcium alumnate, and an anti-sedimentation agent.
Type:
Grant
Filed:
December 24, 2003
Date of Patent:
February 5, 2008
Assignee:
Kerneos
Inventors:
Dominique Guinot, Eric Charpentier, Eric Frier
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