Other

Rhodia Chimie

Innophos, Inc.

Lafarge

Eurovia

Bouygues Travaux Publics

Rhodia Polyamides Intermediates

Rhodia Operations

Bouygues

Gilles Orange

Dominique Dupuis

Marcel H Cheyrezy

Daniel Joubert

Evelyne Prat

Laurent Frouin

Jean-Francois Colombet

Jerome Dugat

Roland Durand

John Godber

Mouloud Behloul

Bernard Alain Clavaud

Didier Tupinier

Didier Lesueur

Pascal Casanova

Jean-Pierre Marchand

Dominique Lemos

J&eacute;r&ocirc;me Dugat

Sandra Boivin

Laurent Froin

Cyrille Canac

Nathalie Riche

Juan José Potti

Yves Bomal

André Pascal Casanova

Jean-François Estur

Marcel Cheyrezy

Jérôme Dugat

The present invention relates especially to a composition for manufacturing an article comprising one or more superposed layers each less than 5 centimeters thick, comprising a hydraulic binder and at least one compound chosen from an organic compound comprising at least two hydrophilic functions and a hydrophobic chain, and a polyamide oligomer. The use of these additives in the presence of hydraulic binder allows the manufacture of articles and coatings with good protection against water uptake, satisfactory water resistance and good mechanical properties such as breaking strength.

Hydraulic binder composition

The invention relates to a method for the production of a bituminous binder and a bituminous binder which can be obtained according to said method. The method for the preparation of the bituminous binder comprises a mixing stage of 0.05 5 wt. % acid, 0.5 25 wt. % rubber crumbs and 70 99.5 wt. % bitumen. The invention also relates to bituminous concretes comprising said binder and a method for the production and use thereof.

Bituminous binder and method for the production thereof

The invention concerns method for enhancing the physico-chemical properties of bitumen compositions and novel bitumen compositions with enhanced properties and their uses by mixing a functionalized amorphous silica made by combining amorphous silica with a coupling agent.

Method for enhancing the physico-chemical properties of bitumen compositions and novel bitumen compositions with enhanced properties and their uses

The subject of the present invention is a process for preparing a bituminous product, characterized in that a compound based on a phosphoric or polyphosphoric acid supported on a mineral oxide of high porosity is used. The subject of the invention is also the bituminous product that can be obtained by the above process, and its uses.

Bituminous product and process for preparing it

The invention concerns the use of organic fibers having a melting point lower than 300&#xb0; C., an average length l more than 1 mm and a diameter &#xd8; not more than 200 &#x3bc;m, in ultra high performance concrete for improving the concrete fire resistance, the amount of organic fibers being such that their volume ranges between 0.1 and 3% of the concrete volume after setting and the concrete having a compressive strength at 28 days of at least 120 Mpa, a bending strength of at least 20 Mpa, and a spread value in non-hardened state of at least 150 mm, the values being for a concrete preserved at 20&#xb0; C., the concrete consisting of a particularly hardened cement matrix wherein metal fibres are dispersed.

Fire-resistant high performance concrete composition

The invention concerns a novel phosphomagnesium mortar and the method for obtaining such a mortar. The mortar is a phosphomagnesium mortar comprising a phosphomagnesium binder containing a phosphorus compound and a magnesium compound, granular elements, and water in a E/L ratio less than 0.38, E representing the amount of water and L the amount of magnesium compound, and whereof the fluidity is at least 150%.

Phosphomagnesium mortar and method for obtaining same

A concrete includes organic fibers, dispersed in a cement matrix. The cement matrix includes elements having predetermined particle sizes. The organic fibers have predetermined lengths and diameters. The behavior of the concrete is improved both with respect to the occurrence of minute cracks and the propagation of large cracks as a result of a synergistic effect between the cement matrix and the organic fibers.

Concrete comprising organic fibres dispersed in a cement matrix, concrete cement matrix and premixes

The invention concerns a concrete obtained by mixing with water, cement, granular elements, elements with puzzolanic reaction, constituents capable of improving the toughness of the matrix, metal fibers and at least a dispersing agent, in specified conditions and proportions. Said concrete has improved properties compared to prior art concrete comprising metal fibers.

Metal fibre concrete, cementitious matrix and pre-mixes for preparing matrix and concrete

Phosphomagnesium cement compound comprising a polymer in particle form

Growing community of inventors

Soisy-sous-Montmorency, France

Gilles Orange