US 2004/0168611 A1 · Composition for running surface layer or capping layer

Abstract

The invention concerns a composition for producing a running surface layer or capping layer, in particular for roads or industrial floors. The composition includes a non-modified bitumen emulsion, a hydraulic binder, aggregates and optionally water. The composition has hydraulic binder content C1 between 12 wt. % and 30 wt. % relative to the total weight of the dry constituents of the composition; the ratio R1 of the sum of bitumen volumes and hydraulic binder over the volume of aggregates ranges is between 20% and 150%; and the non-modified bitumen emulsion is at least a non-ionic surfactant. A method for preparing the composition and its use for producing a running surface layer or capping layer is also disclosed.

Claims14

Dependent claims

A wearing course or capping layer comprising a concrete obtained by the hydraulic setting and hardening of a composition comprising an unmodified bitumen emulsion, a hydraulic binder, aggregates, said aggregates including granulates, and optionally water, characterized in that, as regards the composition:

its content C1 of hydraulic binder is between 12% and 30% by weight with respect to the weight of all of the dry constituents of the composition, excluding the bitumen;
the ratio R1 of the sum of the actual volumes of unmodified bitumen and of hydraulic binder to the actual volume of aggregates is between 20% and 150%;
and
the unmodified bitumen emulsion includes at least one nonionic surfactant.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/468,767Filed 4 Nov 2003

Priority

FR 01/0233221 Feb 2001

Published

2 Sep 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

E01C 7/358
Toppings or surface dressings; Methods of mixing, impregnating, or spreading them: with a combination of two or more binders according to groups…
C04B 28/02
Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic…
C08L 95/005
Compositions of bituminous materials, e.g. asphalt, tar, pitch: aqueous compositions, e.g. emulsions
C04B 2111/0075
Uses not provided for elsewhere in C04B2111/00: for road construction

Composition for running surface layer or capping layer

Life of this patent

Composition for running surface layer or capping layer

Life of this patent

Abstract

Claims14