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Dry construction composition wet-sprayable by means of a screw pump and containing a binder and a biosourced filler, and preparation and uses of such
The invention relates to a dry construction composition that is easily wet-sprayable by means of a screw pump, thus forming, after hardening, a durably mechanically resistant insulating material ( ë <0.1 W·m-1·K-1). Said composition contains: -A- at least one binder, itself including: -A1- at least one main binder containing lime and/or at least one alumina source and/or at least one calcium sulfate source, preferably at least one alumina source, -A2- at least one water-retaining agent, and -A3- preferably at least one surfactant; and -B- at least one biosourced filler, preferably of plant origin. The ratio B/A (liters/kg) is between 2 and 9. Said composition is intended to be mixed with water in a water/binder ratio -A- of no lower than 0.8. The invention also relates to the wet composition, to the preparation thereof, to the binder -A- taken in isolation, and to a method for application by spraying onto a horizontal or vertical substrate or by molding.
Dry construction composition wet-sprayable by means of a screw pump and containing a binder and a biosourced filler, and preparation and uses of such
The invention relates to a dry construction composition that is easily wet-sprayable by means of a screw pump, thus forming, after hardening, a durably mechanically resistant insulating material ( ë <0.1 W·m-1·K-1). Said composition contains: -A- at least one binder, itself including: -A1- at least one main binder containing lime and/or at least one alumina source and/or at least one calcium sulfate source, preferably at least one alumina source, -A2- at least one water-retaining agent, and -A3- preferably at least one surfactant; and -B- at least one biosourced filler, preferably of plant origin. The ratio B/A (liters/kg) is between 2 and 9. Said composition is intended to be mixed with water in a water/binder ratio -A- of no lower than 0.8. The invention also relates to the wet composition, to the preparation thereof, to the binder -A- taken in isolation, and to a method for application by spraying onto a horizontal or vertical substrate or by molding.
Dry construction composition wet-sprayable by means of a screw pump and containing a binder and a biosourced filler, and preparation and uses of such
MARCO CAPPELLARI (author) / LISA DESROSES (author) / ANNE DAUBRESSE (author)
2018-06-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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