Granular materials and method of soil reinforcement
AssigneeOrgel
InventorsJean-Louis Fage, Claude Choudin, Jean-Baptiste Rieunier, Jean-Marc Letalenet
Life of this patent
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Abstract
A material intended to form grounds, layers or sublayers of terrains or of carriageways. It contains an ungraded granulated material such as sand or pulverulent materials of industrial origin to which bundles of glass filaments are added in a proportion from 0.01 to 0.1%.
Claims19
Granular material intended for the production of ground layers, terrain or carriageway layers or sublayers and including a mix based on inorganic or organic powders or granulates and on fibres, wherein the fibres are inorganic fibres, the fibres are filaments in the form of bundles, each bundle having a length less than 100 mm and consisting of at least 40 filaments, each filament having an individual diameter lying between 5 and 25 .mu.m.
Device for making up a mix of powder or granulates and of textile glass fibres intended to form grounds, terrain or carriageway layers or sublayers, including a continuous-yarn cutting machine located in the vicinity of a conveyor system for distributing cut yarns onto the conveyor which transports the powder or granulates.
Method for restoring a carriageway layer with sand-grit treated with hydraulic binders, comprising the following steps:
- rotary cutting and then extracting the layer;
- transferring into a mixer and mixing the sand-grit with the binder and filament bundles of a length of less than 100 mm and consisting of at least 40 filaments, each filament having an individual diameter lying between 5 and 25 .mu.m, and having been obtained by cutting at least one roving of yarns, to produce a mix;
- and
- putting the mix into place on the carriageway.
Dependencies are inferred from the claim text.