COMPOSITION BITUMINEUSE, SON PROCEDE DE FABRICATION ET SON UTILISATION EN TECHNIQUE ROUTIERE

• Main Authors: HURTADO AZNAR JAVIER, HERRERO LAETITIA, UGUET CANAL NURIA, LESUEUR DIDIER
• Format: Patent
• Language: French
• Published: 04.05.2012
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BUILDING; CEILINGS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; CORRECTING FLUIDS; DYES; FILLING PASTES; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; GENERAL PROCESSES OF COMPOUNDING; INKS; INSULATION OR OTHER PROTECTION OF BUILDINGS; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; ROOFS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WALLS, e.g. PARTITIONS; WOODSTAINS; WORKING-UP

The invention concerns a fabrication method of a bituminous emulsion, consisting in the use of a primary bitumen emulsion, possibly diluted, characterized by a median diameter of less than 2 μm, as aqueous phase of a secondary bitumen emulsion characterized by a median diameter of more than 2 μm, wherein the final emulsion thus obtained is characterized by a bitumen content of 50% to 95% by weight, a STV viscosity at 40 C through the 4 mm orifice of less than 300 s and a settling tendency of less than 10% as determined by means of assay EN 12847.