Abstract: In a method for renovating a roadway, a first tack coat including a bitumen emulsion, a second coat of fibres and then a third surface coat that is a “clean” bitumen emulsion or includes an anhydrous asphalt binder, is spread by a spreading machine from bottom to top and overlaid on the milled or planed roadway. The fibres are sprayed onto the tack coat and the sprayed fibres having a maximum length of 12 cm, an asphalt mix being subsequently spread over the surface coat, the residual binder of the “clean” bitumen emulsion having a penetrability of less than 40 dmm and a ball-ring temperature greater than 50° C., the ‘clean’ bitumen emulsion including between 30% and 70% bitumen, between 30% and 70% water, and between 0.1% and 10% surfactants, stabilisers and/or additives, the percentages being by weight. The application also relates to a spreading machine.

Abstract: A functional device includes in succession: a first protective film on the front face of the device, with Young's modulus (YM) E1 and thermal dilatation coefficient (TDC) CTE1, a first exterior encapsulation film, with YM E2 and TDC CTE2, an interior encapsulation film, with YM E3 and TDC CTE3, a second exterior encapsulation film, with YM E4 and TDC CTE4, a second plate on the rear face of the device, with YM E5 and TDC CTE5, E1 and E5 being similar or identical, E2 and E4 being similar or identical, E1>E2 and E4<E5, CTE1 and CTE5 being similar or identical, CTE2 and CTE4 being similar or identical, CTE1<CTE2 and CTE4>CTE5, and one film of the first exterior encapsulation film, the interior encapsulation film and the second exterior encapsulation film encapsulating the active elements; and method for producing a functional traversable surface.

Abstract: Disclosed is a draining composition for a light-traffic road pavement, including: (a) a first granular layer having a percentage of communicating voids ranging 25-50%, including a binder and a granular mixture of which at least 80% by weight, relative to the total weight of the granular mixture, has a granular size distribution range 4-20 mm, the layer having a thickness suitable for the pavement's mechanical strength; (b) a second granular layer having main lower and upper surfaces, the main lower surface resting directly on the first granular matrix and the main upper surface in direct contact with the air, the second granular layer being a granular mixture not bound by a binder and of which at least 80% by weight, relative to the total weight of the granular mixture, has a granular size distribution range 2-14 mm, the second granular layer having a thickness appropriate for water accumulation.

Abstract: Disclosed is an illuminating panel, in particular integrated into a traversable surface, including, in succession, a first protective film arranged on the front face of the device, a first exterior encapsulating film, an interior encapsulating film, a second exterior encapsulating film, and a second protective film arranged on the rear face of the device, one of the films chosen from among the first exterior encapsulating film, the interior encapsulating film and the second exterior encapsulating film coating at least one active element suitable for emitting light. Also disclosed is a method for producing such a panel and a functional traversable surface with such a panel.

Abstract: The invention relates to a signaling system, comprising a crossable zone intended to be positioned on a highway and comprising a signaling marking forming a plurality of signaling strips, said system being characterized in that: The crossable zone comprises a plurality of photovoltaic zones (ZP) comprising photovoltaic cells (Cp) intended to capture light energy in order to convert it into electrical energy; The crossable zone comprises a plurality of signaling zones (ZS), of non-zero areas, so as to form said plurality of signaling strips, each signaling zone (ZS) incorporating electrical lighting means; A control system for controlling said electrical lighting means; At least one storage unit (14) for storing the electrical energy generated by each photovoltaic zone (ZP) and connected to said electrical lighting means in order to supply them with electrical energy.

Abstract: A photovoltaic structure, or a photovoltaic structure for a roadway suitable for circulation of pedestrians and vehicles, including: at least one photovoltaic cell; and a non-opaque coating covering at least a front face of the photovoltaic cell and having an outer surface which is macrotextured and microtextured irregularly, with a mean texture depth MTD, measured according to the norm NF EN 13036-1, of between 0.2 mm and 3 mm, and a polishing resistance value PRV, according to the norm NF EN 13043, of at least PRV44, or PRV50, or PRV53.

Abstract: A functionalized infrastructure including a bottom layer including a zone to be covered, the infrastructure including: n covering slabs arranged juxtaposed in order to pave the surface to be covered, each covering slab having a rank i, with i ranging from 1 to n and n being greater than or equal to 2 and including a coverage surface positioned to cover a part of the zone and at least one electrical functionalization assembly, the n covering slabs including at least one covering slab of a first type having a coverage surface of a first form and a covering slab of a second type having a coverage surface of a second form, each covering slab including an electrical connection block arranged on the slab so as to separate each slab of rank i from a slab of rank i+1 by a pitch (P) that is constant.

Abstract: The invention relates to a one-piece light signalling slab (2) comprising a structure with a plurality of layers that are superposed and attached together, said structure comprising: A first transparent or translucent layer (200) forming a front face of said slab; A light assembly (201) comprising a plurality of light emitting diodes (Ds) electrically connected together; An assembly (202a, 202b) encapsulating said plurality of light emitting diodes; A second layer (203) forming a rear face of said plate and being made up of a composite polymer/fibreglass material; Said encapsulating assembly being positioned between said first layer (200) and said second layer (203).

Abstract: An apparatus for in-place recycling of materials that form part of a roadway pavement with agglomerated aggregates in a bituminous composition, includes a load-bearing structure suitable for driving on the pavement in a direction of travel and carries, from the front to the rear in the direction of travel, a transverse milling machine for milling the pavement to a defined depth and width to produce milling debris, a mixing device for mixing the milling debris with a binding composition, and a spreading sub-assembly for distributing the milling debris/binding composition mixture across the milled pavement. The apparatus further includes a crusher with blades, between the milling machine and the mixing device, open on the bottom, for crushing the milling debris. In one embodiment, the crusher and the mixing device are located in a single unit. The application also relates to a crusher for milling debris from roadway pavements.

Abstract: Disclosed is a biosourced polymer obtained by dual chemical functionalization of chitosan, usable for catalytic carbonation of cyclic ethers by carbon dioxide, and a binder composition for creating layers and/or coatings for road construction and/or civil engineering, marking materials, or sealing or insulation materials. The composition contains a polyhydroxyurethane polymer binder resulting from the reaction of at least one polyamine with at least one polycyclocarbonate. The polycyclocarbonate was obtained by carbonating a (cyclic) poly(ether) with carbon dioxide catalyzed by the biosourced polymer.

Abstract: A photovoltaic structure, or a photovoltaic structure for a roadway suitable for circulation of pedestrians and vehicles, including: at least one photovoltaic cell; and a non-opaque coating covering at least a front face of the photovoltaic cell and having an outer surface which is macrotextured and microtextured irregularly, with a mean texture depth MTD, measured according to the norm NF EN 13036-1, of between 0.2 mm and 3 mm, and a polishing resistance value PRV, according to the norm NF EN 13043, of at least PRV44, or PRV50, or PRV53.

Abstract: A photovoltaic structure, or a photovoltaic structure for a roadway suitable for circulation of pedestrians and vehicles, including: at least one photovoltaic cell; and a non-opaque coating covering at least a front face of the photovoltaic cell and having an outer surface which is macrotextured and microtextured irregularly, with a mean texture depth MTD, measured according to the norm NF EN 13036-1, of between 0.2 mm and 3 mm, and a polishing resistance value PRV, according to the norm NF EN 13043, of at least PRV44, or PRV50, or PRV53.

Abstract: A photovoltaic structure including an assembly of plural photovoltaic cells arranged side by side and electrically connected together, and an assembly encapsulating the plural photovoltaic cells. The encapsulating assembly and assembly of plural photovoltaic cells is situated between first and second layers, and a fixation layer situated between a circulable zone and a photovoltaic module, enabling adherence of the photovoltaic module to the circulable zone. The first layer includes at least one transparent polymer material and plural panels independent of each other, each panel situated facing at least one photovoltaic cell, to form a discontinuous front face of the photovoltaic module, and rigidity of the encapsulating assembly is defined by a Young's modulus of the encapsulation material greater than or equal to 75 MPa at ambient temperature and a thickness of the encapsulating assembly is between 0.4 and 1 mm.

Abstract: A method for characterizing k mechanical parameters of a pavement formed by a stack in a direction Z of N layers, including: a) applying a load to the pavement to deform the pavement; b) in response, measuring deformation of the pavement at various points with displacement sensors situated at each of the points; c) determining the k parameters on the basis of the measurements of the various sensors. The measuring b) is carried out by at least k sensors buried inside the pavement and distributed in at least two non-parallel directions X and Y perpendicular to the direction Z, and the c) determining of the k parameters is obtained on the basis of known boundary conditions on lateral edges of the pavement.

Abstract: A photovoltaic structure, or a photovoltaic structure for a roadway suitable for circulation of pedestrians and vehicles, including: at least one photovoltaic cell; and a non-opaque coating covering at least a front face of the photovoltaic cell and having an outer surface which is macrotextured and microtextured irregularly, with a mean texture depth MTD, measured according to the norm NF EN 13036-1, of between 0.2 mm and 3 mm, and a polishing resistance value PRV, according to the norm NF EN 13043, of at least PRV44, or PRV50, or PRV53.

Abstract: A method for recycling or renovating old pavements, wherein a rejuvenating binder is used including at least one compound based on fatty substances of natural origin including hydrocarbon fatty chains, these fatty substances of natural origin having undergone at least one chemical functionalization reaction through which at least one oxygenated functional group has been introduced. The rejuvenating binders and rejuvenating binder emulsions especially suitable to the method, and asphalt mixes based on regenerated reclaimed asphalt pavement are also disclosed.

Abstract: The present invention generally relates to asphalt mixes with a high content of recycled bituminous materials including a binder modified with glycerol. The present invention further relates to a method for preparing the asphalt mixes and to the use of the asphalt mixes as materials for making courses and/or surfacing for road construction and/or civil engineering. The present invention also relates to the use of glycerol as a correcting agent for the workability and/or of the thermal cracking resistance and/or of the rutting resistance of an asphalt mix with a high content of recycled bituminous materials.

Abstract: A method for recycling or renovating old pavements, wherein a rejuvenating binder is used including at least one compound based on fatty substances of natural origin including hydrocarbon fatty chains, these fatty substances of natural origin having undergone at least one chemical functionalization reaction through which at least one oxygenated functional group has been introduced. The rejuvenating binders and rejuvenating binder emulsions especially suitable to the method, and asphalt mixes based on regenerated reclaimed asphalt pavement are also disclosed.

Abstract: The invention relates to application of solvent(s) to a product including at least one binder, wherein the product is a paint or coating formulation and the solvent is a compound of renewable vegetable origin, notably agricultural origin. It also relates to a paint or coating including at least one binder and one solvent, wherein the solvent is of renewable vegetable origin. Formulations are given.

Abstract: A method of making coatings, marking products and/or sealing products from a starting material including aggregate, includes the step of adding to a starting material a binder including at least one resin based on polymerized hydroxyacid derivatives as a non bituminous binder, as a non bituminous binder, the resin(s) being selected from: a) organic resins derived from an oil or a fat having a natural origin including monoglycerides and/or diglycerides, esterified with a poly(hydroxy acid), b) organic resins corresponding to lactic polyacid and polyol esters and/or mono- or polyhydroxylated polyacid esters, c) organic resins based on lactic polyacid or lactic polyacid derivatives such as corresponding esters thereof.