MXPA00010716A - Integrated retroreflective marking materials - Google Patents

Abstract

A dry formulation for an integrated marking material for concrete and asphalt application comprises a cementitious mixture including a hydraulic or cementitious binder, a redispersible polymeric cement modifier, a retroreflective agent filler, and optionally, a reflective agent filler. The formulation preferably includes a pigment, aggregate, a dispersant,a plasticizer, and/or a water reducer. The formulation optionally includes at least one admixture selected from an accelerator, an air entrainer, a defoamer, fibers, an inert filler, a natural clay, a pozzolanic filler, a retarder, a rheology modifier, a shrinkage compensating agent, a synthetic clay, a suspending agent, and a thickening agent. The marking material, when applied, has broadcast onto and embedded into its surface, additional retroreflective agents.

Description

TECHNICAL FIELD SIGNALING MATERIALS TECHNICAL FIELD The present invention relates to integrated retroflective marking materials for recent or hardened concrete and asphalt surfaces, such as roadways, roads, and the like. The present invention relates in particular to formulations of cementitious material containing a redispersible polymer and retroflective / reflective materials. BACKGROUND OF THE INVENTION In general, the marking of concrete and asphalt to make the stripes of the rails or to carry out preventive signs, is usually done by painting stripes or applying preformed tapes of polymeric material. The disadvantages of these methods are that they are temporary and require frequent periodic reapplications. To achieve a longer lasting product, various signaling methods include the use of a system consisting of a system consisting of two components based on epoxy resins, thermoplastics, polyester, methyl methacrylate or polyurethane. Most of these products are solvent-based or reactive resins that require special handling, storage, mixing, application and distribution procedures. With solvent-based paint products, including the classic one-component traffic paint, the release of solvent into the environment after each application presents certain hazards to the environment as well as to workers and operators in the environment. point of work. In certain situations, it is convenient that the signs are retroreflective to improve visibility at night. To achieve this, several techniques have been proposed. According to one of them, preformed reflector devices are partially embedded in the roadway at regular intervals. The exposed part of the reflector soon acquires a deposit of dirt or silt that reduces visibility. The exposed part of said reflector can be damaged and wear out with repeated contact with the wheels of the vehicles and with the cleaning equipment or snowploughs. Another technique is to previously mold a concrete panel that has reflective or retroreflective materials embedded in its surface and then locate or fix the panel on the surface of the road or demarcations of the road. This requires prefabrication by order of structures and storage, transport and placement of heavy items. An on-road road marking technique comprises spreading a quantity of reflective or retroreflective materials on the surface of a paint coating applied to the surface of the road, optionally including a second paint coating to immobilize the particles. Similarly, the technique of spreading reflective glass beads on a polymeric bonding coating (such as epoxy) has been proposed on the road, followed by the application of a weather resistant top coat (such as a urethane). Again, these roadway signs are temporary and require frequent reapplications. A variant of the signaling tape technique has been proposed, according to which several layers of polymeric materials are bonded by means of adhesive to the tape, at least one of said layers carrying transparent microspheres or other reflective elements. According to a related proposal, a single layer of polymeric tape carries embedded ceramic spheroids, to be used in road markings. These belts are also of a temporary nature, wear rapidly as a result of friction with the wheels of vehicles or break off from the road due to such friction or poor adherence to the surface of the roadway. Since these tapes are polymeric, they have thermal properties different from those of the substrate in which they are applied. In periods of heatFor example, preformed tapes tend to soften, pick up debris, crack and delaminate. Likewise, said tapes may require an epoxy bonding agent to improve adhesion to the substrate. This complicates the application to the pavement and introduces another more thermally different material into the system. Australian Patent 667210 proposes a surface coating composition for road marking, supplied to the working point in two parts, one of which is a dry mixture and the other is a liquid mixture. The dry blend includes white portland cement, titanium dioxide, refractory cement and garnet-shaped aggregate of a size of 150 to 600 μM or garnet of a size of 250 to 600 μM and glass spheres of a size of 150 to 600 μM . The liquid mixture includes polymeric acrylic cement modifier, acrylate / styrene copolymer cement modifier, foam controlling agent, non-retardant mortar, plasticizer and water. The two components are mixed in situ and applied to the road in the form of a paste. A stream of glass beads of a size of 0.85 mm to 1.18 mm (850 to 1180 μM) is sprayed onto the paste to partially embed them and provide reflectivity. There are several drawbacks with the signaling material described in the Austalian Patent. In the first place, the fact that the signaling material consists of a two-phase system introduces variability and the possibility of an inadequate dosage during the in situ preparation of the paste to be applied to the roadway. The liquid portion, being susceptible to an unsafe level of loading and being susceptible to spillage, constitutes a concern for the environmental and structural integrity of the work point. The crews of the road operators must be relied upon to correctly measure and thoroughly mix the liquid and dry portions of the system, even if they can be sure that the correct loading levels of ingredients in the liquid portion are present. Even if the liquid portion is previously provided, it must be mixed with more water to achieve the desired working capacity. If the correct amount of water is not added, both the plastic and hardened properties of the finished product will be compromised. If the consistency of the signaling material is too wet or too dry, the use of a liquid polymer as the main component does not allow adjustment of the dosage without affecting the behavior of the finished product. The proportion of polymer in the signaling material described in the Australian Patent is very high, giving rise to problems in terms of the robustness and abrasion resistance of the resulting product. The high level of polymer also causes retardation of setting, as evidenced by the use of a stream of hot air to accelerate the setting time and embed the glass beads. The hot air can cause a rapid drying of the surface and a hydration for an integrated signaling material to be applied in concrete or asphalt and that avoids the problem derived from the incorporation of a large proportion of polymer in cementitious materials. A further object of the present invention is to provide a dry formulation for an integrated signaling material for application in both fresh and hardened concrete and asphalt and which can be formulated to meet the various application and performance demands of the product. Another object of the present invention is to provide a dry formulation for an integrated signaling material to be applied to concrete or asphalt and having a high initial retroreflectivity when tested in accordance with ASTM standards such as ASTM D-4061). A further object of the present invention is to provide a dry formulation for an integrated signaling material to be applied to concrete or asphalt and which retains a high retroreflectivity even after the wear of the exposed surface occurs. Another object of the present invention is to provide a dry formulation for an integrated signaling material to be applied to concrete or asphalt and having a high resistance to breakage by compression and which is resistant to abrasion. SUMMARY OF THE INVENTION Therefore, the present invention provides a dry formulation for an integrated retroreflective signaling material for application to concrete or asphalt and comprising a cementitious mixture including a hydraulic or cementitious binder, a modifier for redispersible polymer cement, a retroreflective agent filler and preferably a load of reflecting agent. The present invention further provides a dry formulation for an integrated retroreflective signaling material for application to concrete or asphalt, wherein the polymeric cement modifier is a redispersible, dry polymer resin selected from the group consisting of acrylic resins, ethylene-acetate vinyl, styrene-acrylic, styrene-butadiene, polyvinyl acetate, vinyl versatate, vinyl acetate and mixtures, copolymers or terpolymers of the foregoing.

The present invention further provides a dry formulation for a signaling material to be applied to concrete or asphalt, wherein the retroreflective agent filler is selected from the group consisting of glass beads, glass bubbles, glass flakes, glass spheres, spheres ceramics, plastic beads and mixtures of the above, wherein the retroreflective filler has an average particle size of at least about 600 μM. In a preferred embodiment, the cementitious signage material is formulated to include both reflective and reflective retroreflective agents on the surface, to ensure visibility as the surface wears out over time. In a preferred embodiment, the dry cementitious formulation includes at least one component chosen from an inorganic pigment, an organic pigment or an inorganic / organic hybrid pigment. The dry formulation of the present invention can be applied to a pavement, road or the like by mixing it with water in situ and applying it as a thin coating on the surface or as a thicker top layer that becomes integral with the surface of the roadway. The signaling material, when applied to the roadway or pavement, preferably contains other retroreflective agents spread and embedded in its surface. The present invention thus provides a dry formulation for a cementitious signaling material to be applied to concrete or asphalt, which material has been compatibilized to accept retroreflective agents, which comprises a cementitious mixture that includes a hydraulic or cementitious binder and a polymeric modifier. redispersible cement. The present invention further provides a cementitious signaling material for application to concrete or asphalt, prepared substantially in situ from a mixture of water with a dry formulation comprising a cementitious mixture including a hydraulic or cementitious binder and a redispersible polymeric modifier of the cement, said signaling material having retroreflective agents at least partially embedded in its surface.

The present invention further provides an integrated signaling material to be applied to pavements and prepared in situ from a water mixture with a dry formulation comprising a cementitious mixture that includes a hydraulic or cementitious binder, a redispersible polymeric cement modifier, a charge of retroreflective agent and preferably a load of reflecting agent. The present invention also provides a process for signaling a concrete or asphalt surface by application thereto of a cementitious signaling material or an integrated signaling material as described above. In one embodiment, the integrated signaling material of the present invention comprises a top layer of at least 3.2 mm in average thickness, which preferably further comprises scattered and partially embedded retroreflective agent particles having a size greater than at least 600. μM approximately, preferably at least 850 μM approximately, on the surface of the upper layer. In another embodiment, the integrated signaling material of the present invention comprises a coating with an average thickness of less than about 6.4 mm and which further preferably comprises scattered and at least partially recessed retroreflective particles having a larger size than less 600 μM, preferably at least about 850 μM, on the surface of the coating. In a preferred embodiment, the cementitious signaling material is applied in a recessed or depressed groove so as to constitute an integral part of the substrate and to prolong its service life. In a preferred embodiment, the integrated signaling material includes at least one pigment chosen from an inorganic pigment, an organic pigment or an inorganic / organic hybrid pigment. In an alternative embodiment, the present invention provides a dry formulation for an integrated retroreflective signaling material for application to concrete or asphalt, comprising a mixture including a hydraulic binder of at least one cement selected from a magnesium phosphate cement or a magnesium-potassium phosphate cement, a retroreflective agent filler and, optionally, a filler of reflecting agent, as well as an integrated retroreflective signaling material for application to pavements, prepared substantially in situ from a mixture of water with said formulation dry The present invention also provides an integrated retroreflective signaling material for applying to concrete or asphalt comprising a surface including a hydraulic binder of at least one cement selected from a magnesium phosphate cement and a magnesium-potassium phosphate cement, and having, on the surface, scattered and at least partially recessed retroreflective agent particles of a size greater than at least about 600 μM. DETAILED DESCRIPTION OF THE INVENTION In order to provide a signaling material to be applied to pavements such as, for example, roadways and roads, floors such as store floors, verges, sidewalks, toll plazas, restriction spaces, parking surfaces , parking garages and parking floors, airport runways and the like, which is simple to apply and which at the same time lasts practically during the service life of the pavement surface, it was necessary to develop a material that could be easily prepared in situ and that had uniform properties during the entire period of application. In addition, the material should also exhibit structural integrity and robustness substantially comparable to those of the pavement in which it is to be applied and at the same time provide visibility both during the day and during the night. The material should preferably exhibit a retroreflectivity to the headlights of the vehicles substantially comparable to that of the existing temporary signaling materials, such as paints and reflective tapes. Said signaling material has now been developed, particularly in the form of a dry formulation easy to prepare, store and transport, comprising a cementitious mixture that includes a hydraulic or cementitious binder and a redispersible dry or powdered polymeric modifier for the cement. In a preferred embodiment, the cement mixture includes a retroreflective agent filler and preferably a filler agent filler. In the dry formulation, the hydraulic or cementitious binder is a cementitious cement with the retroreflective and reflective fillers that are used in the signaling material, but it should not be present in quantities that unfavorably decrease the strength of the concrete material. resulting. Thus, the resin is preferably present in an amount of about 0.2 to 10% by weight of the dry formulation, preferably about 0.5 to about 8% by weight of the dry formulation when the binder is portland cement, and more preferably from 2 to 6% by weight approximately. The relatively low percentage of polymeric modifier of the cement, necessary for the dry formulation according to the present invention, avoids the problems derived from the incorporation of a large proportion of polymer in cementitious materials. When the hydraulic binder is a fast-setting cement, such as magnesium phosphate or magnesium-potassium phosphate, the polymeric cement modifier is preferably used in the amount of about 0.2 to 2% by weight of the dry formulation. It has been proven that, in contrast to formulations based on Portland cement binder, the formulations based on magnesium phosphate binders or magnesium-potassium phosphate which have an acceptable behavior, can contain, in built-in or embedded form, loads of retroreflective agents and optionally loads of reflective agents, without the polymeric modifier of the cement or at least with lower levels of the polymer component. As indicated above, the polymeric resin should be dry, such as in powder form, in order to facilitate handling, dosing and mixing in the cementitious formulation and to avoid separation and formation of pockets of low strength materials in the top coat or top coat product. The dry formulation may contain other usual components of the cementitious mixtures, such as aggregates, including fine aggregates or sand, and preferably also coarse aggregates, such as silica, quartz, ground marble in rounded form, glass spheres, granite, limestone, calcite, feldspar, alluvial sands, other resistant aggregates, mixtures of aggregates and the like. The dry formulation can include various additives useful in cementitious mixtures, such as a dispersant, a plasticizer or a water reducer and / or one or more ludraulic additives, preferably a portland cement such as that used for the construction of roads, bridges or tracks. of airports and the like, or a fast-setting cementitious binder such as a magnesium phosphate or magnesium-potassium phosphate cement, or any other suitable hydraulic binder. Portland cements suitable for use as a cementitious binder include portland cements of Type I, Type p, Type m and Type V. For specific signaling applications, a white Portland cement or a gray cement binder may be used. Other hydraulic or cementitious binders useful in the present invention include calcium sulfoaluminate (CSA) cements, such as K-type cement, DENKA cement (registered trademark), ROCKFAST cement (registered trademark) or crystalline modified portland cement ULTEVÍAX (registered trademark) and calcium aluminate cement such as calcium aluminate cement SECAR (registered trademark), high alumina cements, active fly ash, active clay and slag cements. An important ingredient in the dry formulation for the integrated cementitious signage material is a redispersible polymeric cement modifier, especially a dry polymeric resin. By the term "redispersible polymer" is meant a latex of solid quality, such as that produced by spray drying of a latex emulsion. When water is added to the dry polymer, it is redispersed again to a latex emulsion. Examples of polymers which can be used as redispersible dry polymers include, but are not limited to, acrylic resins, ethylene-vinyl acetate, styrene-acrylic, styrene-butadiene, polyvinyl acetate, vinyl versatate, vinyl acetate and mixtures, copolymers or terpolymers of these resins. Preferably, the redispersible polymeric modifier for the cement is a dry acrylic resin. Examples of preferred redispersible polymer resins for use in the dry formulation of the permanent signaling material include, but are not limited to, DRYCRYL acrylic polymer resin (trademark) DP2903 or DP2904 supplied by Rohm & amp;; Haas and flexible styrene-acrylate polymer resin ACRONAL (registered trademark) S 420P supplied by BASF. The polymeric cement modifier is useful for compatibilizing the common material as needed for a particular application and environment, such as an accelerator, an air entrainer, a defoamer, fibers, an inert filler, a natural clay, a pozzolanic clay , a retarder, a rheology modifier, such as a water soluble polymer, a shrinkage compensating agent, a synthetic clay, a suspending agent, a thickening agent and the like and mixtures of the foregoing. Suitable examples of these additives are already well known to those skilled in the art and representative examples are offered in US Patent No. 5,728,209, incorporated herein by reference. For strength purposes, the dry formulation for the signaling material may include a pozzolanic filler such as fly ash, kaolin, silica fume, blast furnace slag and the like and mixtures of such fillers. Other inert fillers, such as calcium carbonate, ceramic microspheres, mica, talc, silica flour, diatomaceous earth, rice husk ash and the like and mixtures of said fillers may be included. In order for the signaling material to provide visibility at night or in other low light conditions, the dry formulation preferably contains a charge of retroreflective agent, such as glass beads, glass bubbles, glass spheres, ceramic spheres, beads of plastic and the like and mixtures of these retroreflective agents, to be incorporated in the matrix of the cementitious materials used as top layer or coating. To provide retroreflective properties over the entire life of the pavement in which the integrated signaling material is applied, the built-in or integral retroreflective agent has an average particle size of at least about 600 μM, preferably at least 850 μM. approximately and greater. The superior size of the retroreflective agent is limited only by the availability and ease of incorporation and mixing with the other components of the cementitious formulation. Although it is preferable to introduce the charges of retroreflective agents in the dry formulation in a first stage, it is within the scope of the invention to be able to introduce the retroreflective agents, with a mixing operation, into the dry mixture of the cementitious binder, polymeric modifier of the cement, etc., at any time prior to the addition of the liquid to the formulation. This can be done, for example, by combining the previously provided content of a bag of the retroreflective agent and the contents of a container of the cementitious binder mixture at the working point, before adding the aqueous hydration liquid. To achieve an improved dispersion capacity in the dry formulation, the retroreflective agent filler preferably has a surface treatment or an antistatic agent coating impervious to moisture, examples of which are, but not limited to, silicones, modified silicones such as alkylhydroxy silicones, carbinoles, silanols and the like. To achieve improved adhesion in the cement mixture after hydration and drying, the retroreflective agent preferably has a surface treatment or coating of an adhesion promoter. Examples of such adhesion promoters include, but are not limited to, modified silanes and silanes, such as those containing functionalities selected from amino, vinyl, acrylic, alkoxy, alkyl, (meth) acryloxy, glycidoxy, methacryl, epoxy, acetoxy. , methoxy, ethoxy, arylalkoxy, chloro, mercapto, carboxyamide and the like. Retroreflectivity refers to the reflection process in which incident rays and reflected rays are antiparallel. For example, the beam of light from the headlight of a car or airplane that falls on the retroreflective agent is reflected back to the source, then being visible by the driver or pilot. Not all reflective materials and not all glass spheres are retroreflective. For glass spheres and the like, the minimum size to promote optimum visibility at night both dry and wet is about 600 μM. Therefore, glass spheres that have previously been incorporated in concrete as inert fillers, have not inherently imparted retroreflectivity in concrete. To achieve optimum retroreflectivity, the retroreflective agent filler, such as glass beads, preferably has a refractive index greater than about 1.5, preferably about 1.5 to about 2.1. In order to improve the visibility of the signaling material, the dry formulation optionally contains reflective agents as a filler to reflect light from other sources, such as smaller glass beads (less than 600 μM in diameter), glass bubbles, glass flakes, glass spheres, ceramic spheres, plastic beads and mixtures of the above. To be able to function as lanes of tracks or tracks or as hazard flags or other special signaling areas, such as when it is desired to delineate, accent or signal a point / zone, the formulation for the integrated signaling material according to the present invention can include at least one pigment. For example, titanium dioxide can be used to get white stripes and Hansa yellow can be used to get yellow stripes normally used on roads. A black pigment such as black iron oxide can be employed to provide contrast on a white or colored stripe located adjacently or superimposed. For other purposes, the formulation may contain a pigment chosen from the classes of fluorescent metal oxide pigments and phosphorescent metal oxide pigments, to create an "illumination in the dark" effect. Thus, the dry formulation may contain an inorganic pigment, an organic pigment or an inorganic / organic hybrid pigment, including any suitable dye or dye. Such pigments include, but are not limited to, carbon black, Hansa yellow (2 - [(4-methoxy-2-nitrophenyl) azo] -N- (2-methoxyphenyl) -3-oxobutanamide), iron oxide, dioxide titanium, zinc sulphate, zinc sulphides, modified zinc sulphide LumiNova (registered trademark) (United Minerals Corp.), zinc sulphide / barium sulfate Lithopone, zinc oxide, titanates, nickel-antimony titanates, phthalocyanines, Spinels and mixed phase oxides and mixtures thereof. The signaling material of the present invention can therefore be adapted in color as well as in consistency to satisfy special aesthetic and design needs. The dry formulation generally contains the components described above in the following ranges, indicated in percentages by weight based on the total weight of said components: binder, approximately 15 to 50%; redispersible polymer, about 0.2 to 10%; retroreflective agent, approximately 10 to 75%; reflective agent, about 5 to 35%; aggregates, approximately 10 to 70%; pigment, up to about 10%.

The relative proportions of the components vary according to the requirements of a particular application, for example, as a thick topcoat or as a thin coating, for fresh or hardened concrete or asphalt, and in accordance with the end-use behavior characteristics desired in terms of robustness and resistance. The integrated signaling material for pavement applications, according to the present invention, is prepared in situ from a mixture of water with the dry formulation described above. The measurement of the mixture of dry formulation and the amount of water is easier and more accurate than the calculation of a solution or dispersion containing solids of uncertain concentration, together with the need to mix it in a compatible and uniform way . As is logical, it is within the scope of the invention to be able to include components in solution in water that are not easily separated from phase or that are critical in terms of the absolute percentage with respect to the dry formulation mixture, such as dispersants, plasticizers, reducers of water, accelerators, air entrainers, defoamers, retarders, rheology modifiers, shrinkage compensating agents, suspending agents, thickening agents and the like. The water-cement ratio for the signaling material is chosen according to factors known in the art for the particular binder used, generally ranging from about 0.22 to 0.65. Therefore, the signaling material of the present invention is advantageous since it can be stored and transported as a dry formulation and can be mixed with water in situ, to achieve an easy application in recent or hardened concrete or asphalt pavements, such as a road or a road. The area to be marked can be prepared in several ways. According to one technique, the signaling material can be applied as a top layer comprising a mixture of water and the dry formulation to a newly deposited concrete surface, preferably in a slight depression, compared to the contiguous surface of the pavement, so that the signaling material fills the depression to form an area that has a surface approximately level or slightly elevated with respect to the adjacent pavement.

According to another technique, the upper layer of signaling material is applied to a cured or hardened pavement surface and which has been prepared with a depression to receive the upper layer, or where the depression has been subsequently formed or cut. According to another technique, a coating comprising a mixture of water and the dry formulation is applied to a pavement, such as an asphalt surface or a hardened or pre-cast concrete surface, without having to first prepare a ridge or depression to receive the signaling material. The signaling material of the present invention, when applied as a thick top layer according to the techniques generally described above, is of an average thickness of at least about 3.2 mm and is preferably 6.4 mm or more. . The signaling material of the present invention, when applied as a thin coating according to the techniques generally described above, is usually of an average thickness of less than about 6.4 mm, preferably less than about 3.2 mm. It is preferable, when the signaling material has to be applied as a thin coating, that the percentage of redispersible polymeric modifier of the cement in the dry formulation is greater than that of the corresponding formulation of the upper layer, more preferably of the order of 4 to 8. % by weight approximately based on the total dry formulation. Whether applied as a thin coating or applied as a thick top coat, in order to improve the retroreflectivity of the signaling material, the material is preferably seeded with retroreflective agents and optionally reflective agents, such as by spreading them on the surface prior to setting of the cementitious signaling material. Retroreflective agents and suitable reflecting agents are those already indicated above, being chosen from those that are capable of being integrally incorporated in the matrix of the cementitious material by formulation in the dry mixture. The signaling materials of the present invention therefore include at least partially recessed spread of retroreflective filler particles having a size of at least about 600 μM greater than the surface of the top layer or coating. Preferably, the retroreflective filler particles have a size larger than at least about 850 μM. Optionally, a clear coat can be applied on the scattered particles, such as an acrylic resin or a polyurethane coating. It has been verified that the consistency of the cementitious material applied to the pavement, when sowing the retroreflective or reflecting particles, affects the depth at which the particles are submerged in the material and, thus, the percentage of the individual particles that are embedded in the matrix. In general, the higher the percentage of the exposed particles, the greater the retropeflectivity or initial reflectivity of the signaling material. However, even a small percentage of exposed retroreflective agents provide acceptable reflective behavior. With the wear of the surface of the pavement (and of the signaling material), both the retroreflective agents embedded in the surface and the retroreflective loads incorporated in the matrix of the signaling material become exposed and perform the desired function of reflectivity or visibility at night or in low lighting conditions. Visibility in illuminated environments is also improved by the presence of reflective agents. In this way, the permanence of the integrated cementitious signage materials, used as a top layer or as a coating, in comparison with traditional tapes or paints is demonstrated. The signaling material is a cementitious material that has high strength, such as high values of resistance to compression, tensile and bending, similar to those of concrete pavement, with retroreflective loads on the surface and preferably throughout the matrix to "replenish" the surface as the surface of the signaling material is abraded together with the adjacent pavement. The signaling material has a setting time approximately equal to that of concrete and a volume stability and thermal expansion comparable to those of concrete. Analogous to concrete, the signaling material is resistant to UV light and also to salts used to remove ice. The incorporated polymer provides an improved bond to the integral particles and also to the substrate pavement.

SPECIFIC MODALITIES OF THE INVENTION Example 1 In accordance with the present invention, a sample mixture of a white cementitious topcoat of fast-setting magnesium phosphate is prepared. Sample panels of the mixed top layer are molded and allowed to harden, after which retroreflectivity measurements are made using a 30 m portable geometry retroreflectometer. Two sample panels are molded to compare the retroreflectivity of a sealed sample with a clear acrylic sealer versus an unsealed sample of the top layer. Formulation top layer% by weight Silica sand 26.30 Silica flour (silica sand mesh 140) 20.00 Magnesium oxide 8.50 Monoammonium phosphate 8.50 Sodium tripolyphosphate 0.80 Aphoric acid 0.50 Dioxide titanium 3.50 Acrylic polymer 0.80 Defoamer 0.10 Glass beads 16-18 mesh (Visa-Bead L-511) 31.00 Mixed water percentage 10.75 Mixing time, minutes 3.0 Flow, mm ( cylinder of 5.1 cm x 10.2 cm) 146 mm Final setting, hours 1.0 Retropeflectivity, mcd / lux / m2 Sealed 691 Unsealed 698 Example 2 Samples of mixtures of cementitious signaling material in dry formulation are prepared with incorporation in the formulation of variable amounts of retroreflective glass beads. The glass beads used are soda-lime with a refractive index of 1.5-1.52 or greater. FLEXOLITE glass beads (trademark BT-3) are an example of suitable glass beads. Formulation of the signaling material Mixture 1 Mixture 2 Mixture 3 White silica sand mesh 50 23.8 12.5 20.1 Glass beads (20/30 mesh) 24.0 37.8 30.2 3.2 mm glass flakes 2.5 - - Titanium dioxide 3, 5 3.5 3.5 Acrylic polymer 0.7 0.7 0.7 Water melamine reducer 0.3 0.3 0.3 Defoamer 0.2 0.2 0.2 Calcium carbonate 10.0 10.0 10 , 0 Type 1 white portland cement 35.0 35.0 35.0 100.0 100.0 100.0 Percentage of water added 20.0 15.0 16.0 Flush-to-shelf flush consistency All percentages are by weight. Concrete beams are molded from the following concrete mix using freeze-thaw molds. The formulations of cementitious signage material were placed on the concrete 15-30 minutes after furring. Concrete mix% by weight Medusa Type I 14.85 Stone (9.5 mm and 12, 7 mm) 47.77 Sand 37.38 Water / cement ratio 0.40 The three mixtures exhibit rigidity approximately 5-10 minutes after mix. The mixtures are of a fine furring and are not adherent. It is not required to apply curing compound to the surface.

An illumination test is carried out on the composite beam obtained from the mixture 1. The surface of one half of the beam is ground to expose the inner matrix, approximately to a worn roadway. The reflectance of the concrete beam as it is molded and as it has been exposed is compared with a reference pavement marking tape. Comparison of composite beam of mixture 1 with a striped stripe of signaling Luminance Test 1 Test 2 Reference standard 3.76 Scratch tape (3M-STAMARK (registered trademark) L420) 3.44 3.47 Beam composite material (rectified surface to expose the integral beads) 3.36 3.32 Composite beam (as molded with integral beads) 3.47 3.41 Reflectance% Scratch tape (3M-STAMARK L420) 92, 0% composite beam (ground surface to expose the integral beads) 89,0% Composite beam (as molded with integral beads) 91, 5% The integrated signaling material, as molded, provides luminance values and reflectance percentages substantially equal to those of a reference pavement marking tape. The worn, simulated pavement, with the glass beads incorporated throughout the matrix, shows a small decrease in reflectance. EXAMPLE 3 Samples of cementitious mixtures of integrated signaling material in dry formulation are prepared with reflective glass flakes and with retroreflective glass beads incorporated in the formulation. The percentages are indicated by weight.

Formulation of the signaling material Mez, 1 Mez. 2 Mez. 3 Mez. 4 White silica sand (50 mesh) 30.00 35.20 35.40 30.40 Glass flakes (0.4 mm) 5.00 5.00 5.00 5.00 Glass beads 20/30 mesh (FLEXOL? BT-3) 15.00 15.00 15.00 15.00 Titanium dioxide 3.50 3.50 3.50 3.50 Water melamine reducer 0.60 0.40 0.20 0.20 Defoamer 0.20 0.20 0.20 0.20 Acrylic polymer 0.70 0.70 0.70 0.70 Calcium hydroxide - 5.00 - - Silica sand - - - 15.00 White silica sand (100 mesh) 10.00 - - - Type I white cement 35.00 35.00 40.00 30.00 100.00 100.00 100.00 100.00 Water percentage added 17.0 18.0 18.0 22.0 Slightly rigidified regidified exudate consistency The mixing time was 4 min. each A composite beam is molded using signaling material of the mixture 4 deposited on the next fresh concrete at 30 minutes after laying. Concrete mix% by weight Medusa Type I 14.67 Concrete sand 37.46 Concrete stone 47.87 Water / cement ratio 0.40 A beam test is carried out on the composite beam of mixture 4. The surface of one half of the beam is rectified to expose the inner matrix, approximately to that of a worn roadway. The strength of the concrete beam as it is molded and as it is exposed is compared with a reference pavement marking tape. Comparison of composite beam of mixture 4 with scratch tape Luminance Reference standard 3.36 Road scratch tape (3M - STAMARK L420) 3.11 Road scratch tape - with notch (3M- STAMARK L3801) 2.78 Composite beam 2.82 Reflectance% Road marking tape (3M - STAMARK L420) 92.6% Road scratch tape - notched (3M - STAMARK L3801) 82.7% Composite beam 84 , 0% The integrated, cementitious signage material of the present invention exhibits a reflectance of a value within 10% of the striped strip of reference roads and a higher reflectance than that of a strip for road marking provided with notches. Example 4 The compression strength test of the integrated cementitious signaling material according to one embodiment of the invention is carried out. Formulation of the signaling material% by weight Silica sand 22.85 Glass scales (0.4 mm) 2.00 Glass beads 20/30 mesh (FLEXOLITE BT-3) 20.00 Titanium dioxide 3.50 Defoamer 0 , 10 Polymer 1,20 Melamine 0,35 Silica flour (140 mesh silica sand) 10,00 Type I white cement 40.00 100.00 Percentage of water (by weight) 18.0 Resanable consistency Mixing time 4 minutes La The mixture is flowable until the last 3.5 minutes of the mixing time, at which time it becomes rigid. A composite beam is molded from the next concrete mix, with a 6.4 mm thick coating over the fresh concrete, approximately 30 minutes after mixing the formulation of the signaling material with water. Concrete mix% by weight Cement Medusa Type I 14.67 Concrete sand 37.46 Concrete stone (12.5 mm) 47.87 Water / cement ratio 0.40 Settlement 5.1 cm Below is the value of the compressive strength of the integrated cementitious signaling material. Compression strength (ASTM C-109) 1 day 7 days 14 days 28 days MPa 21.1 38.4 43.3 50.3 Example 5 Samples of mixtures are prepared in dry formulation of cementitious signaling material with the incorporation of retroreflective glass beads VISABEAD (registered trademark) L-511 and VISABEAD E-16 obtained from Potters Industries, Inc. The pearls of VISABEAD JL-511 are treated superficially with an adhesion promoter, specifically a silane with amino and vinyl functionalities. These functionalities allow the cross-linking with the cementitious components of the formulation. Both pearls of VISABEAD E-16 and VISABEAD Lr511 behave similarly in the cement mixture, except that the superior size of the VISABEAD E-16 bead is larger. Formulation of the signaling material% - by weight Mez 1 Mez 2 Silica sand 13,35 13,35 Glass scales (3,2 mm) 2,00 2,00 Glass beads 16-18 mesh (VESABEAD JL-511) 30.00 - Glass beads 14-16 mesh (VISABEAD E-16) - 30.00 Titanium dioxide 3.50 3.50 Defoamer 0.15 0.15 Acrylic polymer 0.70 0.70 Water melamine reducer 0 , 30 0,30 Silica flour (silica sand mesh 140) 10.00 10.00 White cement Type I 40.00 40.00 100.00 100.00 Percentage of water added 16.0 16.0 Flowable flowable consistency Mixing time 3 minutes for each of them. The mixture 2 remained in a flowable state longer than the mixture 1. Composite beams were molded from the concrete mixtures described below, approximately 30 minutes after mixing the concrete. It is believed that the longer working capacity observed with mixture 2 is caused by a surface area effect. Mixture of concrete% by weight Medusa Type I 14.67 Concrete sand 37.46 Concrete stone 47.87 Water / cement ratio 0.41 Example 6 Samples of cementitious signaling materials in dry formulation were molded into petri dishes in petri dishes. where retroreflective glass beads had been incorporated and the surface was marked to create a fluted textured profile. Formulation of signaling material% >; by weight Mez 1 Mez 2 Silica sand (30/50 mesh) 13,85 13,85 Glass flakes (3,2 mm) 1,50 1,50 Glass beads 16-18 mesh (VISABEAD L-511) 30 , 00 - Titanium dioxide 3.50 3.50 Acrylic polymer 0.70 0.70 Defoamer 0.15 0.15 Water melamine reducer 0.30 0.30 Silica flour 10.00 10.00 Glass mesh beads 20/30 (FLEXOLITE BT-3) - 30.00 White cement Type I 40.00 40.00 100.00 100.00 Percentage of water added 16.0 17.0 Flowable flowable consistency Mixing time of 3 minutes for each of them. Marking Procedure Approximately 30 minutes after mixing, the surface of the petri dish samples were marked using a square design marking pad to create a textured surface. After marking the surface, a groove of 1.6 mm is created. The surface of each marked sample is flush using a 120 mesh carbide master to expose the integral integral glass beads as in a worn driveway. The samples are qualitatively checked for retroreflection using a standard flashing light. The samples are placed on the floor of a dark room and light is projected onto the surface. The areas where the pearls were exposed exhibited retroreflection after contact with light. The reflectivity is similar to that of the 3M STAMARK K380I notched ribbon, but not as pronounced. Example 7 A formulation of integrated cementitious signaling material with a higher level of polymer is prepared to determine whether or not an improved integrity of the surface is obtained. Formulation of the signaling material% by weight Silica sand (30/50 mesh) 10.50 Glass scales (3.2 mm) 2.00 Glass beads 16-18 mesh (VISABEAD 1 ^ 511) 30.00 Dioxide titanium 5.00 Acrylic polymer 4.00 Water melamine reducer 0.30 Silica flour 8.00 Defoamer 0.20 Type I white cement 40.00 100.00 Percentage of water 17.0 Flowable consistency Mixing time 3 minutes The surface of the cookie molded in the petri dish is hard. Furring is difficult as a result of the improved density and hardness of the surface. The carbide master (120 mesh) used is able to abrade the surface more easily once the initial layer of paste has been removed. The higher level of polymer improves the quality of the surface. A sample is molded in a petri dish by applying a surface retarder in the stiffening to achieve a good exposure of the beads. The use of a surface retarder as a chemical texturing agent retards the hydration of cement on the surface to obtain the desired exposure of the profile of the beads. Optionally, this retarder could be used to improve reflection.

Example 8 An expanding agent is incorporated into the mixture to compensate for shrinkage and an air entrainer for freeze-thaw resistance. Samples are prepared which are tested for retroreflectivity. Formulation of material Percentages by weight of signaling Mez 1 Mez 2 Mez 3 Mez 4 Silica sand 16,34 19,34 14,34 18,84 Silica sand mesh 140 10.00 10.00 10.00 10.00 Defoamer 0.10 0.10 0.10 0.10 Water melamine reducer 0.30 0.30 0.30 0.30 Acrylic polymer 1.75 1.75 1.75 1.75 Glass beads 16-18 mesh (VISABEAD 1-511) 30.00 30.00 30.00 30.00 Calcium oxide 2.50 2.50 2.50 - Air tracer 0.01 0.01 0.01 0.01 Glass flakes (0.4 mm) Titanium dioxide 4.00 4.00 Black iron oxide 6.00 Yellow pigment - 1.00 - - White cement Type I 35.00 35.00 - 35.00 Gray cement Type I - -. 35.00 - 100.00 100.00 100.00 100.00 Water percentage 14,0 14,0 17,0 15,0 Levelable, leveling, fillable, fillable consistency Mixing time of 4 minutes for each mixture. Composite composite beams The signaling material of each of the mixtures is molded on 6.4 mm thick concrete beams, approximately 30-60 minutes after screeding the concrete. The surface of the concrete is raked before applying the signaling material. The concrete beams are molded in a variable length mold (5,1x5,1x25,4 cm) from the concrete mix indicated below. After approximately 5-10 minutes after placing the coating on the concrete, a layer of the glass beads is applied by spreading the latter on the surface of the coating of each mixture in a proportion of approximately 3 kg / m2. Concrete mix% by weight Cement Medusa Type I 14.67 Concrete sand 37.46 Concrete stone 47.87 Water / cement ratio 0.385 The retroreflection test carried out with a standard flashlight shows a good retroreflection of the light beam. The penetration depth of the beads determines the degree of retroreflection. The more pearls are exposed, the greater the allowable light input and the greater the subsequent retroreflection exhibited. Example 9 An integrated cementitious signaling material is prepared, incorporating an expanding agent and an air entraining agent. The silica flour is replaced by 100 mesh silica sand. Formulation of signaling material Percentage by weight Mixture 1-white Mixture 2-yellow Silica sand 20,94 23,44 Silica sand mesh 100 10,00 10,00 Glass beads 16-18 mesh (VISABEAD -511) 26.00 26.00 Titanium dioxide 3.50 - Defoamer 0.10 0.10 Acrylic polymer 1.75 1.75 Air tracer (SILEPON (registered trademark) RN6031 ) 0.01 0.01 Water melamine reducer 0.20 0.20 Calcium oxide 2.50 2.50 White cement Type I 35.00 35.00 Yellow pigment (HANSA DCC1103) «... 1.00 100.00 100.00 Percentage of water added 13.0 16.8 Percent flow ASTM C 230 (5 drops) 7733, 0.00 74.0 Cup weight 400 ml 863.3 834.8 Resanable consistency Resanable Concrete mix% by weight Cement Jellyfish Type I 14.67 Concrete sand 37.46 Concrete stone 47.87 Water / cement ratio 0.409 The above concrete mix is molded into molds (10.2x40.6x7.6 cm) half an hour before mixing. to upper layer of cementitious signage. The surface of the concrete is raked in cross sections. The upper layer is placed and it is leveled to a thickness of approximately 3.2 mm. Both mixtures rigidify more than usual, obtaining a lower flow. 'Glass beads of mesh 16-18' are spread (VISABEAD L-511) on the surface of each beam in a proportion of about 1.5 kg / m2. Due to the stiffer consistency, the samples are vibrated to facilitate penetration of the beads. The retroreflection test carried out with light from a standard scintillating light shows a good retroreflectivity of the light beam. The retroreflectivity is equal to or greater than the retropelectivity of the corresponding color of the full tape 3M STAMARK L420 and 3M notched tape STAMARK L380I. The compressive strength of the resulting upper layer is tested according to ASTM-C109 after 7 days, obtaining the following results. Compressive strength at 7 days Mixture 1 Mixture 2 MPa 52.5 40.8 Example 10 To test retroreflectivity samples of integrated signaling material are prepared where retroreflective pearls have been incorporated scattered on the surface. Formulation of signaling material Percentage by weight Mez 1 Mez 2 Mez 3 (white) (blancal (amar.) Silica sand 16,84 16,84 19,34 Silica sand mesh 100 10,00 10,00 10,00 Glass beads 16-18 mesh (VISABEAD 1 ^ 511) 30,00 30,00 30,00 Dioxide titanium 3.50 3.50 - defoamer 0.10 0.10 0.10 Acrylic polymer 1.75 1.75 1.75 Air tracer (SILIPON RN6031) 0.01 0.01 0.01 Water melamine reducer 0 , 20 0.30 0.30 Calcium oxide 2.50 2.50 2.50 White cement Type I 35.00 35.00 35.00 Yellow pigment (HANSA DCC1103) -__ ___ 1.00 100.00 100.00 100 , 00 Water percentage added 14,0 13.0 17,0 Flow, mm (5.1 x 10.2 cm cylinder) 266.7 254 76.2 Mixing time 3 minutes for each mixture. Sample preparation The signaling material is poured into petri dishes. On the surface of each cookie, more 16-18 mesh glass beads (VISABEAD JL-511) are spread at a rate of about 1.5 kg / m2. It is found that the degree to which the pearls sink into the cementitious material is based on the consistency of the cementitious mixture.

Mix 1 - the beads sink approximately 90% into the mixture. Mix 2 - the beads sink approximately 75% into the mixture.

Mix 3 - the beads sink approximately 75% into the mixture. The retroreflection tested with a standard scintillating light confirms that the depth of penetration of the scattered layer of pearls determines the level of retroreflection. Mixture 2 exhibits a higher reflectivity (visually) compared to Mixture 1. However, even the sample of Mixture 1 with a penetration of 90% shows an acceptable reflectivity compared to the co-representative color of the full ribbon 3M STAMARK L420 and of the 3M notched tape STAMARK L380I. EXAMPLE 11 To perform the retro-reflectivity test, further samples of cementitious signaling material are prepared where retroreflective beads have been incrooved and scattered. Formulation of signaling material Percentage by weight Mez 1 Mez 2 Mez 3 (white) (amari.) (Black) Silica sand 16,94 19,39 16,24 Silica sand mesh 140 10,00 10,00 10,00 Glass beads 16-18 mesh (VISABEAD L-511) 30,00 30,00 30,00 Defoamer 0 , 10 0.10 0.10 Black iron oxide pigment - - 4.00 Air tracer 0.01 0.01 0.01 Water melamine reducer 0.20 0.25 0.40 Calcium oxide 2.50 2.50 2.50 Yellow pigment (HANSA DCC1103) - 1.00 - Acrylic polymer 1.75 1.75 1.75 White cement Type I 35.00 35.00 - Cement Type II - - 35.00 Titanium dioxide 3.50 - - 100.00 100.00 100.00 Percentage of water 15.0 16.0 18.0 Flow, cm) 19.05 23.2 17.8 Mixing time of 4 minutes for each of the mixtures. The mixture 1 rigidifies approximately 10 minutes after mixing. The mixture 2 continues to be workable for several hours. Samples of the cementitious signaling materials are molded in petri dishes and 16-18 mesh glass beads (VISABEAD Lr511) are spread on the surface of each cookie in a proportion of about 1.5 kg / m2. Example 12 Formulations of cementitious, white and yellow signaling coating materials are prepared and tested, with waterproofing properties where glass flakes and beads have been spread. Coating formulation Mixture 1 Mixture 2 of signaling material (white) Camarilla) White silica sand mesh 50 16,925 18,30 Silica sand mesh 100 16,925 18,30 Sodium oleate 0,25 0,25 Mixed stearates 0.50 0.50 Defoamer 0.35 0.35 Acrylic polymer 6.00 6.00 Hydrophobic aluminum silicate 2.75 2.75 Water melamine reducer 0.80 0.80 Calcium carbonate 10.50 10.50 Yellow pigment (HANSA DCC1103) - 1.25 Titanium dioxide 4.00 - White cement Type I 40 , 00 40.00 Wollastonite fibers (NYAD G fibers) 1.00 1.00 100.00 100.00 Very reflective yellow color Percentage water added 24.0 24.0 Percentage flow (5 drops) - ASTM C230 108.0 120.0 Flow, cm (cylinder of 5, 1 cm x 2.2 cm) 15.24 15.87 Mixing time 4 minutes for each of the mixtures. The consistencies of mixtures 1 and 2 were good; however, white patches and unmixed stearates are present in mixture 2. Since mixed stearates constitute an optional component of the coating material, they do not need to be used in the white or yellow formulations. Samples of each mixture are placed on precast concrete at a coating thickness of 0.8 mm. The hardened precast concrete slab is lightly sandblasted and wetted before application of the coating. Half of the coated section of both yellow and white strips is sown with glass flakes (3.2 mm) and the other half with glass beads. The coating of the pearls and scales is approximately 1.5 kg / m2. The glass beads are easy to apply and the effect of their reflective properties translates into a greater visibility than that obtained by the use of glass flakes. Example 13 Percentage in oeso Formulation Mixture 1 Mixture 2 White silica sand 50 mesh 17.76 20.67 Silica sand 100 mesh 10.00 10.00 Glass beads 16-18 mesh (Visa Bead L-511) 30.00 30.00 Defoamer 0.06 0.08 Titanium dioxide 4.00 - Hansa Yello, DCC 1165 1.00 Water melamine reducer 0.18 Water reducer based on sodium naphthalenesulfonate - 0.15 Sodium carbonate 0.15 0 , 20 Calcium oxide 0.50 0.50 Redispersible acrylic polymer 1.75 1.75 Neopentyl glycol 0.50 0.50 White calcium aluminate cement 0.10 0.15 White cement Type I 35.00 35.00 Percentage water added 11.04 11.34 Mixing time 4 min. 4 min. Flow, cm (cylinder of 5.1 xl0.2 cm) 19.68 18.09 Weight cup 400 ml 842 867.2 Speed of stiffening l h 35 min. 1 h 19 min. Initial setting l h 55 min. 1 h 39 min. Final setting 3 h 20 min. 2 h 24 min. The behavior of certain integrated cementitious signaling materials, prepared in the previous examples, is evaluated with respect to the resistance to compression and bending, tensile strength with exfoliation and binding by detachment, the results being offered in megapascals (MPa) in the next Table I. The dry shrinkage of the material is tested by ASTM C-157 (modified) and recorded as percent change in Table I. The samples are wet cured for 1 day and then cured in air for the remainder of the test. The ASTM assay protocols followed for each measurement are also indicated in the Table. The results of the tests demonstrate that the integrated cementitious signaling materials of the present invention are suitable for use on roadways and roads, as well as on other paved surfaces such as airport runways, parking surfaces, garages and the like. It is to be understood that the examples are offered for illustrative purposes only, as a further exemplification of how to prepare and use the signaling materials of the present invention. The integrated signaling materials according to the present invention can be formulated according to known techniques to satisfy the performance criteria required for specific applications.

Table I Behavior of integrated signaling materials I Day 28 Days Mix 1 Ex. 13 (white) MPa MPa Compression strength ASTM C-109 20, 3 46.4 Flexural strength ASTM C-348 4.53 6.0 Tensile strength with exfoliation ASTM C-496 2.35 3.3 Release joint ASTM D-4541 1.4 1.6 Shrinkage drying (% change) 3-Day 7-Day ASTM C157 ICRI (modified) -0.031 -0.058 -0.095 Mixture 2 Ex. 13 (yellow) Compressive strength ASTM C-109 26.4 61.0 Resistance to bending ASTM C-348 5.1 7.7 Tensile Strength with ASTM C-496 Exfoliation 2.5 4.9 ASTM D-4541 Release Bonding 1.4 2.0 Shrinkage on Drying (% change) 3-Days 7-Day ASTM C157 / ICRI (modified) -0.023 -0.047 -0.091 Example 14 8 samples of horizontal retro-reflective coatings are evaluated with respect to retroreflective luminance according to ASTM D-4061 93b. Five samples of cementitious signaling materials containing the retroreflective agent and the polymeric modifier of the cement according to the present invention are chosen, in white, yellow and black, to be compared against white road marking tapes 3M STAMARK L420 and yellow 3M STAMARK L421 and with a black road marking tape from Stimsonite. The following Table II shows the retro-reflective luminance data obtained for both white and yellow light sources. The evaluation is carried out according to ASTM D-4061 93b. The data were obtained using a PR-703 spectrophotometer from Macbeth Division Photoresearch Kollmorgen. Two light sources are used to generate the data. The "white or standard" lamp is a Sylvania H4703 low beam halogen lamp. The "yellow or fog" lamp is a Blazer International C 1075K8M halogen fog lamp. The samples are tested in a geometry maintained at an entry angle of 86 ° and in an observer angle geometry of 0.2 ° by the ASTM method D-4061. The checks made during the measurement showed no significant variations at a constant observation angle. The final units are expressed in milicandelas per m2 per lux. The data in Table II present values that compare the total reflected luminance in the test conditions with each type of lamp. The last two columns collect the correction factor for the size ratio by dividing the result indicated to the left of the area factor normalized by the factor and registering in these two columns. No correction is applied to the reference samples since this factor would be 1.0. Based on the retroreflection test of a white light source from a car headlight, sample 1 has half the retroreflectance as sample 2. Compared to 3M reference tape, sample 2 performs better retroreflection . Sample 1 reflects less. Sample 1 has recessed retroreflective beads about 90% scattered, while sample 2 has scattered retroreflective beads embedded about 50%. The two white test samples are also different. Sample 3 has about half the reflectance as sample 4. Uncorrected sample 4 is less retroreflective than the 3M reference tape sample. Applying the area correction factor, sample 4 reflects better than the 3M reference tape sample. The black sample 5 is larger than the Stimsonite sample evaluated. The uncorrected value of the retroreflected luminance of the sample 5 is significantly greater than in the black reference tape and the corrected values are approximately equal. Based on the retropeflexion test of the yellow light source for a car headlight fog, the two yellow samples are almost equal (sample 1) and higher (sample 2) with respect to the retro-reflector coefficient of the reference tape sample 3M yellow The rationalized values, modified with respect to the area difference, are equal (sample 1) and better (sample 2) than in the case of the yellow reference tape 3M. The two white samples have a retropeflexion that is half (sample 3) of the other (sample 4). Sample 4 (no area adjustment) is equivalent to the 3M white reference ribbon sample. The unadjusted black sample (sample 5) is better than the Stimsonite sample. With the adjusted area, the two samples are equal. The use of the integrated signaling material of the present invention is more advantageous than the tapes and paints of the state of the art in view of the equivalent optical performance achieved, in addition to the longer service time of the integrated signaling material compared to the tapes and paintings headlight of an automobile, the two yellow samples are almost equal (sample 1) and higher (sample 2) with respect to the coefficient of retroreflectance of the yellow reference tape sample 3M. The rationalized values, modified with respect to the area difference, are equal (sample 1) and better (sample 2) than in the case of the yellow reference tape 3 »M. The two white samples have a retroreflection that is half (sample 3) of the other (sample 4). Sample 4 (no area adjustment) is equivalent to the 3M white reference ribbon sample. The unadjusted black sample (sample 5) is better than the Stimsonite sample. With the adjusted area, the two samples are equal. The use of the integrated signaling material of the present invention is more advantageous than the tapes and paints of the state of the art in view of the equivalent optical performance achieved, in addition to the longer service time of the integrated signaling material compared to the tapes and paintings Tabl H Retroreflected luminance evaluation * - Evaluated according to ASTM D4061 with a Photoresearch PR703 spectrophotometer with an observation angle of 0.2 ° and an entry angle of 86 °.

Claims (4)

? ? * * -38- NO VIRTUE OF THE INVENTION

1. - A dry formulation for a retroreflective signaling material 5 integrated for application to concrete or asphalt, characterized in that it comprises a cementitious mixture that includes a hydraulic or cementitious binder, a redispersible polymeric modifier for cement, a retroreflective agent filler and, optionally, a reflective agent filler.

2. A formulation according to claim 1, characterized in that the agent 10 retroreflective is chosen from the group consisting of glass beads, glass bubbles, glass spheres, ceramic spheres, plastic beads and mixtures thereof, and because the retroreflective agent has an average upper size of at least about 600 μM.

3. A formulation according to claim 1, characterized in that the agent The reflector is chosen from the group consisting of glass beads, glass bubbles, glass flakes, glass spheres, ceramic spheres, plastic beads and mixtures thereof, and because the reflective filler has a mean upper particle size smaller than 600 μM approximately.

4. A formulation according to claim 1, characterized in that the redispersible polymeric cement modifier is a dry polymeric resin selected from the group consisting of acrylic resins, ethylene-vinyl acetate, styrene-acrylic, styrene-butadiene, polyvinyl acetate, versatato of vinyl, vinyl acetate and mixtures, - * v > -39- 7.- A cementitious signaling material to be applied to concrete or asphalt, characterized in that it is prepared practically in situ from a mixture of water with a dry formulation comprising a cementitious mixture that includes a hydraulic or cementitious binder and a polymeric redispersible modifier for the cement, said signaling material having retroreflective agents at least partly embedded in its surface. 8. A dry formulation for an integrated retroreflective signaling material to be applied to concrete or asphalt, characterized in that it comprises a mixture that includes a hydraulic binder of at least one cement chosen from among 10 magnesium phosphate cements and magnesium-potassium phosphate cements, a retroreflective agent charge and, optionally, a reflective agent charge. 9.- A retro-reflective signaling material integrated to be applied to concrete or asphalt, characterized in that it comprises a surface that includes a hydraulic binder of at least one cement chosen between magnesium phosphate cements and magnesium-potassium phosphate cements, in which At least partially retro-reflective agent particles having a size greater than at least about 600 microns have been embedded at least partially. 10. A process for signaling a concrete or asphalt surface, characterized in that an integrated, liquid retroreflective signaling material according to claim 5 is applied thereto.