Abstract: The present disclosure relates a method of making a dispersion. Microparticles, nanoparticles and an asphalt component are mixed to form a dispersion. A sufficient amount of nanoparticles provides for an increase in material throughput relative to a comparable dispersion that is free of nanoparticles.

Abstract: The invention is a cost-effective method and formulation for cold paving applications that can be used to convert an unpaved surface, such as a gravel or dirt roadway, into a paved surface. The method includes applying an asphalt emulsion comprising asphalt, water, one or more emulsifiers, and a polymer to an existing unpaved surface to provide a layer of asphalt emulsion. An aggregate is then deposited over the emulsion layer to form a paved surface. The asphalt emulsion is formulated so that it can be used in a wide variety of conditions and with locally available aggregate. The set rate and viscosity of the asphalt emulsion can be selected so that it is able to penetrate partially into the unpaved surface to further improve the stability and rain resistance of the roadway.

Abstract: The invention relates to an aqueous bitumen emulsion, comprising bitumen and a surfactant agent, made from esters or amides of glycine betaine, produced by reaction of glycine betaine with a sulphonic acid and an alcohol or amine with a fatty chain derived from vegetable oils. Said bitumen emulsion may be used in the production of road surfaces.

Abstract: Apparatus for producing cold asphalt, such as for road repair and construction, that allows cold asphalt to be easily produced at or near the job site. The apparatus includes at least one hopper for receiving screened particulates, an optional second hopper for granular materials, e.g., sand, a live feed for additive oil, and another for optional lime, conveyors in which to convey the granular and screened particulates, oil, and optional lime to a mixer. The mixer is controlled through a controller that is programmed to determine the correct proportion of RAP (recycled asphalt and a small amount of new asphalt), optional sand (silicates and/or sieved RAP), additive hydrocarbon oil, and optional lime (limestone powder). The apparatus may be permanently installed to create a cold asphalt manufacturing plant or placed on a trailer for use at a construction site.

Abstract: A ball clay powder having a moisture content of less than 5% and at least about 25% of indigenous silica, said powder comprising a blend of at least two natural ball clays, wherein one of the ball clays is naturally silica rich and has at least about 40% indigenous silica.

Abstract: According to the invention, a slow setting bitumen-aggregate mix for cold paving is manufactured by a) preparing a cationic oil-in-water emulsion of bitumen in the presence of an emulsifier containing i) a tertiary polyamine selected from the group consisting of a di(C2-C3 alkylene)triamine, a tri(C2-C3 alkylene)tetraamine, a tetra(C2-C3 alkylene)pentaamine, a penta(C2-C3 alkylene)hexaamine, a hexa(C2 C3 alkylene)heptaamine or a mixture thereof, which amine compounds have only tertiary amine groups and contain one or two aliphatic groups with 8-22 carbon atoms, bound to a nitrogen atom, while the remaining nitrogen substituents are methyl groups and ii) an acid present in such an amount that the aqueous emulsion obtains a pH value from 1-6, preferably 1.5-5, and b) mixing the aqueous emulsion obtained with a solid aggregate.

Abstract: Asphaltic compositions that are made from recycled waste building materials may include recycled plastics, provide reduced environmental impact and may be formed to meet state standards for aggregates used in asphaltic cement and other paving and construction standards.

Abstract: Asphalt emulsion compositions for use in priming a granular surface such as a road bed are provided. The asphalt emulsion comprises asphalt, an amphoteric emulsifier, and water. The asphalt emulsion priming composition may be used on road beds to prepare the road bed for paving. Application of the asphalt emulsion priming composition to a granular surface, such as a road bed, can provide several advantages, including reducing or eliminating dust generated by traffic on the granular surface.

Abstract: This invention relates to a process for producing a hot, cold or lukewarm ready-to-use bituminous mix, characterized in that it includes the following successive steps: (a) preparing a hot, cold or lukewarm master mix or bituminous mix by mixing some or all of the bituminous binder proportioned in liquid form with some or all of the aggregates, and optionally with some or all of the fines and/or some or all of the aggregate mix and/or some or all of the various additives so as to obtain a mixture in which the aggregates and any fines and aggregate mix are coated by the bitumen, (b) storing of the master mix or of the bituminous mix obtained in step (a), (c) mixing the master mix or the bituminous mix stored in step (b) with one or more additional formulation components so as to obtain a hot, cold or lukewarm ready-to-use bituminous mix, in which step (c) is implemented at the mix production site if the additional formulation component is a thinning agent.

Abstract: Synthetic asphalt and petroleum asphalt modified synthetic asphalt emulsions which contain recycled tire rubber and processes for making the emulsions at temperatures above ambient or room temperature. These emulsions may contain significant quantities of recycled tire rubber and recycled and reclaimed motor oils and fluxes. In addition, aluminum chloride and ferric chloride may be used in clay-in-water solutions to form emulsifying agents for the synthetic asphalt and modified synthetic asphalt mixtures.

Abstract: Disclosed herein is a composition for solidifying soil and industrial waste. The solidifying composition contains 16-24 wt % of straight asphalt, 0.06-0.10 wt % of an emulsifier for asphalt, 0.8-1.2 wt % of light oil, heavy oil or a mixture thereof, 0.01-0.03 wt % of calcium chloride, 0.8-1.2 wt % of lignin, 0.7-1.3 wt % of an acrylic emulsion-based asphalt modifier, 0.13-0.21 wt % of sodium hydroxide, 0.22-0.34 wt % of oleic acid, and the balance of water. A solidified material formed using this solidifying composition has increased density, strength and elasticity, improved durability and a short curing time. Furthermore, the solidifying composition enables soil and industrial waste to be recycled as a substitute for stone materials, such that it allows material sources to be readily secured in public or construction work fields, leading to a reduction in construction cost, and can also contribute to the preservation of the natural environment.

Abstract: The present invention relates to bitumen emulsions that can be used in roadmaking applications for the production of cold mixes, emulsion-stabilized gravel and road pavements obtained at ambient temperature, the cohesion of which at young age is substantially improved over the cold mixes, emulsion-stabilized gravel and road pavements of the prior art. These bituminous emulsions are characterized by a median diameter of 0.6 ?m or less, and preferably 0.5 ?m or less.

Abstract: The invention concerns a bitumen emulsion-based surfacing composition or bituminous mix consisting of an amphoteric surfactant and its use in road highway engineering for making materials for new roads, for reinforcing or maintaining old roads or for punctually repairing same.

Abstract: Bituminous roadbuilding material obtained by impregnating, coating or contacting an aggregate, a recycling material, a coated aggregate or a mixture of these products with a bituminous emulsion (E), characterized in that the bitumen particles of the bituminous emulsion (E) used for the impregnating, coating or contacting comprise a fraction (F) representing 10 to 40% of the bitumen particles and having a median diameter of less than or equal to 0.6 ?m, preferably of between 0.1 ?m and 0.6 ?m, the remainder of the bitumen particles of the emulsion having a median diameter of greater than or equal to 1 ?m, preferably of between 1 and 20 ?m. The material is advantageously composed of cold mixes or of emulsion-stabilized gravel.

Abstract: The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion: 40 to 90% bitumen, 10 to 50% thermoplastic polyurethane, 0 to 10% aromatic oil, 0 to 50% filler, 0 to 0.5% catalyst.

Abstract: Bituminous asphalt binder materials which are modified by the addition of crumb rubber or ground tire rubber and a cross-linking agent are described. In addition, methods are provided for producing a modified asphalt binder containing crumb rubber or ground tire rubber and a cross-linking agent. The modified asphalt binders comprise neat asphalt, crumb rubber, one or more acids and a cross-linking agent. Optionally, the modified asphalt binder may include one or more polymer additives. The crumb rubber may be obtained from recycled truck and/or automobile tires. The addition of crumb rubber in asphalt binders can improve the consistency and properties of the asphalt binders at high and low temperatures. In particular, the modified asphalt binders of the present invention exhibit improved elastic behavior, resulting in improved performance of roads or other surfaces paved using the modified asphalt binder.

Abstract: The present invention relates to bituminous compositions suitable for use in paving applications containing water-in-oil bitumen dispersion of paving grade bitumen such as penetration-graded, viscosity-graded and/or penetration-graded varieties that is substantially free of volatile solvents and made by controlling temperature-dependent interfacial rheology through the use of selected surfactants. The invention paving compositions are suitable for use in the construction of load-bearing, high-traffic pavements at a temperature range lower than that required for conventional hot-mix bituminous paving compositions, yet with similar or superior compaction to densities property and at least equal cure rate.

Abstract: Disclosed herein are a method for solidifying soil and industrial waste and a solidified material prepared thereby. The solidified material of soil and industrial waste is prepared by adding 2-6 parts by weight of a 3-5-fold dilution of a solidifying agent and 3-15 parts by weight of cement to 100 parts by weight of soil, industrial waste or a mixture of two or more thereof. The solidified material prepared according to this method has excellent density, strength, elasticity and durability, and thus can be used as a substitute for stone material. Also, it can be advantageously used in high-temperature and high-humidity areas, because external impact or pressure is relieved because it is absorbed by asphalt.

Abstract: According to the invention, a slow setting bitumen-aggregate mix for cold paving is manufactured by a) preparing a cationic oil-in-water emulsion of bitumen in the presence of an emulsifier containing i) a tertiary polyamine selected from the group consisting of a di(C2-C3 alkylene)triamine, a tri(C2-C3 alkylene)tetraamine, a tetra(C2-C3 alkylene)pentaamine, a penta(C2-C3 alkylene)hexaamine, a hexa(C2 C3 alkylene)heptaamine or a mixture thereof, which amine compounds have only tertiary amine groups and contain one or two aliphatic groups with 8-22 carbon atoms, bound to a nitrogen atom, while the remaining nitrogen substituents are methyl groups and ii) an acid present in such an amount that the aqueous emulsion obtains a pH value from 1-6, preferably 1.5-5, and b) mixing the aqueous emulsion obtained with a solid aggregate.

Abstract: The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion: 40 to 90% bitumen, 10 to 50% thermoplastic polyurethane, 0 to 10% aromatic oil, 0 to 50% filler, 0 to 0.5% catalyst.

Abstract: The invention concerns method for enhancing the physico-chemical properties of bitumen compositions and novel bitumen compositions with enhanced properties and their uses by mixing a functionalized amorphous silica made by combining amorphous silica with a coupling agent.

Abstract: There is provided a method for making bituminous compositions comprising water-in-oil bituminous dispersion and aggregate by the steps of: preparing a solvent-free, water-in-oil bituminous dispersion comprising: (1) bitumen, in an amount from about 75.0% to about 95.0% by total weight of the bitumen dispersion; (2) a surfactant in an amount from about 0.05% to about 2.0% by total weight of the bitumen dispersion; and (3) water in an amount to complete the water-in-oil bituminous dispersion, and producing the bituminous composition having a temperature from about 50° C. to about 120° C. by mixing: (1) the water-in-oil bituminous dispersion of step (A), having a temperature from about 75° C. to about 95° C., in an amount from about 2.0% to about 10.0% by total weight of the bituminous composition, and (2) aggregate, having a temperature from about 60° C. to about 140° C., in an amount from about 90.0% to about 98.0% by total weight of the bituminous composition.

Abstract: The present invention relates to an aqueous quick-setting bitumen-aggregate mix suitable for cold pavement of roads, parking places, sidewalks and the like. The bitumen-aggregate mix is manufactured by mixing a mineral aggregate, water, a de-emulsifier, containing hydraulic cement, and a cationic oil-in-water bitumen emulsion, containing, as an emulsifier, a salt of a tertiary diamine and a phosphoric acid. The diamine has the formula (I), where one or two of the groups R1, R2, R4 and R5 designate a hydrocarbon group of 6–22, preferably 8–20 carbon atoms, and the remaining R1, R2, R4 and R5 groups are an alkyl group with 1–4 carbon atoms, and/or a group —(A)2H, where A is an alkyleneoxy group with 2–3 carbon atoms, and s is a number from 1–4, R3 is an alkylene group with 2–4 carbon atoms and n is a number from 0–2.

Abstract: A method of selecting a bituminous emulsion with enhanced performance for paving is provided. This method includes selecting polymer modified bitumen with a penetration value of about 25 to 450 dmm at 25° C. and selecting one or more emulsifiers comprised of at least about 5% by mass of a cationic nitrogenous compound selected from compounds having a carbonyl carbon atom bonded to a nitrogen atom, compounds having a carbon atom double bonded to a nitrogen atom, or combinations thereof based on the total mass of the selected emulsifier. Each selected emulsifier is reacted with a carboxylic acid to create one or more carboxylate salts. Each carboxylate salt created from a different proposed emulsifier separately is mixed with the bitumen to form one or more proposed bituminous emulsions. The coalescence of each proposed bituminous emulsion is measured using a rheology test, and a bituminous emulsion of the composition described above is chosen for paving a surface based on its coalescence properties.

Abstract: A solvent-based solution including methods of making and using for treating and protecting for heavy traffic asphalt pavement, particularly against water-associated problems, such as repeated freeze/thaw cycles, and damage caused by exposure to UV light. The mechanism of protection include an internal coating and partial internal sealing of voids and pores with a special blend of pre-oxidized asphalt emulsion that has been modified with moisture-insensitive silicone-based compounds and surfactants to enhance penetration depth and effectiveness. The sealer works from within the asphalt pavement as well as at the surface. A water-repelling function prevents water from penetrating from the surface while allowing vapor transmission across the pavement through connected voids and capillaries. The sealer should also enhance the bonding strength between asphalt coated particles, thus eliminate chipping.

Abstract: A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding the liquid paint sludge as the hydrating agent directly to the building material mix.

Abstract: The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” more specifically, drilling waste and aggregate and a novel road base material. Hydration and mixing of the waste materials along with a binder, will achieve an irreversible pozzolanic chemical reaction necessary for stabilization into a road base. An asphalt emulsifier may be included in the binder to manufacture asphalt stabilized road base. The entire method is a cold batch process.

Abstract: A sealer base comprising at least one anti-wear agent comprising aliphatic carboxylic acids and aliphatic polyamides is disclosed.

Abstract: The subject of the present invention is a process for preparing a bituminous product, characterized in that a compound based on a phosphoric or polyphosphoric acid supported on a mineral oxide of high porosity is used. The subject of the invention is also the bituminous product that can be obtained by the above process, and its uses.

Abstract: The invention concerns a method for making cold-process bituminous mixes, using a bitumen-type emulsion in aqueous phase and aggregates. It consists of treating said aggregates with an agent providing hydrophobicity, prior to mixing said emulsion with said aggregates.

Abstract: An asphalt mastic is prepared by combining comminuted waste solids from a petroleum refinery with liquid asphalt that is either a hot asphalt or an asphalt emulsion. The resulting composition is similar in performance to Trinidad Lake Asphalt and is useful either on its own or as a binder for asphalt-aggregate compositions, in both cases optionally in combination with polymeric additives that are common in the asphalt industry.

Abstract: Water-based coal tar emulsions are described which are prepared from a blend comprising coal tar, water, acrylonitrile-butadiene copolymer powders and clay. After the emulsion is prepared from the blend, a rubber latex may be added to the emulsion. Films obtained from the emulsions exhibit desirable elongation and tensile properties.

Abstract: A medium-setting bituminous composition or mixing grade emulsion for coating aggregates at ambient temperature with reduced levels of petroleum distillates or other solvents. These emulsions are formed from the combination of about 50 weight percent to 75 weight percent asphalt, about 20 weight percent to 40 weight percent water, an inverted emulsion present in an amount sufficient to reduce or eliminate the need for petroleum distillates in forming the emulsion, and an acid component and a base component each of which is present in a type and an amount sufficient to form a salt that facilitates formation of the emulsion. Methods of preparing such emulsions and of paving by adding the inverted emulsion to the asphalt before emulsification, which minimizes foaming thereof, are also included.

Abstract: An asphalt-based, cold paving/coating formulation that provides increased flexibility with respect to the choice of aggregate types, asphalt emulsion types, type and amount of the surfactants used to produce the asphalt emulsion, asphalt emulsion pH's and application temperature's than conventional cold paving/coating formulations while providing good mix times and curing behavior. The asphalt-based formulation can be formed by mixing water; an asphalt emulsion; at least one first compound in aqueous solution selected from the group consisting of alkali metal salts, alkali metal hydroxides, ammonium salts, and ammonium hydroxide; at least one second compound in aqueous solution selected from the group consisting of Group IIA salts, Group IIIA salts, Group IIIB salts, copper salts, zinc salts, cadmium salts, manganese salts, iron salts, cobalt salts, and nickel salts; and optionally aggregate. Also, a method of preparing an asphalt-based formulation using these components.

Abstract: Provided is, particularly, a cationic asphalt emulsion composition which is scarcely affected by temperature during paving and by the characteristics of the aggregates to be used, can secure a sufficient time required to mix aggregates and enables slurry fluidity suitable for paving. The asphalt emulsion composition contains asphalt and water, the composition comprising kraft lignin (A) having a molecular weight of 4000 to 60000 and a specific polyamine (B) in each specific ratio to the asphalt emulsion composition.

Abstract: The invention concerns a method for making cold-process bituminous mixes, using a bitumen-type emulsion in aqueous phase and aggregates. It consists in treating said aggregates with an agent providing hydrophobicity, prior to mixing said emulsion with said aggregates.

Abstract: Compositions of an aqueous suspension of a drilling mud bentonite conforming to API specification 13A for mastic and sealant compositions.

Abstract: The present invention provides a stabilizer for asphalt emulsion by which asphalt emulsion having a good chemical stability and being excellent in stationary stability and storage stability can be obtained. A polyoxyethylene adduct compound having a terminal group A selected from a C8-22 alkyl group etc., a terminal group B selected from C1-4 alkyl group etc., and 130 to 500 oxyethylene groups on the average for bonding the terminal groups A and B is used as a stabilizer for asphalt emulsion.

Abstract: A emulsion for sealants, coatings and/or mastics having reduced volatile organic compounds is disclosed. The emulsion includes a slurry of substantially fully hydrated colloidal clay and a cutback in preferred ratios such that the emulsion has characteristics adapted to cold application processes. A method of reducing volatile organic compounds in sealants, coatings and/or mastics is also disclosed.

Abstract: An emulsion for sealants, coatings and/or mastics including a bitumen and a slurry of water and substantially fully hydrated colloidal clay is disclosed. The preferred emulsions include bentonite and a bitumen in preferred ratios such that the composition has characteristics adapted to cold application processes. Such emulsions are also disclosed as capably emulsifying high melt bitumens. Furthermore, a method of preparing such emulsions is disclosed.

Abstract: A cutback asphalt and an asphalt emulsion comprising biodiesel is disclosed. Cutback is mixed with a sufficient amount of biodiesel to reduce the viscosity of the asphalt, producing, e.g., a cold patch material which is free of added liquid petroleum. An asphalt emulsion of fine particles of asphalt, water and, preferably, an emulsifier, can be formed which is free of added liquid petroleum.

Abstract: A method of producing a bituminous foam includes supplying a bitumen in water emulsion from a tank (2) into primary and secondary heating circuits (8, 34), whereby the emulsion is heated (via heating coils 12 and 12′) and its pressure raised such that, on discharge to ambient conditions via outlet pipes (30 or 30′), the emulsion foams as water evaporates therefrom.

Abstract: The invention is in a composition which is useful to dampen noise and vibrations which in composition can be applied to and adhered to a substrate. The composition comprises an emulsion or dispersion of asphalt in water and fillers. Preferably the fillers are alkaline earth metal or alkaline metal carbonates, or sulfates. In another embodiment, the invention is a process for applying a damping composition to a substrate which comprises contacting a composition of an emulsion of asphalt in water and a filler with a substrate. Preferably the asphalt emulsion on the surface of the substrate is exposed to a source of heat so as to dry the composition on the substrate. In a preferred embodiment the substrate is a surface in an automobile such as the floor-board, trunk well, wheel well, rocker panel or underbody.

Abstract: Item A, Gypsum is a valuable building material. Item B, Heavy hydrocarbon emulsion such as bitumen is natural element with long life.

Abstract: The present invention provides an amine or polyamine, which has a surface activity not inferior to a solid tallow-based amine and an excellent workability. A salt of the amine is suited for emulsifying asphalt and the like, and also provides an asphalt emulsion composition which is obtained by using the salt and which has a quick setting property. Namely, the prevent invention provides a polyamine represented by the formula (1), a process for producing the amine, and an asphalt emulsion composition containing a water-soluble salt of the amine. wherein R is a straight or branched hydrocarbon group having 8 to 22 carbon atoms; x is a number of 1 to 5; and each of y and z is a number of 0 to 5 with the proviso that both of y and z are not 0 at the same time.

Abstract: An emulsion for sealants, coatings and/or mastics including a bitumen and a slurry of water and substantially fully hydrated colloidal clay is disclosed. The preferred emulsions include bentonite and a bitumen in preferred ratios such that the composition has characteristics adapted to cold application processes. Such emulsions are also disclosed as capably emulsifying high melt bitumens. Furthermore, a method of preparing such emulsions is disclosed.

Abstract: A emulsion for sealants, coatings and/or mastics having reduced volatile organic compounds is disclosed. The emulsion includes a slurry of substantially fully hydrated colloidal clay and a cutback in preferred ratios such that the emulsion has characteristics adapted to cold application processes. A method of reducing volatile organic compounds in sealants, coatings and/or mastics is also disclosed.

Abstract: The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” and aggregate waste and a novel road base material. Hydration and mixing of the waste materials along with a binder, will achieve an irreversible pozzolanic chemical reaction necessary for stabilization into a road base. An asphalt emulsifier may be included in the binder to manufacture asphalt stabilized road base. The entire method is a cold batch process.

Abstract: Compositions of an aqueous emulsion of a bitumen and a drilling mud bentonite are especially adapted for cold application and provide many advantages.

Abstract: A process provides a stable emulsion, in particularly a stable, concentrated bitumen emulsion, by emulsifying a first hydrophobic or hydrophilic phase having a viscosity between 1 and 5000 Pa.s with a second phase immiscible in the first phase, in the presence of at least one surfactant, by mixing together the first phase, second phase, and surfactant under a laminar shear regime.