Abstract: Disclosed is a method for determining a mixing temperature of an asphalt mixture which includes the following steps: S100, obtaining a test result of surface energy of hot-melt asphalt; S200, obtaining, according to a calculation formula for total adhesion work and in combination with the test result of the surface energy of the hot-melt asphalt, total adhesion work of an asphalt and aggregate interface at different mixing temperatures; S300, determining a temperature range corresponding to peak values of the total adhesion work of the asphalt and aggregate interface; and S400, calculating a median value of the temperature range determined in S300, so as to determine an optimum mixing temperature of the asphalt mixture.

Abstract: Asphalt paving and stripping system and method involves the use of a primer, comprising hydrophobic microwave absorbing material mixed in a hydrophobic liquid, between an asphalt layer and a base layer below. The primer is configured to be deposited on the base layer at room temperature without preheating. Heating the hydrophobic microwave absorbing material, sandwiched between the asphalt and base layers, by microwave energy, allows striping of the asphalt layer from the base layer by a wheel loader.

Abstract: Disclosed herein are formulations for, and methods of making and using compositions formulated through the use of maltenes to lower the required asphalt emulsion content for recycling and stabilization of roadway materials as herein disclosed.

Abstract: Compositions and methods are provided for treating a pavement such as by microsurfacing or slurry sealing. The compositions contain iron chelants that are effective in reducing discoloration of the pavement surface.

Abstract: A polymer-modified emulsion used for rejuvenating or repairing deteriorated asphalt pavement includes an asphalt phase containing an asphalt and a biobased rejuvenating agent, and an aqueous phase including water and an emulsifying agent, and one or more polymers included in the asphalt phase, the aqueous phase or both.

Abstract: The invention relates to oil-in-water (water continuous) emulsions that can be used as fuels, and which have high static and dynamic stability, to a process for their preparation, and to fuel compositions comprising such emulsions.

Abstract: Methods for making emulsifiers, emulsified drilling fluids, and methods for using the same are provided. In one or more embodiments, the method for making an emulsifier can include mixing a tall oil and a triamide. The triamide can have the chemical formula: where: x, y, and z are integers independently selected from 1 to 10, R1 is a C8-C20 alkyl, a C8-C20 alkenyl, a C8-C20 dialkenyl, or a C5-C20 alkynyl, R2 is H or ?independently selected for each [(CH2)xNR2(CH2)y)] unit, where R4 is a C1-C3 alkylene or a C1-C3 alkylene alcohol, and where at least one R2 is ?and R3 is a C8-C20 alkyl, a C8-C20 alkenyl, a C8-C20 dialkenyl, or a C8-C20 alkynyl.

Abstract: A coating system and related methods for an airfield surface or a roadway is described. The coating system may include a stable cationic emulsion for application to the airfield surface or the roadway. The stable cationic emulsion may include a) an asphalt blend comprising gilsonite, wherein the gilsonite is modified to possess a positive charge, b) one or more polymers, and c) one or more surfactants not including a cationic surfactant. The coating system may also include a fine aggregate material for application to the stable cationic emulsion applied to the airfield surface or the roadway.

Abstract: Provided is a crude oil dispersion stabilizer containing a vinyl alcohol-based polymer, wherein a degree of saponification of the vinyl alcohol-based polymer is greater than 70 mol % and 82 mol % or less, and the total content of carboxyl groups and lactone rings is 0.02 to 1 mol % relative to all structural units of the vinyl alcohol-based polymer. According to this, there is provided a crude oil dispersion stabilizer capable of dispersing or emulsifying a highly viscous crude oil, thereby reducing the viscosity and allowing the resulting crude oil dispersion liquid or emulsion to be present stably for a long time.

Abstract: The invention concerns the use of an aqueous suspension of solid particles of a calcium/magnesium compound of formula (A): nCa(OH)2.mCaCO3.aMgO.bMg(OH)2.cMgCO3.I as an agent regulating the breaking of a bitumen emulsion. The invention also concerns a bituminous road material obtained by mixing a solid mineral fraction with a cationic bitumen emulsion of the type binder in water, characterised in that it involves adding, to the mineral fraction, an aqueous suspension of solid particles of a calcium/magnesium compound of formula (A). The invention also concerns a method for preparing a material according to the invention and the use of same for producing surface courses, tack coats or temporary surface courses. The invention finally concerns a method for obtaining a tack coat by spreading a cationic bitumen emulsion, comprising a step of applying an aqueous suspension of solid particles of a calcium/magnesium compound of formula (A).

Abstract: A pavement composition includes a recycled hot mix asphalt (HMA) sheet mix composition including more than 50% and up to 100% recycled fines mixed with a rejuvenating agent. The recycled fines of the HMA sheet mix are separated from a reclaimed asphalt pavement (RAP) composition and substantially all of the recycled fines are capable of passing through a sieve having an opening size of ? inch (9.5 mm). Pavement systems include an existing pavement layer and a thin-lift overlay made of the recycled HMA sheet mix on the existing pavement layer. Pavement systems also include a three-layer system including a leveling course layer, an interlayer, and a surface course layer in which the leveling course layer and/or the surface course layer include a recycled HMA sheet mix composition.

Abstract: A process for preparing a bitumen-polymer composition includes mixing and heating a base bitumen-polymer with at least: one compound of general formula (I): R1—(COOH)z where R1 is a linear or branched, saturated or unsaturated, hydrocarbon chain, including 4 to 68 carbon atoms, and z is an integer from 1 to 4, and a compound (II) selected from the compounds able to react according to an acid-base reaction, an amidation reaction or an esterification reaction, with the carboxylic acid group of the additive (I). Also set forth is the composition obtained by the method and a kit composed of a bitumen-polymer composition including an additive (I), in the form of blocks, and a capsule comprising a compound (II).

Abstract: A modular irrigation controller has a robust ground path with high conductivity that can accommodate lightning induced power surges on field valve wires and common wires that are connected to a plurality of station modules. Sensitive electronic components in the station modules are thereby protected from damage. The robust ground path extends from conductors on circuit boards within the station modules through captive mounting screws to a metallic backplane and then through metallic grounding brackets within a pedestal enclosing the modules and the backplane. The grounding brackets are in turn grounded to both an earth ground stake and to a ground wire associated with the incoming one hundred and ten volt AC power.

Abstract: This invention provides, among other things, an asphalt-based sealcoat composition comprising high levels of titanium oxide particles. In some embodiments, the invention also provides a highly solar reflective asphalt-based sealcoat composition comprising high levels of titanium oxide particles. In some embodiments, the invention provides an asphalt-based sealcoat composition capable of reducing pollutants comprising high levels of titanium oxide particles. In some embodiments, the invention provides methods for preparing asphalt-based sealcoat compositions as well as their application to asphalt surfaces.

Abstract: Disclosed is a rapid forming intermediate paving material to accommodate efficient movement of heavy loads, including but not limited to heavy loads necessitated by large-scale agricultural operations. Also disclosed is a process for producing such a paving material. Producing such a paving material may be advantageous either preceding or following precipitation events, as cross linking agents allow somewhat rapid formation of a portion of polymer film thus quickly forming a durable surface for said dirt or gravel road.

Abstract: A method for producing a candle shaped from a wax, wherein a dispersion of water droplets is purposely added within the wax.

Abstract: N-alkyl, N-alkenyl, N-cycloalkyl, N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, are obtained from a reaction process in the absence of solvent at a temperature range from 30 to 180° C. and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, are obtained inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. A method inhibiting corrosion of ferrous metals adds an effective amount of the corrosion inhibitor to a petroleum based material such as crude oil and liquid fuels such as gasoline, diesel fuel, and aviation fuel.

Abstract: N-alkyl, N-alkenyl, N-cycloalkyl, N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, are obtained from a reaction process in the absence of solvent at a temperature range from 30 to 180° C. and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, are obtained inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. A method inhibiting corrosion of ferrous metals adds an effective amount of the corrosion inhibitor to a petroleum based material such as crude oil and liquid fuels such as gasoline, diesel fuel, and aviation fuel.

Abstract: The present invention discloses a resin infusion type water-permeable pavement material, comprising: a basic bituminous mixture, waterborne epoxy resin, a waterborne curing agent, a toughening agent and a diluting agent; and the basic bituminous mixture comprises coarse aggregate, fine aggregate, fillers and high-viscosity modified bitumen. A water-permeable pavement prepared by the material provided by the present invention has excellent interface bonding capability, favorable road utilization performance and functional performance.

Abstract: A sprayable coating composition, and method of application, for coating asphalt paving surfaces. In the coating composition, a low bulk density aggregate material of sprayable particle size is suspended in a sprayable asphalt emulsion in an amount sufficient to increase the micro-texture surface roughness of the cured coating.

Abstract: Asphaltic or bitumen emulsions designed for road construction applications. Construction of full depth pavements with emulsions and the related process disclosed herein is now possible at temperatures below about 160° F. to 180° F. by the unique and unexpected combination of emulsifier(s), surfactant(s) and optional break control agent(s), to form mixtures of emulsion plus break control agent and aggregates. The mixtures of emulsion plus break control agent and aggregates are then spread across the paving area. The spread mixture then breaks, sets and otherwise cures to a complete mass or mat suitable for the intended design application.

Abstract: A method for water-proofing underground structures (10) comprising: a step of injecting an expanding compound adjacent to the surface (10b) directed toward the outside of an underground structure (10) to be waterproofed in order to form at least two confinement portions (2); a step of injecting a diffusing compound (4) intended to harden adjacent to the surface (10a) directed toward the outside of the underground structure (10) and at a completion region (3) that is delimited by said at least two confinement portions (2).

Abstract: A method for forming a coating composition for coating a substrate comprising: blending an asphalt material; a polymer that is not a polyol; and a polyol wherein the polyol has a molecular weight of about 1000 to about 5000. Also, included are coated articles that comprise a substrate coated with a layer of the coating composition.

Abstract: An acid modified asphalt binder is combined with an emulsifier solution to produce an emulsified asphalt binder. The acid modified asphalt binder may be formed by combining an asphalt binder, a phosphorous-based acid, and, optionally, a polymer modifier. The emulsifier solution may be produced by forming an aqueous solution of an amine and a phosphorous-based acid, which forms an aqueous solution comprising an amine phosphate. The emulsified asphalt binder may be combined with an aggregate to form a paving material. In other examples, the emulsified asphalt binder may be used alone, for example in a chip seal application, or in a diluted form, for example in a fog seal application.

Abstract: Reflective bituminous coating compositions are within the disclosure herein that include a bituminous component; a petroleum distillate solvent, a fibrous material; a reflective metallic filler component; and expanded glass granules.

Abstract: A hot-mix asphalt paving mixture includes the use of a hard, angular, non-carbonate ½? minus igneous crushed rock, washed rounded No. 100 sieve silica sand particles, ½? minus recycled asphalt pavement particles, and a performance-graded bituminous liquid asphalt binder, thereby to produce an environmentally-friendly hot asphalt mixture that is laid with minimal compaction effort, and without the use of conventional compaction-aiding additives that chemically alter the viscosity of the liquid asphalt binder. During compaction, the rounded silica sand particles react with the igneous rock particles as a mechanical compaction aid, thereby allowing the angular particles to achieve proper aggregate interlock with minimal compactive effort. The aggregate composition comprises about 75% igneous crushed rock, about 5% processed round silica sand particles, about 20% recycled asphalt pavement, and about 5% binder. The resultant pavement is skid-resistant, resists rutting, and has a permanent dark color.

Abstract: This invention encompasses asphalt cement emulsions, as well as methods for preparing a pre-treated rubber-modified asphalt cement emulsions and methods for coating industrial surfaces using asphalt cement emulsions.

Abstract: An ordinary temperature construction type hot asphalt mixture is provided which comprises an aggregate, an asphalt, a lubricative solidification material and an alkaline additive material that are mixed together, wherein the lubricative solidification material contains a fatty acid and a resin acid with a ratio of 99.5:0.5 to 80:20 as a weight ratio of “fatty acid:resin acid”.

Abstract: A process allows working with viscous petroleum referred to as “heavy and extra heavy crudes” such as 20 to 6° API by adding an appropriate biosurfactant to an aqueous phase containing a biosurfactant active compound. The surfactant can be alkyl glycosides, glycerol esters and alkyl betaines. The result is the formation of a stable crude/water emulsion even with salt present therein.

Abstract: A method to reclaim and purify an oil bound to a substrate, and a reclaimed oil obtained thereby having, relative to the oil in the bound liquid in the substrate, a lower aromatic content, improved rheological properties, improved handling properties, or a combination thereof.

Abstract: Reflective bituminous coating compositions are within the disclosure herein that include a bituminous component; a petroleum distillate solvent, a fibrous material; a reflective metallic filler component; and expanded glass granules.

Abstract: Among the various aspects of the present disclosure is the provision of a methods and compositions for the installation and formation of roads and construction materials. The use of base materials and stabilizing agent provide affordable roads and construction materials.

Abstract: One embodiment provides a process for preparing an asphalt-coated crumb rubber composition that meets the specification set forth in ASTM D80-02 or deviations thereof which may be established by the specifying agency from time to time. The process generally comprises obtaining asphalt of different penetration grades, combining the asphalt of each grade with preselected chemicals to form separate premixed components, blending the premixed components together under predetermined conditions to form, upon curing, an asphalt-coated crumb rubber composition that meets certain physical requirements for asphalt-rubber binder (ARB), such as those set forth in ASTM D8-02. Advantageously, the resulting asphalt-coated crumb rubber composition not only meets the physical requirements of ARB used in road paving but also has improved dispersion of the rubber, such as dispersion of the rubber in an oil-in-water emulsion of an asphalt.

Abstract: The cationic asphalt material of the present invention has minimal tracking, fast drying bonding to material and allows for quick turn around in road construction. It has been designed as a joint sealer that can be used successfully as a tack coat or fog seal. The fast drying bonding material allows plant mix asphalt to be put clown in minutes from initial application.

Abstract: The present invention relates to a process for producing cold bituminous mixes, comprising the following successive steps: a. in a mixer, coating, at ambient temperature, all of the solid mineral fractions with all of the binder in emulsion, and optionally a portion of fluxing agent, over a time interval T sufficient to observe a coating of the mix; then b. at the end of the time interval T, adding the remaining amount of fluxing agent, over a time interval t, such that the T/t ratio is greater than 2, the other mixing conditions of steps a) and b) being otherwise substantially identical. The present invention also relates to cold bituminous mixes, capable of being obtained by the process according to the invention and the use thereof for the production of wearing courses, the production of emulsion-stabilized gravels or the production of storage-grade mixes.

Abstract: One embodiment provides a process for preparing an asphalt-coated crumb rubber composition that meets the specification set forth in ASTM D80-02 or deviations thereof which may be established by the specifying agency from time to time. The process generally comprises obtaining asphalt of different penetration grades, combining the asphalt of each grade with preselected chemicals to form separate premixed components, blending the premixed components together under predetermined conditions to form, upon curing, an asphalt-coated crumb rubber composition that meets certain physical requirements for asphalt-rubber binder (ARB), such as those set forth in ASTM D8-02. Advantageously, the resulting asphalt-coated crumb rubber composition not only meets the physical requirements of ARB used in road paving but also has improved dispersion of the rubber, such as dispersion of the rubber in an oil-in-water emulsion of an asphalt.

Abstract: A sprayable coating composition, and method of application, for coating asphalt paving surfaces. In the coating composition, a low bulk density aggregate material of sprayable particle size is suspended in a sprayable asphalt emulsion in an amount sufficient to increase the micro-texture surface roughness of the cured coating.

Abstract: The invention relates to asphalt emulsions comprising an asphalt component selected from the group consisting of a solvent extracted asphalt, an oxidized asphalt, and combinations thereof. The invention also relates to products made therefrom, including fibrous mats comprising a fiber component, such as glass fibers, and a binder component comprising an asphalt emulsion. The invention further relates to wet-laid processes for manufacturing fibrous mats and that employ the use of an amphoteric surfactant, which is applied to a wet fiber web prepared from a dispersion of fiber components, such as glass fibers.

Abstract: Asphalt emulsifiers and asphalt emulsions comprised of alkali metal or ammonium salts of a biomass pyrolysis oil, such as a pyrolytic wood tar oil, where the biomass pyrolysis oil is used as made from a pyrolysis process with only water washing, are disclosed.

Abstract: The invention provides a bituminous composition, a process for preparing a bituminous paving composition and process for bituminous paving having lower mixing, paving, and compaction temperatures than for conventional hot-mix paving while retaining sufficient performance characteristics of conventional hot-mix paving. The inventive paving process comprises the steps of injecting a foamable solution comprising a lubricating substance into a heated, asphalt binder to provide a heated, foamed mixture; adding the heated, foamed mixture to a suitable, heated aggregate; further mixing the heated, foamed mixture and heated aggregate to coat the heated aggregate with the heated, foamed, asphalt binder to form a heated paving material; supplying the heated paving material to a paving machine; applying the heated paving material by the paving machine to a surface to be paved; and compacting the applied paving material to form a paved surface.

Abstract: A process for treating a tailings stream comprises (a) contacting (1) a gelling agent and (2) an activator with said tailings stream to produce a gel; (b) entrapping solids including sand and clay, and other solid particles with the gel; and (c) allowing the gel to strengthen and solidify to produce a trafficable deposit; wherein the tailings stream comprises water and solids, which solids comprise sand, clay and other solids particles, and wherein 5% by volume to 100% by volume of the solids have a particle size less than 0.05 mm, based on the total volume of the solids. The process may further comprises spreading the gel produced in step (a) or the trafficable deposit produced in step (c) over a surface. The present invention is particularly useful to treat tailings streams produced in processes to extract bitumen from oil sands ores.

Abstract: The present invention relates to a method of improving the incorporation of recycled bituminous products by using at least one surfactant as an alternative to the known rejuvenating oils, for the preparation of asphalt mixes containing recycled bituminous products. The use of such alternative surfactant(s) results in better mechanical properties of the asphalt mix, while using smaller amounts of fresh bitumen and greater amounts of recycled bituminous products.

Abstract: One embodiment provides a process for preparing an asphalt-coated crumb rubber composition that meets the specification set forth in ASTM D80-02 or deviations thereof which may be established by the specifying agency from time to time. The process generally comprises obtaining asphalt of different penetration grades, combining the asphalt of each grade with preselected chemicals to form separate premixed components, blending the premixed components together under predetermined conditions to form, upon curing, an asphalt-coated crumb rubber composition that meets certain physical requirements for asphalt-rubber binder (ARB), such as those set forth in ASTM D8-02. Advantageously, the resulting asphalt-coated crumb rubber composition not only meets the physical requirements of ARB used in road paving but also has improved dispersion of the rubber, such as dispersion of the rubber in an oil-in-water emulsion of an asphalt.

Abstract: An asphalt binder includes asphalt and an asphalt binder modifier, which includes bio-oil. The asphalt binder can include a carboxyl additive. The asphalt can optionally include polymer-modified asphalt. An asphalt material includes mineral aggregate, an asphalt material binder including asphalt, and an asphalt binder modifier including bio-oil. A method for making the asphalt binder is disclosed. The asphalt material includes asphalt pavement and roofing shingles. The asphalt binder can be emulsified with water and a surfactant for use as a weatherproofing sealant or as an adhesive.

Abstract: The present invention is related to asphalt and asphalt-mineral compositions including at least one cationic organosilicon compound selected from a group consisting of: Y3-aSi(R1a)R2N+R3R4R5X?, Y3-aSi(R1a)R2P+R3R4R5X?, Y3-aSi(R1a)R2ZX?; or mixtures thereof, wherein in each formula Y is independently selected from a group consisting of OR, O(CH2CH2O)nH, (CH3OCH2CH2O), and (CH3CH2OCH2CH2O); a has a value selected from 0, 1 or 2; n is a value from 1 to 10; R is C1-C4 alkyl; R1 is either methyl or ethyl; R2 is C1-C4 alkylene group; R3, R4 and R5 are each independently selected from a group consisting of C1-C22 alkyl wherein at least one such group has more than 8 C-atoms, —CH2C6H5, —CH2CH2OH, —CH2OH and —(CH2)yNHC(O)R6 wherein y has a value of from 2 to 10 and R6 is a C1-C12 perfluoroalkyl radical; X is chloride, bromide, fluoride, iodide, acetate or tosylate; and Z is pyridinium ring of formula C5H5N+.

Abstract: An asphalt emulsion available for high performing, trackless tack coat applications. The tack coat can be used with hot mix asphalt, warm mix asphalt or cold mix asphalt to provide a tack coat on an existing bituminous or concrete pavement surface. The tack coat can also be used for repair of potholes, utility cuts, and general pavement patching areas.

Abstract: Bituminous paving mixtures containing lubricating agents or additives may be prepared at hot mix temperatures and cooled, paved and compacted at temperatures 10-55° C. lower than the hot mix temperatures. The increased temperature range between the hot mix temperatures and the paving and compacting temperatures is facilitated by the improved compacting properties of the paving mixture when it includes the lubricating agents or additives.

Abstract: An asphalt binder includes asphalt and an asphalt binder modifier, which includes bio-oil. The asphalt binder can include a carboxyl additive. The asphalt can optionally include polymer-modified asphalt. An asphalt material includes mineral aggregate, an asphalt material binder including asphalt, and an asphalt binder modifier including bio-oil. A method for making the asphalt binder is disclosed. The asphalt material includes asphalt pavement and roofing shingles. The asphalt binder can be emulsified with water and a surfactant for use as a weatherproofing sealant or as an adhesive.

Abstract: The cationic asphalt material of the present invention has minimal tracking, fast drying bonding to material and allows for quick turn around in road construction. It has been designed as a joint sealer that can be used successfully as a tack coat or fog seal. The fast drying bonding material allows plant mix asphalt to be put clown in minutes from initial application.

Abstract: Bituminous paving mixtures containing lubricating agents or additives may be prepared at hot mix temperatures and cooled, paved and compacted at temperatures 10-55° C. lower than the hot mix temperatures. The increased temperature range between the hot mix temperatures and the paving and compacting temperatures is facilitated by the improved compacting properties of the paving mixture when it includes the lubricating agents or additives.