Abstract: The present disclosure includes a process for isolating the carboxylic acids portion of a material stream and reacting it with a metal source to product a blend of metal carboxylate species which are anticipated to be effective H2S scavenging chemicals. In one embodiment, an “unrefined” or minimally refined acid stream in the production of a metal carboxylate-based H2S scavenger, which is very attractive to use because the resultant metal carboxylate product will have essentially identical hydrogen sulfide scavenging capabilities as an analogous “pure” metal carboxylates while retaining the requisite oil solubility and stability.

Abstract: Systems and methods for performing repairs to a longitudinal joint are disclosed. In certain methods, a pavement surface having a longitudinal joint formed by two adjacent pavement passes is disclosed. Milling out a section of a substrate that comprises the longitudinal joint is also disclosed. Also disclosed is applying a void reducing asphalt membrane to the surface of the milling slot. Hot mix asphalt may be used to fill milling slot with void reducing asphalt membrane applied.

Abstract: Embodiments of the present disclosure relate to an arrangement for inductively supplying energy and a method for manufacturing the arrangement. The method includes: a transmitter coil being on-site embedded in or on top of a magnetizable asphalt mixture below a surface of a drivable civil structure and configured to provide a magnetic field to transfer energy to a receiver coil. The magnetizable asphalt mixture includes an asphalt binding substance and soft magnetic particles, and a volume fraction of the soft magnetic particles is not smaller than 35% of a total mixture volume of the magnetizable asphalt mixture.

Abstract: The present disclosure provides for compositions comprising fumed silica. In some embodiments, the compositions comprising fumed silica may be a polymer-containing emulsion. In some embodiments, these compositions can be applied to a bituminous material (e.g., asphalt binder) in an effort to limit tracking of the bituminous material. In some embodiments, the bituminous material comprises a tack coat. In some embodiments, the bituminous material comprises a joint sealant (e.g., a bottom-up longitudinal joint sealant).

Abstract: In preferred embodiments, the present disclosure relates to wells and methods of using the same. The disclosure refers to a method for reducing noxious gas from a location. A location containing hydrogen sulfide may be identified. The well may be packed with a reactive structural component composed at least partially of a metal oxide. The well may be inserted into the location containing hydrogen sulfide. A gaseous mixture is extracted from the location. The reactive structural component reacts with the hydrogen sulfide to remove it from the gaseous mixture being extract. A metal sulfide is a byproduct of this process. Often, the location may be a landfill. The metal oxide may be iron oxide. The gas being extracted may be methane.

Abstract: Compositions containing fumed silica are disclosed herein, including emulsions and/or suspensions containing fumed silica and/or asphalt. In some embodiments, stable fumed silica suspensions can be prepared by adding a density modifier to the fumed silica and water.

Abstract: Compositions, methods, and products that improve the adhesion of markings, for example, thermoplastic road markings, to substrates are disclosed. In some embodiments, such thermoplastic road markings include, but are not limited to, striping, solid lines, broken lines, and other traffic safety or informative markings placed on a substrate.

Abstract: A penetrating base oil emulsion and a method of using the penetrating base oil emulsion to fill voids below the surface of an asphalt pavement. The penetrating emulation further being water resistant so as not to be washed off a pavement surface by water after being applied to the pavement. The penetrating base oil emulsion can also rejuvenate the surface of the asphalt.

Abstract: Asphalt binders and bituminous compositions comprising additives such as naphthenic acid esters. In certain embodiments the ester compounds may be useful as rheology modifiers for use in bituminous binders in road paving applications.

Abstract: Methods and compositions useful for cleaning the lines used during manufacturing processes are disclosed. In certain embodiments, the methods and compositions may be particularly useful in the manufacture of colored paints or coatings or in the use of colored paints or coatings, for example, in the manufacture of finished automobiles.

Abstract: Asphalt binders and bituminous compositions comprising oligomeric additives such as alkoxysilane oligomers compounds. In certain embodiments the oligomeric compounds may be useful as adhesion promoters for use with asphaltic bitumens and aggregates in road paving applications.

Abstract: A method of separating sludge which involves adding an insoluble mineral colloidal suspension into an industrial sludge to destabilize the industrial sludge and separating destabilized components of the industrial sludge. The insoluble mineral colloidal suspension includes magnesium hydroxide. In an alternative embodiment dry finely divided magnesium hydroxide can be added and then dispersed into an industrial sludge. Conventional flocculants and/or coagulants can also be added. Conventional physical separation processes can be used to separate the destabilized industrial sludge.

Abstract: Method of reducing calcite formation from solubilized calcium forms in aqueous effluent streams, including the reduction or removal of solubilized forms of nickel, selenium, sulfate, and magnesium.

Abstract: A void filling asphalt emulsion and a method of using the void filling asphalt emulsion to fill voids below the surface of an asphalt pavement. The void filling emulsion is prepared by forming a base asphalt emulsion having about 45 to 75 wt. % of an asphalt content, and combining the base asphalt emulsion with a surface tension reducing solution to produce a void filling asphalt emulsion that has about 25 to 50 wt. % of an asphalt content. When applied to an asphalt pavement the void filling emulsion penetrates into the asphalt pavement and fills voids in the asphalt pavement. The void filling emulation further being water resistant so as not to be washed off a pavement surface by water after being applied to the pavement.

Abstract: A method of sealing pavement joints includes the steps of dispensing a first band of void reducing joint composition on a substrate. Applying a first pass of pavement over at least a portion of the void reducing joint composition. Dispensing a second pass of void reducing joint composition on the substrate. Applying a second pass of pavement of the second band of void reducing joint composition and against an edge of the first pass of pavement.

Abstract: Methods of treating leachates in rock piles. Exemplary leachates include neutral aqueous leachates containing selenates and nitrates, said leachates being found in waste rock piles from coal mining operations. In certain embodiments, the method includes introducing an inert gas to the lower section of the rock pile, and allowing bacteria indigenous to the mining site to reduce the selenates and nitrates to selenium and nitrogen, respectively.

Abstract: A method for reducing the mutagenicity of polycyclic aromatic compounds (PAC's) having one or more bay regions which involves alkylating the PAC's with an alkylating agent in the presence of a catalyst to lower the mutagenicity down to as much as about 0.1. The resulting alkylated polycyclic aromatic compounds retain their physical and chemical properties for safe industrial use including as rubber processing oils, inks, etc.

Abstract: Asphalt binders and bituminous compositions comprising additives such as naphthenic acid esters. In certain embodiments the ester compounds may be useful as rheology modifiers for use in bituminous binders in road paving applications.

Abstract: A method of sealing pavement joints includes the steps of dispensing a first band of void reducing joint composition on a substrate. Applying a first pass of pavement over at least a portion of the void reducing joint composition. Dispensing a second pass of void reducing joint composition on the substrate. Applying a second pass of pavement of the second band of void reducing joint composition and against an edge of the first pass of pavement.

Abstract: A method for reducing the mutagenicity of polycyclic aromatic compounds (PAC's) having one or more bay regions which involves alkylating the PAC's with an alkylating agent in the presence of a catalyst to lower the mutagenicity down to as much as about 0.1. The resulting alkylated polycyclic aromatic compounds retain their physical and chemical properties for safe industrial use including as rubber processing oils, inks, etc.