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| Number | Title | Issue Date |
| 8133316 | Process for preparing an asphalt mixture A process for preparing an asphalt mixture from recycled asphalt pavement (RAP), virgin aggregate, filler and first and second binder materials, is disclosed. The process comprises steps of transporting RAP through a first drum; transporting virgin aggregate through... | 03/13/2012 |
| 8075681 | Process for producing two-phase mixes 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... | 12/13/2011 |
| 8062413 | Utilization of heavy oil fly ash to improve asphalt binder and asphalt concrete performance Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include heavy oil fly ash that contains more than about 90 wt. % carbon. The compositions are capable ... | 11/22/2011 |
| 7967905 | Process for mixing modified bitumen by extrusion Provided is a method of mixing a modified bitumen composition and feeding one or more polymeric materials to an extruder, together with asphalt fed at more than one location along a length of the extruder. Improved mixing and elimination of asphalt melting in the pr... | 06/28/2011 |
| 7691195 | Compositions of pellets of tacky, deformable material dispersed within a fine flowable material and methods of making the compositions Compositions of discrete substances that are capable of being mixed together to form a composite material and methods for making the compositions are disclosed. The composition includes a plurality of pellets of a tacky, deformable material at an ambient temperature... | 04/06/2010 |
| 7662226 | Pretreated aggregate for hotmix asphalt concrete applications and other related applications A process of producing an asphalt concrete with enhanced performance is provided by utilizing a primer comprising uintahite and an augmenter. The primer is added to a hot aggregate with a surface temperature of at least 250 deg. F. prior to addition of an asphalt-de... | 02/16/2010 |
| 7597754 | Asphaltic compositions and methods of their manufacture 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 standa... | 10/06/2009 |
| 7417082 | Modified asphalt binder material using crosslinked crumb rubber and methods of manufacturing the modified asphalt binder 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 rub... | 08/26/2008 |
| 7387674 | Method for solidifying soil and industrial waste, and solidified materials prepared thereby 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 ... | 06/17/2008 |
| 7374816 | Prefabricated membrane based on modified polyurethane bituminous binder and process for production 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 composi... | 05/20/2008 |
| 7357562 | Counter-flow drum mixer asphalt plant with two stage mixing zone A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing... | 04/15/2008 |
| 7335251 | Method for enhancing the physico-chemical properties of bitumen compositions and novel bitumen compositions with enhanced properties and their uses 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 ... | 02/26/2008 |
| 7309390 | Strip-resistant asphalt paving composition and method for making the same The present invention is directed to a stripping-resistant asphalt paving composition that contains asphalt, aggregate, polyphosphoric acid, and an alkaline anti-stripping additive. ... | 12/18/2007 |
| 7306666 | Additives and method for reducing odor Additives and methods for reducing or eliminating odor in oil based media. The additives comprise an essential oil, an essential oil component, or mixtures thereof. ... | 12/11/2007 |
| 7279035 | Method of selecting a binder for a chipsealing process based on its adhesion index A method of selecting a binder for a chipsealing process is provided. This method includes measuring the Adhesion Index of at least one binder and selecting a binder with a desirable Adhesion Index for the chipsealing process. The selected binder should have an Adhe... | 10/09/2007 |
| 7275890 | Cold in-place recycling of bituminous material A method of reconstructing a road is provided. This method includes taking representative cores of the road, analyzing the cores, selecting a substantially solvent-free emulsion based on climate history, mixing the emulsion and reclaimed asphalt pavement particles t... | 10/02/2007 |
| 7264667 | Pretreated aggregate for hotmix asphalt concrete applications and other related applications A process of producing an asphalt concrete with enhanced performance is provided by utilizing a primer. The primer is added to a hot aggregate with a surface temperature of at least 250 deg. F. prior to addition of an asphalt-derived base binder. The primer forms a ... | 09/04/2007 |
| 7226501 | Process for the manufacture of a bitumen-aggregate mix suitable for road pavement 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 h... | 06/05/2007 |
| 7226500 | Additive for heating asphalt The invention provides an additive for heated asphalt that can further improve a peeling prevention effect between asphalt and aggregates. The invention relates to an additive which is added to heated asphalt containing a particular gallic acid ester with or combina... | 06/05/2007 |
| 7204310 | Methods of use settable drilling fluids comprising cement kiln dust Settable drilling fluids comprising an aqueous-based drilling fluid and cement kiln dust. Methods of cementing in a subterranean formation comprising: providing a settable drilling fluid comprising an aqueous-based drilling fluid and cement kiln dust, introducing th... | 04/17/2007 |
| 7144933 | Modified asphalt compositions A modified asphalt composition is provided comprising at least one plastomer, at least one elastomer, and asphalt. More specifically, a modified asphalt composition is provided comprising an oxidized polyethylene, a styrene-butadiene-styrene block copolymer, and asp... | 12/05/2006 |
| 7128780 | Process for producing building materials from raw paint sludge 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... | 10/31/2006 |
| 7118624 | Method for making a road base material using treated oil and gas waste material 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 materia... | 10/10/2006 |
| 7114843 | Method of manufacturing a bituminous coated aggregate mix A method of manufacturing a bituminous coated aggregate mix, said method comprising at least the following steps: (a) course aggregate are dried by heating; (b) an intermediate mix is formed by coating the course a... | 10/03/2006 |
| 7114875 | Method and apparatus for laying hot blacktop paving material A method of laying hot blacktop paving material, the method comprising a spreading step during which the material is spread onto a surface for receiving it, and immediately prior to the spreading step, a step of adding water during which water plus wetting agent is ... | 10/03/2006 |
| 7107916 | Method for recycling building materials A method of recycling building materials is described, including the steps of introducing the building material into a cement kiln or a boiler, and combusting a combustible portion of the building material as a fuel within the kiln or boiler. The noncombustible port... | 09/19/2006 |
| 7094283 | Bituminous product and process for preparing it 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 bitumi... | 08/22/2006 |
| 7077602 | Method and system for containment, such as a containment cap for solid waste constructed of modified asphalt The present invention is directed to a waste or environmental containment system that includes modified asphalt specifically designed for containment, and a system of installation that provides a seamless cap over the area to be contained. The modified asphalt of th... | 07/18/2006 |
| 7044630 | Counter-flow asphalt plant method A method for operating a counter-flow aggregate dryer for an asphalt plant in which primary aggregate materials are introduced into a first end of a horizontally rotating cylinder and travel to the second, discharge end of the cylinder through drying and combustion ... | 05/16/2006 |
| 7037955 | Additives and methods for reducing odor Additives and methods for reducing or eliminating odor in oil based media. The additives comprise an essential oil, an essential oil component, or mixtures thereof. ... | 05/02/2006 |
| 6971819 | Electrically conductive pavement mixture An electrically conductive paving system that has enhanced conductivity of the conductive graphite/asphalt layer. This is achieved by incorporating into the paving mixture a blend of two naturally occurring crystalline flake graphites, one being coarse (generally la... | 12/06/2005 |
| 6966723 | Binder/aggregate/container systems A road repair kit and/or bridge joint repair kit is comprised of an outer container, a measured amount of binder material and a separate and distinct measured amount of aggregate material. In one preferred embodiment of this invention, the binder material is in a fi... | 11/22/2005 |
| 6953501 | Wood treatment composition and method of use A wood treatment composition for the preservation of wood comprises a mixture of creosote and a polymer which is miscible with the creosote at about 200° F. and does not substantially phase-separate when the wood treatment composition is under ambient conditions. T... | 10/11/2005 |
| 6951686 | Architectural concrete and process to make same A concrete article comprised of concrete having therein a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester. The concrete article is made by mixing concrete, water and a reinforcing polymer that has a s... | 10/04/2005 |
| 6929393 | Asphalt production plant An asphalt production plant includes an asphalt binder storage tank, a mixer for mixing asphalt binder and aggregate materials, an asphalt binder pumping system for conveying asphalt binder to the mixer and an asphalt binder metering system for controlling the rate ... | 08/16/2005 |
| 6863724 | Sulfur additives for paving binders and manufacturing methods Sulfur, useable in as an additive to asphalt in the preparation of asphalt binders can be plasticized by addition of carbon and further treated with amyl acetate. This plasticized sulfur can be formed into solid particles and then added to asphalt as either a minori... | 03/08/2005 |
| 6846354 | Process and system for production of a warm foam mix asphalt composition The invention describes a process for preparing a warm mix asphalt composition by mixing an aggregate grain material with a soft binder, and adding a hard binder to the mixed aggregate grain material. The hard binder is foamed in a foaming process before it is intro... | 01/25/2005 |
| 6808558 | Bituminous product and process for preparing it 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 bitumi... | 10/26/2004 |
| 6802897 | Biodiesel sulfur slurry A slurry mixture of sulfur in a liquid carrier comprising an ester derived from vegetable oils or animals fats such as biodiesel is disclosed. Also disclosed is a method of preparing a mixture of asphalt, polymer and sulfur comprising blending together, at asphalt b... | 10/12/2004 |
| 6790395 | Method for producing a thermoplastic filler A method for producing a thermoplastic filler for eliminating surface damage to concrete or asphalt surface is disclosed which includes mixing stone chips, sand, a powdered material and a bituminous binding agent to a homogenous mixture which is in constant motion a... | 09/14/2004 |
