| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 106281100 |
With filler, dye or pigment
| 31 |
| 106277000 |
Bituminous emulsion
| 22 |
| 106284400 |
Nitrogen containing | 5 |
| 20080308007 | Method for Preparing Bitumen Base - The invention concerns a method for preparing a bitumen base, including the following essential steps: a) introducing a bitumen in a container equipped with mixing means, and bringing the bitumen to a temperature of 120° C. to 300° C.; b) introducing at least one chemical blowing additive into the container, and mixing, said chemical blowing additive being of general formula Ar1-R—Ar2 ( | 12-18-2008 |
| 20110041732 | PROCESS FOR MANUFACTURING ASPHALT - A process for manufacturing asphalt is disclosed. The process comprises the steps of: (i) heating bitumen; (ii) heating aggregate; and (iii) mixing the hot bitumen with the hot aggregate in a mixing unit to form asphalt. From 10 to 200 wt % of sulphur, based upon the weight of the bitumen, is added in at least one of the steps (i), (ii) or (iii) and from 0.1 to 20 wt % of a compound of formula A, based upon the weight of the bitumen, is added in at least one of the steps (i), (ii) or (iii). R | 02-24-2011 |
| 20130074729 | WARM MIX ASPHALT BINDER COMPOSITIONS CONTAINING LUBRICATING ADDITIVES - The present invention provides a functionally dry warm mix asphalt binder composition modified with lubricating agents or additives that can be mixed with aggregate and compacted at temperatures substantially below asphalt binder compositions that do not contain the disclosed lubricating additives. | 03-28-2013 |
| 20140083331 | PREPARATION AND USES OF BIO-ADHESIVES - The present application relates generally to bio-adhesive components isolated from bio-oil prepared from animal waste, methods of preparation of the bio-adhesive components and uses thereof. Such uses include, but are not limited to, asphalt bio-binders, bio-adhesion promoters, asphalt bio-rejuvenators, asphalt bio-extenders, bio-asphalt as well as uses in roofing, soil stabilization, crack and joint sealing and flooring adhesives. | 03-27-2014 |
| 20140366774 | ADDITIVES FOR INDUSTRIAL BITUMEN - The present invention relates to industrial bitumen compositions comprising at least one industrial bitumen, and at least one surface-active agent for reducing the viscosity of said bitumen. The present invention also relates to the use of said industrial bitumen compositions for the preparation of industrial bitumen-containing products, as well as the products thus obtained. | 12-18-2014 |
| 106274000 |
With sulfurizing or sulfonating agent | 5 |
| 20080210127 | 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 composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion:
| 09-04-2008 |
| 20130298799 | BITUMINOUS COMPOSITION WITH REDUCED EMISSION OF HYDROGEN SULFIDE - The present invention relates to a bituminous composition comprising from 20 wt % to 99.9 wt % of bitumen, from 0.01 wt % to 10 wt % of a maleimide compound and from 0.5 to 75 wt % of sulphur, by weight of the bituminous composition. The present invention also relates to an asphalt composition comprising said bituminous composition and filler and/or aggregate. The bituminous and asphalt compositions of the present invention exhibit significantly reduced H | 11-14-2013 |
| 20090145330 | Method for Reducing Hydrogen Sulfide Evolution from Asphalt - Hydrogen sulfide evolution from asphalt may be reduced or eliminated using an additive to act as a scavenger. Zinc oxide, when present in the form of nano-particles is an effective component is preventing or mitigating the evolution of hydrogen sulfide from asphalt. Zinc sulfonate may also be used. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b) | 06-11-2009 |
| 20100288165 | PROCESS FOR MANUFACTURING AN ASPHALT PAVING MIXTURE - A process for manufacturing an asphalt paving mixture is disclosed. The process comprises the steps of:
| 11-18-2010 |
| 20110290151 | METHOD PROVIDING FOR A LOW RELEASE OF H2S DURING THE PREPARATION OF SULFUR-EXTENDED ASPHALT - A method of making a sulfur-extended asphalt mixture with a minimum of hydrogen sulfide gas release into the atmosphere by using sulfur granules with specific physical properties and which are made by successively coating a starting sulfur seed particle with liquid sulfur that is solidified between coatings to thereby build up the a sulfur particle of a desired size. The sulfur granules are used to in the preparation of a sulfur, bitumen and aggregate mixture to provide the sulfur-extended asphalt. | 12-01-2011 |
| 106276000 |
Rock asphalt | 4 |
| 20090013903 | Barrier Based Fuel Resistant Binder - A fuel resistant binder is characterized by the addition of a carrier curing agent to a modified, unmodified or emulsified asphalt material formed of a mixture of hot, cold or emulsified asphalt and carrier and activator materials. The carrier curing agent preferably is a polyurethane moisture curing solution. A cross-linking material and aggregate are also mixed with the binder to form a material suitable for patching cracks and holes in pavement and the like. The activator assists the polymer material in linking with the asphalt while the carrier prevents the formation of gel or lumps within the asphalt. The carrier curing agent resists the penetration of fuel into the binder. | 01-15-2009 |
| 20090050016 | SAB (shale ssphalt binder) - The material component of this product is shale crude oil that is extract from shale rock. | 02-26-2009 |
| 20100206196 | METHOD FOR PRODUCING BITUMINOUS PAVING COMPOSITIONS - A bituminous composition with improved paving performance, comprising a high-concentration-emulsifier bituminous emulsion is disclosed. The high-concentration-emulsifier bitumen emulsion has a higher content of surfactant than the conventional bitumen emulsion, thus facilitating the use of low levels of emulsion in the finished bituminous paving composition. Additionally, the high-concentration-emulsifier bitumen emulsion has superior surfactant dispersion property compared to the inverted bitumen dispersion, thereby enhancing the mixing and coating performance of the bituminous composition. The disclosed bituminous compositions may be used in a pavement construction at a much lower temperatures range compared to the conventional hot-mix bituminous composition, yet it develops adhesive strength and load-bearing strength properties at rates comparable to those of hot mix bituminous paving compositions. | 08-19-2010 |
| 20120204761 | METHOD AND PLANT FOR PRODUCING ASPHALT MIXTURE - The invention relates to a method and a plant for producing asphalt mixture and is directed in particular to the recycling of recovered asphalt. In order to achieve recycling of up to 100% recovered asphalt and to produce an asphalt mixture with the required quality, it is provided according to the invention that at least the drying and heating of the asphalt granulate and/or aggregates are carried out in a low oxygen atmosphere. The low oxygen atmosphere is achieved by supplying low oxygen gases with an oxygen content of maximum 10%, preferably with an oxygen content of maximum 5%. The conveyance of the heated and dried asphalt granulate and/or aggregates, the siloing and mixing with bitumen to form a new, incorporation-ready asphalt mixture also usefully take place in a low oxygen atmosphere. | 08-16-2012 |
| 106284300 |
Metal containing | 3 |
| 20120240821 | UV-SHIELDING MATERIAL BASED ON MG-AL LAYERED DOUBLE HYDROXIDE AND ITS APPLICATION IN ANTI-AGEING ASPHALT - The present invention relates to a preparation method for a UV-shielding material based on Mg—Al Layered Double Hydroxide. The material with multi-layered overlay structure is made from Mg—Al double hydroxide layers and interlayer carbonate, its molecular composition is: Mg | 09-27-2012 |
| 20130160675 | REFLECTIVE ASPHALT COMPOSITION - An asphalt composition comprises aggregate, binder coating the aggregate and reflective particles embedded in the binder. In various embodiments, the binder may comprise one or more of clear bitumen, bio-bitumen or a polymer modified bitumen for cold application. The binder may comprise a glare control additive The reflective particles may be metal or metal oxide. | 06-27-2013 |
| 20140026785 | SYNTHETIC MODIFIER FOR HOT ASPHALTIC MIXES FOR ROAD PAVING AND METHOD OF MAKING SAME - A synthetic modifier known as JSSM for hot asphaltic paving mixes is formed of refinery bitumen, of which one example is 60/70 penetration grade, and clay and/or sand that is siloxane bonded. Another component may be a UV absorber. The synthetic modifier is added to refinery bitumen to produce a paving asphalt cement. | 01-30-2014 |
| 106284100 |
Phosphorus containing | 3 |
| 20100186629 | Antioxidant Treatment Of Asphalt Binders - A combination of antioxidants and method of incorporating the antioxidants into an asphalt binder to make a modified asphalt binder are described. The antioxidants comprise a thioester and an aldehyde. The aldehyde and thioester, in a ratio between about 1:100 and about 100:1, are added to an asphalt binder. An acidic catalyst is also added in a concentration between about 0.1 wt % and about 18 wt % of the asphalt binder. The antioxidants, asphalt binder, and catalyst are mixed at a temperature between about 85° C. and about 135° C. for a time between about 30 minutes and about 6 hours. The antioxidants are capable of improving the performance grade of the asphalt binder. The modified asphalt binder possesses superior resistance to oxidative age hardening compared to other modified asphalt binder compositions that incorporate various antioxidants. | 07-29-2010 |
| 20110017096 | WARM MIX ASPHALT BINDER COMPOSITIONS CONTAINING LUBRICATING ADDITIVES - The present invention provides a functionally dry warm mix asphalt binder composition modified with lubricating agents or additives that can be mixed with aggregate and compacted at temperatures substantially below asphalt binder compositions that do not contain the disclosed lubricating additives. | 01-27-2011 |
| 20120006227 | POLYPHOSPHORIC ACID COMPOSITIONS HAVING A REDUCED VISCOSITY - Polyphosphoric acid compositions having a reduced viscosity compared to neat polyphosphoric acid. The viscosity of the polyphosphoric acid is reduced by combining the polyphosphoric acid with an additive that reduces the viscosity of the polyphosphoric acid composition. In one embodiment, additives that can cause solvation and/or partial neutralization of the polyphosphoric acid without the addition of water may be used. The reduced viscosity polyphosphoric acid may be used, for example, as an additive in asphalts used in road pavements. | 01-12-2012 |
| 106279000 |
With flux | 3 |
| 20130298800 | BITUMINOUS COMPOSITION WITH THERMOREVERSIBLE PROPERTIES - The invention relates to a method of making a theremorevsible bituminous composition. The method includes transferring an additive to a bitumen to form a mixture, and stirring the mixture until its appearance is homogenous. The additive can be an organogelator with general formula R″—(COOH) | 11-14-2013 |
| 20090249978 | PROCESS FOR PRODUCING AN IMPROVED ASPHALT USING POLYPHOSPHORIC ACID WITH AIR BLOWING - A process is provided for producing an improved asphalt composition is air blown for a reduced period of time prior to addition of polyphosphoric acid. The air blowing process is performed at temperatures and using air volumes typically used for air blown asphalt. The process may be performed using neat asphalt, or it may be used on mixtures of asphalt with flux, slop, or mixtures of flux and slop. After the initial air blowing period, polyphosphoric acid is added to the asphalt. The polyphosphoric acid may be added while the asphalt is at temperature, or the asphalt may be allowed to cool slightly before the addition of the polyphosphoric acid. Following addition of the polyphosphoric acid, the asphalt may undergo further air blowing to obtain desired properties. | 10-08-2009 |
| 20140033951 | ASPHALT MIXTURE WITHOUT VIRGIN BITUMEN BASED ON RECYCLED MATERIALS - An asphalt mixture includes bitumen partially or in totality proceeding from construction materials, the bitumen having been regenerated using a fatty acid ester which is obtained from esterified vegetable oil. | 02-06-2014 |
| 106278000 |
With solvent or dispersing medium | 3 |
| 20100170417 | CUTBACK ASPHALT COMPOSITIONS AND PRODUCTS COMPRISING AN EXTENDER DERIVED FROM TALL OIL, AND METHODS FOR MAKING AND USING SAME - Cut back asphalt compositions and product wherein the cutting solvent comprises a tall oil based solvent and optionally other renewable solvents. | 07-08-2010 |
| 20130174759 | ROAD MATERIAL COMPOSITIONS, SYSTEMS AND METHODS OF MAKING - Road material compositions, systems for uses and methods of making are provided in which the road material includes an asphaltene mixture. The asphaltene mixture generally includes at least one of the following: a surfactant, peptizer, stabilizer and light end hydrocarbons. The asphaltene mixture is combined with waste cuttings from a drill site and an aggregate to form a road-based material. The road-based material, thus, re-uses drill cuttings waste avoiding its disposal and the high costs associated with disposal. The road-based material is suitable for high and low traffic roads, oil roads, black top, as a patch mix and as a road base. The asphaltene mixture and the road-based material when formed are capable of immediate use as well as long-term storage. The asphaltene mixture and road-based material may both be readily modified for small and large scale production. | 07-11-2013 |
| 20160152830 | Methods and Systems for Producing Ethanol Based Warm Foam Mix Asphalt | 06-02-2016 |
| Entries |
| Document | Title | Date |
|---|
| 20080210126 | Antioxidant treatment of asphalt binders - A combination of antioxidants and method of incorporating the antioxidants into an asphalt binder to make a modified asphalt binder are described. The antioxidants comprise a thioester and an aldehyde. The aldehyde and thioester, in a ratio between about 1:100 and about 100:1, are added to an asphalt binder. An acidic catalyst is also added in a concentration between about 0.1 wt % and about 18 wt % of the asphalt binder. The antioxidants, asphalt binder, and catalyst are mixed at a temperature between about 85° C. and about 135° C. for a time between about 30 minutes and about 6 hours. The antioxidants are capable of improving the performance grade of the asphalt binder. The modified asphalt binder possesses superior resistance to oxidative age hardening compared to other modified asphalt binder compositions that incorporate various antioxidants. | 09-04-2008 |
| 20080271639 | ADDITION OF SPENT ACTIVATED CARBON TO ASPHALT COMPOSITIONS AND TO COKING UNITS AS FEEDSTOCK OR QUENCHER - An asphalt mastic is prepared by combining spent activated carbon, that has not been regenerated, with liquid asphalt to achieve a composition that is useful for a variety of applications for which asphalt is used, including aggregate compositions and roofing materials. The activated carbon can also serve as a foaming initiator for the production of foamed asphalt. Still further, the activated carbon can be used as coking unit feedstock and as a quencher for a delayed coking unit. | 11-06-2008 |
| 20090038509 | REFLECTIVE CRACK RELEIF LAYER THAT IS PERMEABLE - A design method for making a bituminous mixture that is used to form a vapor-permeable layer of pavement is provided. This design procedure includes preparing one or more bituminous mixture test specimens, measuring the performance of these specimens, and selecting a desirable bituminous mixture for paving that is vapor-permeable based on the performance of the specimens. Another aspect of the present invention is the selected bituminous mixture, which includes aggregate and a bituminous binder. The aggregate should be selected such that no more than about 5% by mass of the aggregate and preferably no more than about 3.5% by mass of the aggregate is able to pass through a 75 μm sieve. The selected bituminous mixture should have an Air Permeability Value that is at least about 8 cm | 02-12-2009 |
| 20090084287 | INCORPORATION OF HEAT-TREATED RECYCLED TIRE RUBBER IN ASPHALT COMPOSITIONS - Recycled tire rubber, either in the presence or the absence of carbonaceous waste solids such as those from petroleum refinery operations, is first subjected to a heat treatment to release volatile materials and then combined with a liquid asphalt composition to achieve an asphalt mastic that is storage stable and of uniform consistency. | 04-02-2009 |
| 20100064937 | ASPHALT SHINGLE RECYCLING SYSTEM AND METHOD - A method of recycling asphalt roofing material is provided. The asphalt roofing material is delivered into a treatment chamber of a processor. A heat source is provided to the treatment chamber. Heat energy is transferred from the heat source to the asphalt roofing material to produce a heated product, and the heated product is removed from the treatment chamber. | 03-18-2010 |
| 20100199886 | Asphalt mix workable at ambient temperatures with only biodegradable solvents and method of manufacturing the same - An asphalt mix comprising a pine extract, the asphalt mix having low viscosity at ambient temperatures, and workable at ambient temperatures. The asphalt mix comprises asphalt cement, biodiesel, pine extract and an anti-stripping agent. The asphalt mix is an environmentally safe and “green” product. It comprises recycled asphalt product. The asphalt mix eliminates petroleum solvents beyond trace amounts used to denature biodiesel. The asphalt mix is used for patching at ambient temperatures. Safety precautions for heat and toxicity are not necessary for use. The asphalt mix comprises only solvents that are biodegradable. The biodegradable solvents are pine extract and biodiesel. | 08-12-2010 |
| 20100251935 | Blended Asphaltic Composition - A system for determining parameters and compatibility of a substance such as an asphalt or other petroleum substance uses titration to highly accurately determine one or more flocculation occurrences and is especially applicable to the determination or use of Heithaus parameters and optimal mixing of various asphalt stocks. In a preferred embodiment, automated titration in an oxygen gas exclusive system and further using spectrophotometric analysis ( | 10-07-2010 |
| 20100319578 | DEVELOPMENT PROCESS OF AN ECOLOGICAL BINDER SYSTEM FOR REFRACTORIES MIXES - The invention presented here deals with getting one of the raw materials of a new refractory binder system, the modified coal-tar pitch starting with heating the coal-tar, according to the specific distillation curve, later reaching a final distillation temperature of around 470° C., resulting in getting a final compound with a concentration of benzo(a)pyrene in the order of 600 ppm, together with the mixture of other raw materials for the composition of the binder system, such as anthracene oil (AO), soybean oil, linseed oil, castor oil, diesel oil, rapeseed oil, biodiesel, biopitch (Vegetable tar), paraffin, dextrin (corn starch), stearine, paraffin, vegetable waxes (cupuassu seed, shea nut, murumuru palm waxes), phenolic resins, furane resins, urethanes, epoxy, vinyl chloride, polyethylene and ethyl polyterephthalate. | 12-23-2010 |
| 20110041731 | Method Of Making An Asphalt Coating - The present invention involves the recycling of asphalt based roofing materials by comminuting the roofing material and subsequently separating a rock component from an asphalt component of the roofing material. The asphaltic component is separated into a feed stream having a mesh size of less than about 50 mesh while the rock component is separated into a feed stream having rocks in the size of 10 mesh or larger. A portion of the comminuted material may be recycled back for additional comminuting. The separated asphaltic component is placed in contact with the solvent to dissolve the asphalt in the asphaltic component providing a mixture of filler, fiber and dissolved asphalt. The liquid may then be applied to a surface of a wall to form a substantially continuous solidified film on the wall to provide waterproofing and an air barrier. | 02-24-2011 |
| 20110100257 | METHOD OF MAKING PAVING COMPOSITION WITHOUT ADDING ASPHALT CONTENT OIL OR MINIMIZING ADDITION - An improved method of making hot mix asphalt, without adding virgin asphalt concrete oil, includes several steps: adding gravel to a container; and heating and rotating the gravel in the container to a suitable temperature for creating the hot asphalt mix. While heated gravel rotates in the container, processed shingles, having a predetermined %/w of AC oil (20%/w on average), are added to a mixing auger along with at least 1 to 2 parts of rejuvenating oil per 100 parts of the processed shingles. The processed shingles and rejuvenating oil are mixed together for about 10 to 20 seconds in the mixing auger creating a slurry of rejuvenated shingles. The slurry of rejuvenated shingles from the mixer auger are then released into the heated and rotating gravel in the container, forming hot mix asphalt with a total oil content of between about 4%/w to 8%/w of the hot mix asphalt, advantageously without adding virgin asphalt concrete oil. | 05-05-2011 |
| 20120325114 | METHOD OF MANUFACTURING COLD ASPHALT, AND PRODUCT-BY-PROCESS FOR SAME - A heatless method of manufacturing cold asphalt, such as for road repair and construction, that may be easily produced at or near a job site. The method includes the introduction of RAP (recycled asphalt and a small amount of new asphalt), additive oil, and optional sand lime (limestone powder) into mixing apparatus. The mixing apparatus includes one hopper for RAP, a live feed for additive oil, and optional live feed for lime, conveyors, and a controller that is programmed to determine the correct proportion of RAP, oil, and optional lime The invention also includes a product-by-process in which cold asphalt mix is produced. The end product is essentially non-toxic with little to no VOCs and HAPs, has long shelf-life, and is produced, stored, used, and compacted at ambient temperature. | 12-27-2012 |
| 20120325115 | METHOD OF MANUFACTURING COLD ASPHALT AT A CONSTRUCTION SITE - A heatless method for producing cold asphalt at a job site, such as for road repair and construction. The method includes mixing apparatus having one hopper for receiving screened RAP (recycled asphalt and a small amount of new asphalt), a live feed for additive oil, and another for optional lime (limestone powder), conveyors in which to convey the RAP, 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), additive oil, and optional lime The mixing apparatus is compact in size to mount atop of a wheeled trailer for use at a construction site. The end product does not quickly harden, like that of hot asphalt, and is essentially non-toxic with little to no VOCs and HAPs, and is produced, stored, used, and compacted at ambient temperature. | 12-27-2012 |
| 20130055925 | ASPHALT MIX WORKABLE AT AMBIENT TEMPERATURES WITH ONLY BIODEGRADABLE SOLVENTS AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing an asphalt mix comprising: heating aggregate; introducing RAP to the aggregate; dry mixing the RAP and aggregate; forming a coating of AC on all aggregate during the step of dry mixing by extending the length in time of the dry mixing step; separately blending AC, biodegradable solvents, and anti-stripping agent to produce a blend; and wet mixing the blend into the RAP and aggregate mix. The biodegradable solvents are capable of making the asphalt mix workable at ambient temperatures and comprise pine extract and biodiesel. The length of the dry mixing is extended to at least about 35 seconds. The aggregate comprises coarse and fine virgin aggregate. RAP is about 40% of the final product. The asphalt mix is stockpiled and bagged. The method further comprises manipulating encrusted material on the outside of the stockpiled cold asphalt mix back into the stockpile. | 03-07-2013 |
| 20130220175 | RECYCLED ASPHALT PAVING FORMULATION AND METHOD OF MAKING SAME - An asphalt paving mixtures suitable for roadway paving is formulated by mixing very soft penetration asphalt having a penetration value on the order of 300 to 400 and a melt point of 110° F. with recycled or reclaimed asphalt roofing shingles and/or recycled or reclaimed asphalt pavement granule material having a much higher melt point and a much lower penetration value. 10% to 30% of the recycled or reclaimed asphalt material in the final mixture will bring the formulation into compliance with PG grade paving asphalt. The asphalt paving mixture may utilize recycled asphalt shingle granules of approximately 50 mesh in size and preferably between 10 and 50 mesh while a powder may be utilized that is sized below 50 mesh. | 08-29-2013 |
| 20140000479 | Bituminious Compositions and Methods for Reducing Toxic Emissions From Bituminious Compositions. | 01-02-2014 |
| 20140014000 | SYSTEM AND METHOD FOR MANUFACTURING ASPHALT PRODUCTS WITH RECYCLED ASPHALT SHINGLES - A method for manufacturing a processed asphalt suspension is provided. The method includes dry grinding shingle waste material to a particle size of less than 1 cm, forming ground recycled shingle material, introducing virgin asphalt into a heated slurry tank and mixing the ground recycled shingle material with the virgin asphalt in the heated slurry tank, forming a mixed asphalt slurry, introducing the mixed asphalt slurry into a wet grinding machine, and recovering a processed asphalt suspension comprising particles having a size no greater than about 200 microns. Roofing and paving products manufactured from the processed asphalt suspension are also provided. | 01-16-2014 |
| 20140299018 | Wet Process for Recycling Asphalt Shingle in Asphalt Binder for Asphalt Paving Applications - A method is disclosed for recycling asphalt roofing shingles and incorporating them into hot mix asphalt for use in applications such as asphalt pavement construction. Unlike previous methods, the asphalt from ground shingles is mixed with and becomes an integral component of the asphalt binder, instead of acting primarily as part of the aggregate. The asphalt content of the shingles mixes with heated asphalt binder to produce a single asphalt phase, and the asphalt from the shingles acts as asphalt in the final composite. | 10-09-2014 |
| 20140360406 | ASPHALT FOAM COLLAPSE TEST METHODS AND RELATED APPARATUS - The disclosure relates to asphalt foam collapse test methods and related apparatus for the measurement and determination of foamed asphalt binder quality, in particular warm-mix asphalt. Various asphalt binder/foam quality indicators can be measured according to the disclosure, such as bubble size distribution, bubble surface area, foam expansion ratio, foam half-life, foam index, as well as normalized parameters related to the same. The disclosed methods and apparatus permit the repeatable characterization and formation of foamed asphalt compositions, enabling the skilled artisan to form foamed asphalt/aggregate compositions of known, repeatable quality. This enhances the ability to form WMA foamed asphalt concrete with controlled and favorable properties selected for the particular environmental conditions (e.g., climate-, weather-, and/or traffic-related) where the concrete is to be used. | 12-11-2014 |
| 20140373749 | ASPHALT MATERIAL RECYCLING SYSTEM AND METHOD - An asphalt roofing material recycling system and method is used to recycle new and used asphalt materials, such as asphalt shingles, rolled roofing and tar paper that may include granules, fibers or other particles. The asphalt material is broken up and separated and then provided to a recycling vessel. When the recycling vessel is operated in a cooled mode, dry ice may be added along with the asphalt material to be recycled. The dry ice removes any moisture present and super-cools the material making it brittle and easier to chip and break up. The recycle vessel includes a number of devices as well as at least one horizontal mixer element which stirs the material and makes sure all material is ground. The resulting course to fine powder can be sorted by screening and stored as power or compressed into bricks or briquettes for later use in making various products. | 12-25-2014 |
| 20150059620 | HORIZONTAL MIXER FOR BITUMINOUS MIXTURES - A mixer for combining solid material such as asphalt shingles and/or recycled asphalt with asphalt binder. A method of using the mixer includes inputting large chunks of solid material to a first inlet of the mixer, inputting liquid asphalt binder to a second inlet of the mixer, passing the large chunks of solid material and the asphalt binder through a mixer chamber having a first stage and a second stage, the first stage comprising a helical screw and the second stage comprising a plurality of paddles, and obtaining a uniform mixture comprising small chunks of solid material and asphalt binder from the mixer. | 03-05-2015 |
| 20150128829 | DEVELOPMENT OF A RENEWABLE CARBON-BASED BIO-MODIFIER FOR ASPHALT CEMENT - A bio-modifier for asphalt is provided that comprises non-wood bio-char. In some embodiments, the bio-char comprises pyrolyzed biomass from a bio-fuel crop and/or comprises pyrolyzed grass. The asphalt modifier can improve the performance of asphalt compositions such as asphalt binder compositions and compositions comprising asphalt binder and aggregate. For example, the bio-modifier can improve the temperature susceptibility of asphalt binder compositions and increase the rutting resistance, moisture and cracking resistance of hot mix asphalt compositions. In addition, methods of preparing the bio-modifier composition, methods of preparing modified asphalts comprising the bio-modifier, and modified asphalt compositions are provided. | 05-14-2015 |
| 20160002464 | CATALYST FOR ASPHALT MIXTURE - An asphalt formulation showing increased lifespan without requiring thermal conditions is disclosed. The formulation exhibits the following two properties: 1) inhibition the oxidation of its flowed components, resins and oils (aromatic and saturated) and 2) preservation of the colloidal stability of the asphaltene, inhibition of its adsorption on aggregates (pricked stone, sand) until the moment of the paving. | 01-07-2016 |
| 20160053119 | SYSTEM, METHOD, APPARATUS, MEANS, AND COMPUTER PROGRAM PRODUCT FOR RECYCLING ASPHALT SHINGLES - A system for producing an asphalt mix output suitable for use as an asphalt pavement is provided. The system may include a preliminary mixing unit configured to mix asphalt shingles with hot fluid asphalt to melt the asphalt shingles. The molten asphalt formed from the asphalt shingles and the hot fluid asphalt may be mixed with aggregate material and/or recycled asphalt material to form an asphalt mix output. An intermediate tank may store the molten asphalt prior to mixing with the aggregate material and/or the recycled asphalt material | 02-25-2016 |
| 20160122543 | Pollution Control System And Method For Hot-Mix Asphalt Manufacturing - A pollution control device for a hot-mix asphalt manufacturing system includes a filter that receives and filters emissions from a rotary dryer. The filter may include a pre-filter and/or a fiber bed filter. The filtered emissions are then sent to an oxidizer where they are heated to remove hydrocarbons. Heat energy from the emissions from the oxidizer is used to pre-heat emissions introduced into the oxidizer. | 05-05-2016 |
| 20160130442 | RECYCLED HOT ASPHALT MIXTURE PRODUCTION METHOD - Provided is a production method of a recycled hot asphalt mixture obtained by mixing a recycled aggregate, a new aggregate, asphalt, and an additive for recycle, comprising: heating the additive for recycle; adding moisture to the heated additive for recycle and mixing thereof so as to make the additive for recycle be formed; and adding the additive for recycle in a foamed state to the recycled aggregate, the new aggregate, and the asphalt and mixing thereof. | 05-12-2016 |
| 20160130506 | PROCESSES FOR PRODUCING DEASHED PITCH - A process for de-ashing pitch. The pitch from a slurry hydrocracking process is mixed with a solvent. The mixture is separated into solvent and soluble materials and insoluble materials. The insoluble materials can be dried to recover solvent which may be recycled. The solvent and soluble materials are separated. The solvent may be recovered and recycled. Hi-Sol 15 may be the solvent. Additionally, CSO may be the solvent and a portion thereof may be used with the de-ashed pitch to make an asphalt binder. | 05-12-2016 |
| 20160160049 | ASPHALT COMPOSITION INCLUDING FINE PARTICLES FROM BITUMEN RECOVERY - Methods are provided for making asphalt mix composition from mixtures of binder, aggregate, and tailings derived from a solvent froth treatment performed to recover bitumen from mined oil sands. The tailings derived from the solvent froth treatment can be used to replace at least a portion of the small particles in the aggregate used for forming the asphalt mix composition. | 06-09-2016 |
| 20160201274 | RECYCLED ASPHALT PROCESS | 07-14-2016 |
