Abstract: In a process for preparing asphalt mixes charged with fibrous materials, the fibrous materials are introduced directly and continuously into the liquid asphalt in a drum, before or after contacting of the liquid asphalt with inert materials.

Abstract: A composition for the fixation of hydrocarbons from contaminated oily soil. The contaminated oily soil is a component in a cold mix asphaltic concrete. The soil is mixed with asphaltic roof cuttings and mineral aggregates to form the mixture. The mixture is coated with a cold mix emulsion to form an asphaltic concrete. The hydrocarbons do not leach from the set concrete.

Abstract: An improved cold patch composition for pavement repair and method of preparation therefore, including recycled asphalt roofing waste, aggregate, and solvent. Recycled asphalt roofing waste provides an excellent, although unexpected, source of asphalt, filler, and fiber, which when used in conjunction with the method of this invention provides compositions having remarkable engineering performance properties quickly upon application, with little cure time. Use of asphalt roofing wastes represents a means of recycling a non-renewable resource and providing an environmentally-safe alternative to landfill disposal of such materials.

Abstract: An asphalt paving mix preferably comprising a mixture of asphalt oil preferably in the range of between about 18 and 22 percent by weight; mineral wool fiber preferably in the range of 17 and 23 percent by weight and having a length of between about 0.5 and 5.0 inches and a shot content of between about 25 and 35 percent by weight and aggregate material preferably in the range of between about 55 and 65 percent by weight and having a particle size not less than 0.060 inch and methods for making the asphalt paving mix.

Abstract: A bituminous mixture, comprising from 0.5 to 20% by weight mineral wool in admixture with bitumen, the fibers of said mineral wool prior to any chemical or mechanical treatment, being equal to at most 7 per 5 grams, and said fibers being treated with a non-ionic finish.

Abstract: The present invention is a particulated asphalt composition and process for producing same. The composition is a cold mix product for construction and repair of asphalt-containing products using asphalt particulate, roughage and solvent, with the asphalt to roughage ratio ranging from one part asphalt to between four and forty parts roughage, and with solvent comprising three to ten gallons per ton weight composition.

Abstract: The present invention is a particulated asphalt composition and process for producing same. The composition is a cold mix product for construction and repair of asphalt-containing products using asphalt particulate, roughage and solvent, with the asphalt to roughage ratio ranging from one part asphalt to between four and forty parts roughage, and with solvent comprising three to ten gallons per ton weight composition.

Abstract: Disclosed herein is a vibration damper comprising 30-70 wt. % of a vibration damper base composed of approximately 30-38 wt. % of a resin component and approximately 55-65 wt. % of aromatic components and obtained either by adjusting the components contained in an asphalt base crude oil in the course of its refining or by blending and adjusting a resin component and aromatic component contained in petroleum asphalt, and 50-20 wt. % of an inorganic filler in the form of a thin flake of 20-200 mesh, the sum of said vibration damper base and filler being at least 80 wt. %. The vibration damper is suitable for installation on the floors of vehicles.

Abstract: A process for the fixation of hydrocarbons found in contaminated oily soil. The contaminated oily soil is used as a component in a cold mix asphaltic concrete. The soil is mixed with asphalt roof cuttings containing fibers and mineral aggregate to form a mixture. This mixture is coated with a cold mix emulsion to form an asphaltic concrete. The hydrocarbons do not leach from the set concrete.

Abstract: A method for producing an asphalt mixture using single particle-size aggregate whose weight ratio passed through a sieve having the size of mesh of 2.36 mm is lower than 15% comprising the steps of: (1) adding foamed surface active agent of 1.0 to 30.0% in its weight ratio to asphalt to the asphalt and aggregate which are mixed in a mixer of an asphalt plant or (2) adding rubber latex of 6 to 30% in its weight ratio to pure asphalt, and adjusting the quantity of the asphalt containing rubber so as to exceed 5.5% and stay below 8.0% in its weight ratio to the asphalt mixture and forming the asphalt containing rubber on the surface of the aggregate.

Abstract: A granulate for introducing a fibrous filler material into a liquid bitumen mass by adding said granulate to said liquid bitumen mass is provided, said granulate comprising: fibers of said fibrous filler material, said fibers coated and agglomerated into granulates by a binding agent, said binding agent initially binding said fibers when introduced into said bitumen and thereafter losing its binding effect in said liquid bitumen when exposed to heat or the presence of a solvent incorporated in the liquid bitumen thereby effectuating a complete dissolution of said granulate and homogeneous distribution of said fibers throughout said liquid bitumen mass.

Abstract: Use of surface modification treatment on mineral fines to obtain higher filler loadings in asphalt used for roofing shingles. Mineral fines are coated with oil such as a petroleum oil at about the 0.25-1.0 percent level before they are incorporated into molten asphalt. This treatment makes minerals which otherwise would be uncompetitive with traditional fillers, such as limestone, sufficiently compatible with asphalt to be a viable alternative to limestone. Nepheline syenite mineral fines treated in this manner have been successfully incorporated into asphalt for shingles at a loading of 65-70%.

Abstract: Compositions particularly adapted to the damping sheet are provided. They contain a binder component and a filler component consisting of inorganic fillers and an organic filler.The organic filler occupies from 1 to 25 parts by weight of the total amount of the filler and it is an organic fibrous filler having the fiber length of from about 50 to about 300.mu., the mean length being about 100.mu.. Quick lime occupies from 0.05 to 10 parts by weight of the total amount of the filler as one of the inorganic fillers. The compositions possess distinguished properties when used as the damping sheet for vehicles.

Abstract: A surfacing mass especially for outdoor use and mainly comprising a mixture of asphalt and a stone material having a low content of fine material. The mixture comprises a little amount of fibres of a type which is not solved or softens in the asphalt, preferably mineral fibres. The fibre material has an average diameter of between 1 and 5 .mu.m and is added in an amount of between 0.5 and 20% by weight calculated on the amount of asphalt. The invention also relates to a method of manufacturing such surfacing mass at a mixing temperature of 140.degree.-170.degree. C. or preferably 150.degree.-160.degree. C. both for the asphalt and the stone mass. Preferably the fibre material is admixed in the asphalt before the mixing thereof with the stone material. The fibre material may be admixed in the asphalt at an asphalt temperature which is higher than the mixing temperature for asphalt and stone material.

Abstract: A fire retardant material is formed by intimately associating the unexpanded form of perlite in association with a permeable mass of silica glass, said association is formed by permeating said perlite into said mass of glass. The composition comprises particles of unexpanded perlite less than 100 mesh and preferredly no larger than 200 mesh and the permeable glass comprises a glass fiber mat. The fire retardant material can be formed as a unified body capable of being applied onto other structural components or alternately, it can be intimately bonded to the surface of structural components as a veneer layer. Upon exposure to combustion temperatures the perlite expands from its unexpanded form to its expanded form at or near the deformation point of the glass mat followed by reaction of the perlite and the glass to form a flame-impenetrable ceramic.

Abstract: Paving mixtures are disclosed comprised of paving grade asphalt containing about 4 to 10% by weight of a fibrous filler and 2.5 to 15% by weight of a mixture of eighteen carbon fatty acids containing up to about 30% by weight of rosin.

Abstract: An improved process for forming an acoustical or thermal insulating fibrous glass product is provided, wherein the binder employed is asphalt and the asphalt is converted into a substantially insolubilized form.

Abstract: A reinforced composite formed of a bitumen, an elastomer or a plastic reinforced with a filler containing a coating thereon in the form of a chemically modified bitumen. The chemically modified bitumen employed is one formed by reaction of a linking agent reactive with the bitumen and containing groups reactive with the filler so that the chemically modified bitumen undergoes a chemical reaction with the filler to thereby intertie the coated filler with the continuous phase.

Abstract: A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.

Abstract: Chemically modified asphalt compositions prepared by reaction of asphalt with ammonia, a polyamine or an aromatic diamine. The chemically modified asphalt compositions of this invention are particularly well suited for use in the treatment of glass fibers as reinforcement for asphalt matrices.

Abstract: A method and apparatus for separating roofing refuse into its components for recycle into four valuable products (a) solid fuel (b) solid bitumen (c) bitumen coated aggregates (d) sheetmetal scraps.The refuse which contains fibrous paper pulp, bitumens, mica, various types of aggregates, sheetmetals, etc., is first sized, then immersed in hot liquefied bitumens during a heat controlled separation process, after which, the components are mechanically extracted, compacted, allowed to cool to ambient temperature and packaged separately.

Abstract: A chemically-modified asphalt composition formed by reaction of asphalt and a polymerizable aromatic monomer followed by reaction with a polyester. Alternatively, the impact strength of the chemically-modified asphalt composition can be increased by carrying out the latter reaction in the presence of a rubbery polymer. The composition is non-tacky relative to the asphalt and can be cross-linked with a vulcanizing agent to form rigid bodies which can be chemically bonded to reinforcements and fillers, specifically including glass fibers.

Abstract: A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.

Abstract: A filler reinforced composite comprising bitumen as a continuous phase and as reinforcement in the bitumen, fillers which have been coated with a chemically-modified bitumen composition prepared by reacting a bituminous material with an organo metallic compound.

Abstract: A filler reinforced composite comprising bitumen as a continuous phase and as reinforcement in the bitumen, fillers which have been coated with a chemically-modified bitumen prepared by reacting a bituminous material with a chromium complex.

Abstract: Emulsion compositions containing substantial amounts of gilsonite consist essentially of a gilsonite phase consisting of a mixture of between about 33 and about 95% gilsonite, and a petroleum hydrocarbon having a boiling point above about 200.degree. F., and a water phase consisting essentially of water and a small amount of emulsifying agent. The emulsifying agent may include a surface active clay.

Abstract: Glass fibers, either in the form of individual filaments or bundles or glass fibers, which have been coated with a chemically-modified asphalt prepared by reacting a bituminous material with an organo silicon compound in which the organic group attached to the silicon atom contains a functional group reactive with the bitumen. The coated fibers can be used as reinforcement for bitumen or bitumen plus aggregate to securely tie the glass fiber surfaces to the bitumen.

Abstract: Glass fibers, either in the form of individual filaments or bundles of glass fibers, which have been coated with a chemically-modified asphalt prepared by reacting a bituminous material with a chromium complex. The coated fibers can be used as reinforcement for bitumen or bitumen plus aggregate to securely tie the glass fiber surfaces to the bitumen.

Abstract: A pipe coating composition is the subject of the present invention. A bituminous base coating comprising binder, aggregate and fiber utilizes cement stack dust as a filler in place of conventional lime dust or cement. The cement stack dust filler is utilized in quantities up to 25% less than the quantity of lime dust previously required for lime dust.

Abstract: A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.

Abstract: Pre-stressed polyethylene foil is shredded mechanically in a closed vessel, whereby it is heated until it shrinks and its surface becomes tacky. When latex is sprayed into the vessel, a thin rubber layer covers each foil fragment and is thermally welded to the polymer surface. The rubber layer traps pockets of aqueous latex in voids of the shrunken foil. The weight and bulk of the resulting material are much greater than the corresponding properties of its rubber content so that precisely measured amounts of rubber may be dispersed quickly and uniformly in hot asphalt for improving the properties of a road surface made from the asphalt mixture. The water content of the rubber-coated plastic fragments improves the working properties of the asphalt mixture.

Abstract: The employing of finely-divided and naturally-occurring particulate matter of Trinidad Asphalt to lock or hold the aggregate filler mixture of the pavement mix in position, almost entirely filling the mix with soft bitumen, permitting subsequent compacting (as by rolling) to a state of substantial voidlessness, and thereby achieving a pavement which is both strong with respect to bearing strength yet soft and/or flexible with respect to its tendency to crack, and which will optimize a sort of self-rehealing of the membrane if cracking should start to occur.

Abstract: Emulsion compositions containing substantial amounts of gilsonite consist essentially of a gilsonite phase consisting of a mixture of between about 33 and about 95% gilsonite, and a petroleum hydrocarbon having a boiling point above about 450.degree. F., and a water phase consisting essentially of water and a small amount of emulsifying agent.

Abstract: Asbestos-free bituminous composition comprising 3-12 wt% high structure carbon black dispersed in asphalt cutback.

Abstract: Asbestos-free bituminous composition comprising 1-3 wt% high-structure carbon black and 1 to 25 wt% expanded perlite dispersed in asphalt cutback. The composition also contains 0.5 to 5 wt% water.

Abstract: A pipe coating composition consisting essentially of a binder, mineral aggregates, a finely divided mineral filler and synthetic organic fibers exhibits improved cracking time as compared to a pipe coating composition containing glass fibers instead of the organic fiber.

Abstract: Novel bituminous compositions are disclosed which are characterized by elevated Ring and Ball softening points ranging up to about 200.degree. C. They are prepared by the treatment of molten bitumen, in the absence of solvent, with a combination of: (a) an amine selected from the class consisting of an aliphatic amine having from 10 to 20 carbon atoms, and aromatic polyamines; and (b) an isocyanate selected from the class consisting of aliphatic isocyanates having from 10 to 20 carbon atoms, and aromatic polyisocyanates; provided that in any instance in which the amine component is aliphatic, then the isocyanate component is aromatic. The combined weight of (a) and (b) present in the bitumen, is from about 1 to about 10 weight percent based on the weight of bitumen. The bituminous compositions are useful in paving, and roofing applications, especially in countries which experience hot climates.

Abstract: A sulfur-based aggregate-asphalt composition prepared by a process comprising mixing aggregate with asphalt and a molten sulfur system, wherein the molten sulfur system is made by a method comprising heating a mixture of sulfur and a sulfur plasticizer. Dicyclopentadiene is a preferred material for plasticizing the sulfur. Preferably the sulfur system contains, in addition to the sulfur plasticizer, a fibrous filler such as glass fiber or asbestos, and an inorganic filler such as talc powder.

Abstract: A method for coating a fabric with an asphalt emulsion containing asbestos fibers, the fibers having been pretreated with a non-ionic surface active agent to yield a stable emulsion containing asphalt and fortifying asbestos fibers, useful as a sealant composition which will not extrude from the fabric under elevated hydraulic or fluid pressures. Stable emulsions containing asbestos fibers which have been pretreated with a non-ionic surface active agent are disclosed.

Abstract: A filler material for a road paving composition is described, the material having a low sensitivety to water and having fine gravel, pebbles and an organic binder selected from the group consisting of ashphalt, bitumen and tar, said filler material comprising at least one natural hydrated silicate selected from the group consisting of kaolinite, antigorite, sepiolite and palygorskite, said hydrated silicate having been subjected to a heat treatment at a temperature between 200.degree.C and 800.degree.C to irreversibly remove water of hydration to enhance porosity and ability to absorb bitumen, said filler material having a fineness at which at least 80% by weight will pass through a 74 micron screen, a porosity of at least 50% by volume and a swelling factor of not more than 3% in water after said organic binder has been absorbed therein.

Abstract: There are provided improved asphalt cements and bituminous paving compositions containing certain reinforcing filler compositions which impart desirable properties thereto. The filler compositions of the invention comprises certain carbon blacks which have been treated with certain non-volatile petroleum oils.

Abstract: A method of making a roofing shingle and an asphalt-saturated base sheet generally, utilizing a particular asphalt composition, are disclosed herein. The composition includes asphalt, which at least initially is in a molten state, and a filler material, preferably limestone or other similar mineral filler, dispersed throughout the molten asphalt. In addition, the composition includes a small amount of glass in the form of glass fiber bundles dispersed throughout the asphalt. The glass fiber bundles are made of monofilaments bonded together and are preselected to affect the viscosity of the molten asphalt in a predetermined way depending upon the temperature of the asphalt.