Abstract: Methods for cementing a subterranean well and maintaining zonal isolation involve preparing a cement slurry that contains water, an inorganic cement and an expanding agent. The slurry is placed in the annular region between casing and the formation or between two casing strings. After the cement sets, the expanding agent reacts and causes the set cement to be in a state of compression within the annular region. The casing dimensions may fluctuate in response to a temperature change, a pressure change, a mechanical disturbance resulting from a well intervention, or mud contamination or a combination thereof. The expanding agent may further react and maintain a state of compression within the annular region. The state of compression in the annular region may be monitored by acoustic impedance measurements.

Abstract: The present invention relates to an asphalt product. The asphalt product includes an asphalt binder and a bio-oil blend comprising a mixture of a non-hydrogenated bio-oil and a partially hydrogenated bio-oil, where the bio-oil blend is mixed with the asphalt binder to form an asphalt product having a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and/or a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C. The present invention further relates to methods of producing an asphalt product and methods of applying an asphalt product to a surface.

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 present invention relates to colorful regenerated asphalt-concrete and to a method for manufacturing same. More particularly, disclosed are colorful regenerated asphalt-concrete using recycled aggregates from waste asphalt and to a method for manufacturing same, in which products obtained from the thermal decomposition of waste asphalt are mixed with new aggregates and asphalt, and a pigment and an ultraviolet-ray blocker are mixed into the mixture, to thereby not only improve the physical properties of the regenerated asphalt concrete, but also maintain the color of the regenerated asphalt concrete over a long period of time, thus achieving improved weather resistance and durability.

Abstract: Use of a non-ionic surfactant in the preparation of modified sulfur and/or modified sulfur cement that may or may not be modified sulfur concrete.

Abstract: A Performance Grade sulfur-extended asphalt binder emulsion is made by combining a viscosifier, an emulsifier, a Performance Grade sulfur-extended asphalt binder, optionally a saponification agent, and a base aqueous solution. During creation of the asphalt emulsion, none of the components or combinations of them exceeds 275° F. The Performance Grade sulfur-extended asphalt binder composition is made by combining free or element sulfur, a linear alkane material, optionally a saturated-backbone polymer modifier, optionally a non-aqueous acid, and a base asphalt. The disclosed Performance Graded sulfur-extended asphalt binder and Performance Graded asphalt sulfur-extended asphalt binder emulsion allow operators using these products directly or in combination with aggregates and other materials to mix and blend the compositions, and apply the compositions in the field, at temperatures less than 300° F.

Abstract: A self-adaptive cement formulation includes cement, water and asphaltite-mineral particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self-healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.

Abstract: A self-adaptive cement formulation includes cement, water, block copolymer and asphaltite-mineral particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self-healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.

Abstract: The present invention relates to construction materials comprising at least one binder, at least one oil-containing filler and at least one metallate additive according to formula (1): (RO)m-M-(Oa—Xb—R?c—Yd)n??(1) wherein M is one of titanium and zirconium. The present invention also relates to methods of preparing and using the inventive construction materials. The inventive construction material compositions are capable of utilizing oil-containing fillers in which the oil is stable in the final composition and the desired mechanical properties of the construction material are maintained or improved.

Abstract: The present invention relates to construction materials comprising at least one binder, at least one oil-containing filler and at least one metallate additive according to formula (1): (RO)m-M-(Oa—Xb—R?c—Yd)n??(1) wherein M is one of titanium and zirconium. The present invention also relates to methods of preparing and using the inventive construction materials. The inventive construction material compositions are capable of utilizing oil-containing fillers in which the oil is stable in the final composition and the desired mechanical properties of the construction material are maintained or improved.

Abstract: A Performance Grade sulfur-extended asphalt binder emulsion is made by combining a viscosifier, an emulsifier, a Performance Grade sulfur-extended asphalt binder, optionally a saponification agent, and a base aqueous solution. During creation of the asphalt emulsion, none of the components or combinations of them exceeds 275° F. A Performance Grade sulfur-extended asphalt binder emulsion residue is made by treating the Performance Grade sulfur-extended asphalt binder emulsion using the Texas Department of Transportation Evaporation Recovery Procedure. A Performance Grade sulfur-extended asphalt binder composition is made by combining free or element sulfur, a linear alkane material, optionally a saturated-backbone polymer modifier, optionally a non-aqueous acid, and a base asphalt. During creation of the asphalt binder, none of the components or combinations of them exceeds 275° F.

Abstract: The present invention is directed to a heavy duty pavement structure comprising an open-graded asphalt layer fortified with a non-segregating grout mixture. The heavy duty pavement structure is made through the steps including forming an open-graded asphalt layer and then fortifying the layer with a non-segregating grout mixture that includes a predetermined amount of portland cement, sand and cement binder system.

Abstract: The present invention provides the composition of the modified RAP-recycled warm mix asphalt, whose composition is characterized as consisting of a mixed asphalt concrete mix, a cohesive agent, a recycling modifier, a plasticized warm mix additive, and if necessary, reinforcing agent will be added to the composition. The aforementioned composition can be mixed to produce the modified RAP-recycled warm mix asphalt. This invention is characterized in reusing a great portion of RAP compared to the less use in the existing practice. The use of a recycling modifier improves further better performance properties to extend the life cycle of recycled asphalt pavements, compared to the conventional virgin asphalt pavements as well as the existing recycling ones. The plasticized warm mix additives offer economic, social, and technical advantages by saving the fuel consumption required for production, reducing greenhouse gas emissions, and shorten traffic opening times.

Abstract: 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 a second drum; adding a first binder material to the RAP in the first drum to provide treated RAP; supplying the treated RAP, the virgin aggregate, filler and a second binder material to a mixing zone; and mixing to provide the asphalt mixture.

Abstract: Suggested is the use of amides and/or polyamides obtainable by condensation of (a) mono- and/or dicarboxylic acids and (b) amines and/or polyamines as auxiliary agents for aqueous asphalt and bitumen compositions.

Abstract: A new photocatalytic composition is described that is designed for percolation in road surfaces. The composition contains no aggregates, but consists of cement, a photocatalyst, a superfluidifier, a viscosity modifier and an antifoaming agent, in suitable proportions. The composition is applied to porous open-graded asphalt courses, completely filling the cavities down to a thickness coming between 30 and 50 mm. The treated asphalt acquires a strong, durable photocatalytic activity, even when it is submitted to heavy mechanical loads and adverse weather conditions, as in the case of road surfaces in and out of town, liable to intense traffic.

Abstract: The invention relates to a modification additive for asphalt masses and to the manner of production of asphalt masses for the creation of mineral-asphalt mixtures having a high shear modulus. The essence of the invention is a modifier, characterized in that it comprises 50 to 97% of cyclopentadiene oligomers, which are dissolved in 2 to 30% by weight of alkenes with 9-11 carbon atoms in a molecule, and 1 to 15% by weight of cyclic and aromatic olefins, wherein the latter are segregation residues of other hydrocarbon fractions. The liquid asphalt mass is added to the above-mentioned modifier in a quantity of 0.1 to 15% by weight at a temperature of no more than 185° C. and kept in a liquid state for at least 15 minutes. The modified asphalt obtained in this way, together with the mineral additive, forms mineral-asphalt mixtures having a high shear modulus.

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: Effective use of dispersants in wallboard containing foam results from a method where stucco is mixed with a first dispersant and a first quantity of water to form a gypsum slurry. A soap is blended with a second dispersant and a second quantity of water to make a foam. Subsequently, the foam is combined with the slurry. Choice of different first and second dispersants and their relative amounts allows control of the size distribution of the foam bubbles in the slurry and the resulting voids in the gypsum core. Use of the same dispersant in both the mixer and the foam water provides a boost in efficacy of the dispersant.

Abstract: Disclosed herein is a composition for solidifying soil and industrial waste. The solidifying composition contains 16-24 wt % of straight asphalt, 0.06-0.10 wt % of an emulsifier for asphalt, 0.8-1.2 wt % of light oil, heavy oil or a mixture thereof, 0.01-0.03 wt % of calcium chloride, 0.8-1.2 wt % of lignin, 0.7-1.3 wt % of an acrylic emulsion-based asphalt modifier, 0.13-0.21 wt % of sodium hydroxide, 0.22-0.34 wt % of oleic acid, and the balance of water. A solidified material formed using this solidifying composition has increased density, strength and elasticity, improved durability and a short curing time. Furthermore, the solidifying composition enables soil and industrial waste to be recycled as a substitute for stone materials, such that it allows material sources to be readily secured in public or construction work fields, leading to a reduction in construction cost, and can also contribute to the preservation of the natural environment.

Abstract: An asphalt based mixture, which is an oil and water emulsion, comprises 15-30% V water; 34 to 80% asphalt cement dispersed as asphalt cement droplets; and 20-66% V emulsifiers. Other materials are selectively added to the composition to improve characteristics including stability, viscosity, cohesion, adhesion and resistance to cracking.

Abstract: 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 primer interlayer between the hot aggregate and the base binder. As a result, the asphalt concrete has enhanced performance when compared with other asphalt concretes produced without a primer being added.

Abstract: Liquefied biomass obtained from direct liquefaction and/or fast-pyrolysis is reacted with mixtures of fatty acids in the presence of an oxidizer and with various reactive monomer and polymer additives to create tailored compatibilizer-like bio-additives that are compatible with petroleum asphalts. By judicially selecting appropriate the additives and additional constituent, such as non-reactive and reactive diluents, these bio-additives can be tailored to modify low-temperature properties, high-temperature properties, compatibility with aggregate materials, application characteristics, and other properties of petroleum asphalts for paving, roofing and sealing uses.

Abstract: 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 parts by weight of cement to 100 parts by weight of soil, industrial waste or a mixture of two or more thereof. The solidified material prepared according to this method has excellent density, strength, elasticity and durability, and thus can be used as a substitute for stone material. Also, it can be advantageously used in high-temperature and high-humidity areas, because external impact or pressure is relieved because it is absorbed by asphalt.

Abstract: 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 materials along with an aggregate will form an environmentally safe, structurally sound road base material. An asphalt emulsifier may be included in the binder to manufacture asphalt stabilized road base. The entire method is a cold batch process.

Abstract: Concrete products and mixes with reinforcing carbon graphite fibers, the carbon fibers being provided in the form of resin coated warped beam fabric, and a method for producing reinforced concrete products, where semi-cured carbon fibers are mixed with concrete and then cured through the hydration step to result in the formation of strengthened concrete products.

Abstract: A lime pellet for use in asphalt applications can include lime fines and an asphalt-compatible binder. The pellet is characterized as having a rigid structure with a dimension greater than about 1.5 mm and being compatible with a hot mix asphalt so as to dissolve in liquid asphalt. Optionally, the binder is characterized by having less than about 50% by weight of total binder being sulfur, or the pellet is characterized by having lime in an amount of at least 31% by weight, or being storage-stable and agglomeration resistant. The pellet is manufactured by mixing the lime fines with the asphalt-compatible binder and forming pellets therefrom. The pellets are useful for conditioning an end product of hot mix asphalt during the manufacture of such an asphalt. The method of conditioning includes providing the lime pellet, and mixing the lime pellet with a hot mix asphalt ingredient, wherein the ingredient is at least one of an aggregate or asphalt cement.

Abstract: Concrete and/or cement products and mixes with reinforcing carbon graphite fibers having a length of about 2½ inches to about 3½ inches, and/or nano and/or micron sized carbon fibers, and a method of reinforcing concrete.

Abstract: 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 materials along with a binder, will achieve an irreversible pozzolanic chemical reaction necessary for stabilization into a road base. An asphalt emulsifier may be included in the binder to manufacture asphalt stabilized road base. The entire method is a cold batch process.

Abstract: The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” and aggregate waste and a novel road base material. Hydration and mixing of the waste materials along with a binder, will achieve an irreversible pozzolanic chemical reaction necessary for stabilization into a road base. An asphalt emulsifier may be included in the binder to manufacture asphalt stabilized road base. The entire method is a cold batch process.

Abstract: 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 materials along with a binder, will achieve an irreversible pozzolanic chemical reaction necessary for stabilization into a road base. An asphalt emulsifier may be included in the binder to manufacture asphalt stabilized road base. The entire method is a cold batch process.

Abstract: The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” and aggregate waste and a novel road base material. Hydration and mixing of the waste materials along with a binder, will achieve an irreversible pozzolanic chemical reaction necessary for stabilization into a road base. An asphalt emulsifier may be included in the binder to manufacture asphalt stabilized road base. The entire method is a cold batch process.

Abstract: A roadway base comprises oily sludge, steelmaking slag fines, and an additive selected from the group consisting of cement, fly ash, asphaltic emulsion, and mixtures thereof

Abstract: A cementitious composition comprising 0.1 to about 7.5 percent by weight of a solid residual oxidation product from the combustion of an aqueous emulsion of a naturally occurring asphalt from the Orinoco Belt of Venezuela which contains from about 100 to about 1500 ppm by weight of magnesium in the form of a water soluble magnesium salt, which product from the combustion contains magnesium sulfate present in the amount of from about 0.05 to about 4 percent by weight of the cementitious composition and from about 92.5 to about 99.95 percent by weight of a hydraulic silicate cement material.

Abstract: Bituminous compositions of enhanced physical/performance properties comprising an oxidation product of a naturally occurring asphalt from the Orinoco Belt of Venezuela and the bitumen base material, and methods for their preparation.

Abstract: The invention relates to a reinforcing material suitable for repairing cavities in the ground surrounding an underdrain through which sewers are laid down, and provides a bituminous reinforcing material for grouting excellent in workability and durability. The two-liquid bituminous reinforcing material comprises a liquid A that is obtained by mixing together an asphalt emulsion, a hydraulic inorganic material, a reactive type of water-soluble resin, and water, and a liquid B that is obtained by mixing together an asphalt emulsion, a hydraulic inorganic material, a polymerization catalyst, and water.

Abstract: Asbestos-free asphalt cold application roofing compositions are made available through the controlled utilization of fly ash.

Abstract: Manufactured aggregates and/or composites having incorporated therein an asphaltic oxidation product.

Abstract: A method for the preparation of asphalt concrete from organic contaminated soils such as petroleum contaminated soils in batch mix processing, with reduced levels of pollution emissions. The resultant asphalt concrete is also either strengthened or the asphalt content can be reduced without loss of strength. The contaminated soil is added to superheated aggregate (380.degree.-450.degree. F.) in a closed mixer, in amounts ranging from 5-25% by weight of total aggregate, and the combination is mixed to uniformity, prior to addition of the asphalt cement binder. A conveying system for the cold wet contaminated soil is also described.

Abstract: Improved cementitious compositions having increased flexural, tensile and shear-bond strength, increased wear resistance, decreased water permeability and enhanced workability than previous cement compositions, which are prepared with water treated with an emulsified tar component, and preferably a residual amount of sodium tripolyphosphate, are provided. Methods of forming shaped articles therefrom are also provided.

Abstract: Improved cementitious compositions having increased flexural, tensile and shear-bond strength, increased wear resistance, decreased water permeability and enhanced workability than previous cement compositions, which are prepared with water treated with an emulsified tar component, and preferably a residual amount of sodium tripolyphosphate, are provided. Methods of forming shaped articles therefrom are also provided.

Abstract: A polymer-modified bitumen (PmB) having improved elastic restoration and having a content of 0.5-20 wt. % of polymer components which polymer components are comprised to the extent of at least 20 wt. % of polyalkyl (meth)acrylates having molecular weights greater than 30,000, said polyalkyl (meth)acrylate being comprised of 50-99.8 wt. % of alkyl (meth)acrylates having alkyl groups of 8-26 C atoms, 0.1-2.8 wt. % of polymerizable carboxylic acids, 0.1-2.8 wt. % of polymerizable basic nitrogen compounds; and 0-49.8 wt. % of one or more other polymerizable compounds each having not more than one polymerizable double bond.

Abstract: A polymer-modified bitumen (PmB) having improved elastic restoration prepared by blending from 0.5-20 wt. % of a polymer material in bitumen, said polymer additive, which may be comprised of various polymers, being comprised of from 20-100 wt. % of a polyalkyl (meth)acrylate comprising monomer units as follows:50-100 wt. % of alkyl (meth)acrylates containing alkyl groups of 8-26 C atoms;0-30 wt. % of alkyl (meth)acrylates containing alkyl groups of 1-7 C atoms; and0-20 wt. % of other monomers, optionally containing functional groups;and said polymer having a molecular weight Mw>1,000,000, corresponding to a viscosity number .eta..sub.sp /c>120 ml/g as measured in chloroform at 20.degree. C.