Abstract: Disclosed is a cementitious material that possesses favorable adhesion and compressive strength properties and is suitable for cold weather applications. Disclosed also are methods for the manufacture and use of the material.

Abstract: The present invention relates to a current composition for cementing oil or gas wells. The composition comprises calcium aluminate cement in which the proportion of HC203 is at least 50% by weight, dispersant, microsilica, mineral particles, water and optionally a retarder.

Abstract: A flame retardant composition is produced by mixing a flammable organic material with an inorganic phosphorus-inorganic phosphoric oxyacid compound or its salts. The inorganic phosphorus-inorganic phosphoric oxyacid compounds are produced by reacting an inorganic phosphorus compound having a valence of 3-4 with an inorganic phosphorus oxyacid with a valence of 5. Carbonization auxiliaries, metal-containing compound having a carbonization acceleration effect, a comb-like polymer and a filler may be added with the flame retardant composition.

Abstract: A pre-mixed mortar, stucco or masonry composition includes from 70 to 80 percent sand and from 20 to 30 percent of a light-weight cement mix composition that comprises either slag cement, Gypsum or a combination of slag cement and gypsum; Portland cement; clay; and polystyrene.

Abstract: Ultra-high-performance cementitious materials are made using suitably functionalized and relatively low-cost carbon nanofibers and graphite platelets. Polyelectrolytes and surfactants are physisorbed upon these graphite nanomaterials in water, and dispersion of nanomaterials in water is achieved by stirring. Stable and well-dispersed suspensions of nanomaterials in water are realized without using energy-intensive and costly methods, and also without the use of materials which could hinder the hydration and strength development of ultra-high-performance cementitious materials. The water incorporating dispersed nanomaterials is then mixed with the cementitious matrix and, optionally, microfibers, and cured following standard concrete mixing and curing practices. The resulting cementitious materials incorporating graphite nanomaterials and optionally microfibers offer a desired balance of strength, toughness, abrasion resistance, moisture barrier attributes, durability and fire resistance.

Abstract: A hydraulic composition comprising a water-soluble hydroxyalkyl alkyl cellulose, cement, aggregate, reinforcing fibers, and water is provided. The hydroxyalkyl alkyl cellulose has a degree of alkyl substitution of 1.2-1.7, the sum of the degree of alkyl substitution and the molar substitution of hydroxyalkyl is 1.5-2.0, and a proportion of glucose ring not substituted with alkyl and hydroxyalkyl groups per glucose ring unit is up to 10 mol %. The composition cures within a short time and is extrusion moldable even at elevated temperature.

Abstract: An aqueous gypsum plaster-cement composition comprises a hydraulic binder consisting of calcined gypsum and hydraulic cement in a weight ratio of from about 4:1 to about 2:1, an aggregate which comprises sand, a foam, a perlite, rice hulls or a mixture thereof, a superplasticizer comprising an air entraining agent, a retarder, and water in an amount of from about 0.4 to about 0.75 parts by weight per part of binder, with the proviso that the gypsum plaster-cement composition contains essentially neither a pozzolana nor lime. The use thereof, a method of constructing buildings using this composition and the buildings obtainable in this way are also described.

Abstract: Provided is a fiber reinforced cement based mixed material capable of securing high tensile strength and high toughness even after development of a crack. A fiber reinforced cement based mixed material contains cement, a mineral admixture, water, a chemical admixture, aggregate particles, and fibers, the aggregate particles contained in the fiber reinforced cement based mixed material in a proportion of 50 to 95% in terms of a weight ratio to the total weight of the cement and the mineral admixture, wherein a mean particle diameter of the aggregate particles is 0.2 to 0.8 mm, and at least some of the fibers is formed to be a bumpy fiber having asperities formed in the surface thereof, and a ratio (h/H) of a depth h of each of recessed portions among the asperities of the bumpy fiber to a smallest cross-sectional diameter H thereof is 0.05 to 0.8.

Abstract: A composite comprising a silicone compound sorbed onto a porous cross-linked polymer. This composition can be included in an oral care composition and inhibit bacterial adhesion on an oral surface.

Abstract: A water-based cement for producing tires, having water as solvent, cross-linkable unsaturated-chain polymer base, of sulphur, reinforcing filler, zinc oxide, accelerators, and an emulsifier of the general formula (I) [R1R2R3NR5(N(R4)3)n](n+1)+(n+1)X???(I) where: X is an anionic atom or group R1, R2 and R3, which may be the same or different, are each CmH2m+1, where m ranges between 1 and 3, or CH2CHCH2 or CHCHCH3 R4 is CH2CHCH2 or CHCHCH3 n is 0 or 1 R5 is an aliphatic group C15-C22 when n is 0; and is an aliphatic group C8-C16 when n is 1 when n is 0, at least one of R1, R2, R3 and R5 has a double bond.

Abstract: Despite the excellent properties associated with Magnesium OxyChloride (Sorel) based cements and Magnesium OxySulfate based cements, water and corrosion resistance has been limiting factors for achieving greater commercial applications. Such issues can be addressed by incorporating various alkali metal phosphates, such as Magnesium mono- or dihydrogen phosphate (MgHPO4 or MgH2PO4) with alkali metal fatty acids; such as Magnesium Stearate; and metal or alkali metal sulfates such as Aluminum Sulfate or Magnesium Sulfate. Water resistance is further enhanced by either pre-carbonating the mix water or the liquid magnesium chloride phase of the cements, or by adding a carbonate into the powder phase. Accelerated cure of this system has also been obtained by using various inorganic metal oxides. Additionally, improved corrosion resistance is achieved through the use of certain phosphates, zeolites, nitrites and other novel additives.

Abstract: A component part of a household appliance, in particular a component part of a washing group of a household appliance, is made of a polymeric concrete material comprising a polymeric binder system and an inorganic filler. The amount of filler in the material is greater than 60% wt.; and the binder system is an interpenetrated polymeric network, with one or more chemically cross-linked first polymers embedded in one or more second polymers and/or elastomers that are not chemically cross-linked.

Abstract: Catalytic partial oxidation using a metal oxide catalyst surface treats crumb rubber that is recovered from waste rubber tires. Advantages of using catalytically oxidized crumb rubber relative to using non-catalytically oxidized crumb rubber in making the rubberized concrete, includes superior mechanical strength and water-repealing capability, lower oxidation temperature and shorter oxidation time, and accelerated hydration times. Rubber oil (a gas condensate) co-produced from the crumb rubber partial oxidation process is equal to or better than the commercial superplasticizers. Industrial scale partial oxidation employs a continuous flow tubular reactor where a crumb rubber/catalyst mixture is fed into the reactor co-currently with an air/nitrogen mixture.

Abstract: A graft polymer PG includes a polymer backbone P and at least one side graft G linked to the polymer backbone, the graft G having the general formula (1): in which R1 and R2 represent, separately from one another, straight or branched, unsaturated or saturated hydrocarbon groups, such that the total number of carbon atoms in groups R1 and R2 is between 2 and 110; X represents an amide, amino-acid, urea or urethane function, the graft G being linked to the polymer backbone P via the sulphur atom. The graft polymer PG is a polymer that allows thermoreversible cross-linking and can be used in many fields such as coatings, paints, thermoplastics, adhesives, lubricants, fuels, inks, cements, construction materials, rubbers and bitumens. The graft polymer PG can be used in particular for thermoreversibly cross-linking bitumen/polymer compositions and thus for reducing coating, spreading and/or compaction temperatures during the production of bituminous coated materials.

Abstract: Cement compositions comprising polymeric particles with inorganic fillers have utilities in the context of well cementing. The fillers improve bonding between the polymeric particles and the cement matrix leading to improved mechanical parameters of the cement system. The filled particles may also lead to improved mixability and slurries that are easier to optimise.

Abstract: Use of two different methods, either each by itself or in combination, to enhance the stiffness, strength, maximum possible use temperature, and environmental resistance of thermoset polymer particles is disclosed. One method is the application of post-polymerization process steps (and especially heat treatment) to advance the curing reaction and to thus obtain a more densely crosslinked polymer network. The other method is the incorporation of nanofillers, resulting in a heterogeneous “nanocomposite” morphology. Nanofiller incorporation and post-polymerization heat treatment can also be combined to obtain the benefits of both methods simultaneously. The present invention relates to the development of thermoset nanocomposite particles.

Abstract: A self-adaptive cement formulation includes cement, water and thermoplastic block-polymer 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: Provided are compositions, methods and systems including cementitious compositions and reinforcing materials wherein the cementitious composition comprises a metastable component.

Abstract: Fiber reinforced matrix materials, wherein the fiber is of balanced tensile to ductile properties, and the molecular orientation of the fiber is substantially similar to the molecular orientation of a fiber precursor from which the fiber is formed; and wherein the fiber comprises a flattened shank having first and second terminal ends, wherein the first terminal end comprises a first nodule, and the second terminal end comprises a second nodule; and wherein a cross sectional area of the flattened shank is less than a cross sectional area of the first nodule, and wherein the cross sectional area of the flattened shank is less than a cross sectional area of the second nodule; and wherein the first nodule and second nodule retain the approximate diameter of a precursor material from which the fiber is formed.

Abstract: Synthetic fibers, such as polypropylene fibers, are mixed in a shrinkage compensating concrete to provide restraint in lieu of conventional steel reinforcement used in a shrinkage compensating concrete. While the synthetic fibers have a low elastic modulus and low strength, they act to restrain expansion of the concrete in the same way that conventional steel rebar does. In addition, only a small amount of the synthetic fibers are needed to restrain the expansion. As a result, shrinkage compensating concrete can be used in more varied applications, and can be provided more quickly, easily and inexpensively. Construction time requirements and expenses of concrete structures are correspondingly reduced.

Abstract: Catalytic partial oxidation using a metal oxide catalyst surface treats crumb rubber that is recovered from waste rubber tires. Advantages of using catalytically oxidized crumb rubber relative to using non-catalytically oxidized crumb rubber in making the rubberized concrete, includes superior mechanical strength and water-repealing capability, lower oxidation temperature and shorter oxidation time, and accelerated hydration times. Rubber oil (a gas condensate) co-produced from the crumb rubber partial oxidation process is equal to or better than the commercial superplasticizers. Industrial scale partial oxidation employs a continuous flow tubular reactor where a crumb rubber/catalyst mixture is fed into the reactor co-currently with an air/nitrogen mixture.

Abstract: A new class of ultra-high performance concrete with very high strength and very high tensile ductility (High Strength High Ductility Concrete) is provided that represents the culmination of two high performance cement-based composite systems, namely those of very high strength, and those of very high tensile ductility into a single composite system. The integration of high strength and ductility has been attained via the adoption of micromechanical analysis and design of fiber reinforced brittle matrix composites. In doing so, the new High Strength High Ductility Concrete material dramatically increases the energy absorption capabilities of structural systems employing this material, making it a very good candidate material where hurricanes, earthquake, impact and blast loads are a concern.

Abstract: The subject matter of the invention are coated aggregates for producing concrete and methods for the production thereof. The invention also relates to concrete compositions for producing concrete and concrete provided with aggregates, production methods and the use of organic polymers for the improvement of the stability of concrete.

Abstract: Methods and compositions are provided that relate to sealant compositions comprising cement kiln dust, tire-rubber particles, and water. An embodiment discloses a method comprising: providing a sealant composition comprising cement kiln dust, tire-rubber particles, and water; and allowing the sealant composition to set to form a hardened mass.

Abstract: Partial oxidation of crumb rubber derived from environmental hazardous waste tires yields surface treated crumb rubber and a gas condensate which are used as blending stocks for making rubberized concrete with substantially improved mechanical strength as compared to the conventional rubberized concrete. The chemically more active rubber surface becomes hydrophilic, so it interacts with the hydrophilic surface of surrounding cement matrix much stronger. The gas condensate co-produced in the partial oxidation reactor consists of mainly active sulfur oxides (R—SOx—R) and serves as an excellent bonding agent to further enhance the bonding strength between the partially oxidized rubber particles and the cement mixes. The mechanically improved rubberized concrete is more versatile than conventional rubberized concrete.

Abstract: A sealant composition may include a fly ash, hydrated lime, and at least one filler material selected from the group consisting of sand, barite, calcium carbonate, ground marble, iron oxide, manganese oxide, glass beads, crushed glass, crushed drill cuttings, ground vehicle tire, crushed rock, ground asphalt, crushed concrete, crushed cement, salt, ilmenite, hematite, silica flour, diatomaceous earth, a highly swellable clay miner, and any derivative thereof, and wherein the fly ash and hydrated lime together are present in an amount from about 0.25% to about 30% by weight of the sealant composition.

Abstract: The invention provides a cementing composition for use in oilfield application, wherein a significant amount of cement is left intentionally un-hydrated when the cement is set; such that said amount of un-hydrated cement becomes hydrated when the set cement is damaged.

Abstract: A method of manufacturing a cementitious composite including: (1) mixing an extrudable cementitious composition by first forming a fibrous mixture comprising fibers, water and a rheology modifying agent and then adding hydraulic cement; (2) extruding the extrudable cementitious composition into a green extrudate, wherein the green extrudate is characterized by being form-stable and retaining substantially a predefined cross-sectional shape; (3) removing a portion of the water by evaporation to reduce density and increase porosity; and (4) heating the green extrudate at a temperature from greater than 65° C. to less than 99° C. is disclosed. Such a process yields a cementitious composite that is suitable for use as a wood substitute. Particularly, by using higher curing temperatures for preparing the cementitious building products, the building products have a lower bulk density and a higher flexural strength as compared to conventional products.

Abstract: Partial oxidation of crumb rubber derived from environmental hazardous waste tires yields surface treated crumb rubber and a gas condensate which are used as blending stocks for making rubberized concrete with substantially improved mechanical strength as compared to the conventional rubberized concrete. The chemically more active rubber surface becomes hydrophilic, so it interacts with the hydrophilic surface of surrounding cement matrix much stronger. The gas condensate co-produced in the partial oxidation reactor consists of mainly active sulfur oxides (R—SOx—R) and serves as an excellent bonding agent to further enhance the bonding strength between the partially oxidized rubber particles and the cement mixes. The mechanically improved rubberized concrete is more versatile than conventional rubberized concrete.

Abstract: An inorganic board is obtained by extrusion molding of raw material composition, contains cement and silica-containing material in weight ratio ranging from 45:55 to 55:45, contains 3 to 8 wt %, with respect to total solids, of organic fibers. In the inorganic board, specific gravity ranges from 1.4 to 2.0, flexural strength is not lower than 20 N/mm2, dimensional change rate upon ten-day moisture release at 80° C. is not greater than 0.1%, dimensional change rate upon seven-day moisture absorption is not greater than 0.1%, seven-day dimensional change rate in an environment having carbon dioxide concentration of 5% is not greater than 0.1%. A method for producing the inorganic board comprises the steps of producing raw material composition that comprises cement, silica-containing material and organic fibers; producing mat by extrusion molding of the raw material composition; and subjecting the mat to autoclave curing at 140 to 200° C.

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: Use of two different methods, either each by itself or in combination, to enhance the stiffness, strength, maximum possible use temperature, and environmental resistance of such particles is disclosed. One method is the application of post-polymerization process steps (and especially heat treatment) to advance the curing reaction and to thus obtain a more densely crosslinked polymer network. The other method is the incorporation of nanofillers, resulting in a heterogeneous “nanocomposite” morphology. Nanofiller incorporation and post-polymerization heat treatment can also be combined to obtain the benefits of both methods simultaneously. The present invention relates to the development of thermoset nanocomposite particles.

Abstract: Cementing compositions for use in oilfield applications are designed such that, after setting, a significant amount of cement remains unhydrated. After placement in a subterranean well, the unhydrated cement remains dormant. If the cement sheath becomes damaged, the unhydrated cement hydrates upon exposure to formation fluids, thereby restoring zonal isolation in the wellbore. The compositions comprise emulsions that allow a substantial reduction of the water-to-cement ratio, yet the rheological properties remain suitable for placement in the well.

Abstract: Disclosed therein is an unvulcanized adhesive waterproof material using reclaimed rubber and a preparation method thereof, and more particularly, an unvulcanized adhesive waterproof material using reclaimed rubber and a preparation method thereof, where reclaimed rubber is added to a softener, a tackifier, a filler, an SBS resin, a PVA pressure sensitive adhesive, etc. and subjected to mechanically forced mixing to form a highly adhesive material, which is then applied on asphalt sheets, HDPE sheets, nonwoven fabric, PE foam, or the like according to the intended use purpose to form a waterproof sheet.

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: Methods and compositions are provided that relate to cement compositions comprising sub-micron calcium carbonate and latex. An embodiment includes a cement composition comprising: cement, water, sub-micron calcium carbonate having a particle size in a range of from greater than 100 nanometers to about 1 micron, and latex.

Abstract: Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, sulfur, and non-surfactant additives based on wax chemistry. The compositions are capable of being performance graded and being used in warm mix asphalt applications.

Abstract: A non-aqueous blend composition for treating a porous material comprising triacylglycerides obtained from vegetable oils and containing a fatty acid component and a polystyrene dissolved in the triacylglycerides to form a blend composition, the polystyrene component being present in the blend composition in an amount of from about 1% to about 40% by weight of the fatty acid component.

Abstract: The invention relates to a powdery building material composition, preferably a factory-made dry mortar, and in particular tile adhesives, joint fillers, knifing fillers, sealing slurries, repair mortars, leveling mortars, reinforcing adhesives, adhesives for thermal insulation composite systems (TICSs) mineral plaster or render, fine knifing composition, and screed systems, containing an ester of A) 2-ethylhexanoic acid and B) an alcohol having a boiling point of at least 160° C. The invention further relates to the production of said products and to the use of the esters according to the invention in powdery building material compositions to reduce dusting.

Abstract: A method of making a stable, sulfur binding composite containing elemental sulfur, a solid aggregate, and an organic modifier is claimed. The resulting sulfur composite compositions are also claimed.

Abstract: Methods and compositions are provided that relate to cement compositions and methods comprising sub-micron calcium carbonate and latex. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises cement, water, sub-micron calcium carbonate, and latex. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise cement, water, a sub-micron calcium carbonate, and latex.

Abstract: Water-soluble sulfo group containing copolymers use as stabilizers, rheology modifiers and water retention agents in aqueous building materials based on hydraulic binders, such as cement, lime, gypsum and anhydrite, and in water-based painting and coating systems are described. Processes of preparing the copolymers and methods of using them are also described.

Abstract: A water redispersible polymer powder is produced by drying an aqueous mixture of a carboxylated styrene butadiene polymer and a colloidal stabilizer which includes a polyvinyl alcohol modified with an alkyl end chain. The alkyl modified polyvinyl alcohol provides excellent redispersibility of the redispersible polymer powder without adversely affecting spray drying. Cement compositions such as mortars, which contain the redispersible polymer powder with the alkyl modified polyvinyl alcohol exhibit unexpectedly superior stability and an unexpectedly lower rate of mortar viscosity buildup which is advantageous for workability or troweling.

Abstract: The present invention relates to a novel polymer fiber obtainable by melt-spinning of a polymer, the use of the fiber and a process for the manufacture of the fiber.

Abstract: A non-aqueous blend composition for treating a porous material comprising triacylglycerides obtained, from vegetable oils and containing a fatty acid component and a polystyrene dissolved in the triacylglycerides to form a blend composition, the polystyrene component being present in the blend composition in an amount of from about 1% to about 40% by weight of the fatty acid component.

Abstract: A cementitious composition includes at least one cementitious material, at least one aggregate, from about 0.2% by weight to about 5% by weight of at least one superplasticizer, and from about 0.1% by weight to about 5% by weight of at least one water retention agent. The composition, upon mixing with an aqueous component, has an initial viscosity of no greater than about 150,000 cps, and a 20 minute viscosity of no less than about 250,000 cps.

Abstract: A lightweight structural concrete is composed of coarse structural aggregate sized between ¼? to ½? occupying 15% to 25% of total concrete volume, large non-structural lightweight aggregate such as expanded polystyrene bead of a particular size distribution and volume amount, small size non-structural lightweight aggregate or entrained air cells of another specific size distribution and volume amount, and a dense cementitious composition comprising cement binder, pozzolan, and fine structural filler no larger than concrete sand ASTM C33.

Abstract: The present invention relates to compositions and methods for producing high strength composites. In one embodiment, a polymer matrix and a naturally-occurring inorganic material are melt processed to produce a high strength composite. In a preferred embodiment, the naturally-occurring inorganic material is volcanic ash. High strength composites of this invention have particular utility as building materials and automotive components.

Abstract: A cement mixture is disclosed that includes an aqueous mending agent that is disbursed within but isolated from the cement mixture, wherein the aqueous mending agent will form molecular bonds with hardened cement that is formed by the cement mixture when the mending agent is permitted to flow within the hardened cement.

Abstract: Nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, process for the preparation and use thereof. The invention refers to nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, a process for the preparation thereof and their use as flameproofing agents for polymers such as polyesters, polyamides, polycarbonates, polystyrenes, polyethylene, polypropylene, phenolic and epoxy resins.