Abstract: A gypsum panel that incorporates a plant fiber other than paper is disclosed. The plant fiber material may be in the form of a facing material adhered to at least one side of the gypsum panel or in the form of loose fibers integrated with the gypsum panel as a matrix or both. Further, the plant fiber may be combined with conventional gypsum panel additives, is fully recyclable and environmentally sustainable. The present invention further relates to a method of making such a gypsum panel.

Abstract: A method for producing aggregates from fresh cement compositions, included concrete and residual concrete is disclosed, comprising the addition of a) flash setting accelerators and b) super-absorbent polymers to fresh unset cement compositions and blending this mixture until granular materials are formed.

Abstract: Exemplary methods and compositions of the invention for retarding the surface of a hydratable cementitious composition comprise the use of a non-bituminous cationic emulsion comprising at least one curing compound comprising an acrylic polymer, a paraffin, or a mixture thereof, to hinder evaporation of water; at least one set retarder; and at least one cationic surfactant.

Abstract: A water-resistant preformed polystyrene foam product with improved adhesive properties is provided. A water-resistant coating for preformed polystyrene products is also provided. The coating can be formulated as a sprayable composition and is easy to apply. Methods for making the coating formulations and water-resistant preformed polystyrene products are also provided.

Abstract: The present invention relates to binders based on latently hydraulic and/or pozzolanic materials that are activated by an addition of ternesite (C5S2$).

Abstract: The present invention is directed to cement-based coating compositions providing a stable, hard, fast setting and drying cement coating. In particular, the cement-based coating includes a low-flashing, VOC-exempt solvent in combination with cement materials, aggregates, resins and other optional components. Methods of making, application and use of the cement coating composition are further disclosed herein.

Abstract: Low embodied energy wallboards and methods for forming same are disclosed. A wallboard can include at least one industrial material in an amorphous phase and at least one alkali-activating agent. The amorphous phase industrial material can be slag, fly ash, silica fume, and/or lime kiln dust. The alkali-activating agent can be calcium oxide, magnesium oxide, potassium hydroxide, sodium hydroxide, calcium hydroxide, calcium carbonate, potassium carbonate, sodium carbonate, sodium sesquicarbonate, sodium silicate, calcium silicate, magnesium silicate and/or calcium aluminate. Additional wallboard components can include water, a foam filler, paper, industrial material in a crystalline phase, and/or polyethylene fibers, polypropylene fibers, and/or other synthetic fibers.

Abstract: The present invention provides a method for making sand compositions wherein manufactured sand particles are pretreated with a clay-mitigating polycation and blended with natural sand particles that have washed to remove fines such that at least 90% of the natural sand particles are retained on a 75 micron sieve. Methods of the invention also involve the use of the blended pretreated sand for making concrete wherein the sand is combined with cement, a polycarboxylate type dispersant, a further amount of clay-mitigating polycation compound, and at least one hydryoxyl or hydroxyl carboxylic acid or salt compound.

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: Compositions comprising a hydraulic binder such as cement or gypsum and a hydroxypropyl guar derivative that comprises unsubstituted linear or branched C6-C8 alkyl chains possess excellent water retention characteristics.

Abstract: Techniques and compositions for applying films to a variety of substrates, from water-borne coating compositions, are provided. The techniques involve providing desiccant and applying the desiccant with water-borne film-forming composition, in application to a substrate. The desiccant composition provides for take up of free water in of the film-forming composition, without total reliance on ambient conditions, to advantage. Compositions, methods, techniques and resulting constructions are described. The techniques can be applied in wet thick film applications, but are not limited to such applications.

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 roof sloping compound for creating an auxiliary slope over a wide variety of roof membranes and substrates. The compound includes a dry mixture of aggregate, cement and a redispersible dry polymer adapted to be mixed with water to define a substantially self-leveling consistency enabling the compound to be readily screeded into place in a desired thickness. The aggregate comprises dolomite or limestone and the redispersible dry polymer can comprise a binder based on a copolymer of ethylene vinyl acetate. In a lightweight embodiment of the compound, the aggregate includes lightweight fillers comprising perlite and low density glass granules and a superplasticizer is added to the dry mixture to reduce water demand.

Abstract: A water redispersible polymer powder may be produced by drying an aqueous mixture of a water insoluble film-forming polymer and a colloidal stabilizer comprising a chelating agent to obtain a water redispersible polymer powder, where the amount of chelating agent is at least 0.1% by weight, preferably at least 1% by weight, most preferably at least 3% by weight, based upon the weight of the water insoluble film-forming polymer. Dispersions or polymer compositions containing a chelating agent as a colloidal stabilizer exhibit an unexpectedly low viscosity which facilitates spray drying and permits use of high solids content dispersions with low pressure spray drying to increase production efficiency. The chelating agents are stable at high pH and so high pH spray dryable compositions containing them as a colloidal stabilizer may sit or be stored for prolonged periods of time prior to spray drying without loss of effectiveness of the colloidal stabilizer.

Abstract: The present invention relates to the use of a solid comprising at least one organosilane and a carrier material to hydrophobise mortars, wherein the organosilane has the formula R1Si(OR?)3 or R1R2Si(OR?)2 wherein R1 and R2 are the same or different and are a linear or branched C1- to C4-alkyl and/or alkenyl group, OR? is an acetoxy, a C1- to C4-alkoxy and/or a C2- to C6-methoxyalkoxy and/or ethoxyalkoxy group, and the carrier material is a solid at room temperature. The amount of cement in the final formulation is zero or less than 5 wt.-%, based on the total weight of the final formulation in the dry and uncured form. Claimed are also a powder comprising the silane and a carrier with the carrier being a water-soluble polymer, dry mortar formulations containing no or less than 5 wt.-% cement, based on the dry weight of the uncured mortar formulation, as well as processes to manufacture the formulations and/or compounds.

Abstract: An improved concrete mix composition and its associated method of manufacture. A traditional concrete mix is created by mixing cementitious material with sand, aggregate, admixture chemicals and water. After the traditional mix has been thoroughly mixed, reinforcement fibers of polyvinyl alcohol are added to the mix. The reinforcement fibers chemically bond to the cementitious material, thereby chemically integrating the reinforcement fibers into the mixture. The reinforcement fibers are supplied in multiple sizes. The reinforcement fibers include both long thick fibers and short thin fibers. In this manner, the smaller reinforcement fibers can fill voids around the larger, thicker reinforcement fibers. This helps prevent the development of stress cracks in the concrete and significantly increases the strength, durability, and life expectancy of the concrete.

Abstract: The present invention refers to a cement composition that contains dopamelanin, its precursors and/or its analogues as an additive in a maximum percentage of 30% of the cement. This additive substitutes water of the capillary nets. The mentioned cement mixture posses a water/cement relation of 0.2 to 0.4, optionally it can contain different sand and gravel proportions. This cement mixture generates strong chemical bonds, and increased scouring resistance, of at least 28% and a higher elastic resistance of the concrete, of at least 50%. Its cracking in early stages is very low or practically null. The present request also refers to the use of dopamelanin and/or its precursors and/or its analogues as an additive of the cement mixture that substitutes the capillary water proportion in the cementant mixture.

Abstract: Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. In one embodiment a method of cementing in a subterranean formation is described. The method comprises providing a set-delayed cement composition comprising pumice, hydrated lime, a cement set retarder, a synthetic smectite, and water; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation.

Abstract: The present invention provides a process to hydrophobize a mortar which is essentially free of cement, comprising the steps of mixing the mortar with an additive and water and subsequently allowing the mortar to cure, wherein the additive contains a component which is a rosin, a rosin derivative, a mixture of a resin with a rosin, or a mixture of a resin with a rosin derivative, wherein when the softening point of the component is higher than 60° C., the curing step is performed at a temperature that is not lower than the softening point of the component minus 20° C. and when the softening point of the component is 60° C. or lower, the curing step is performed at 40° C. or lower, and wherein the rosin and/or rosin derivative have an acid number of at least 50 mg KOH/g, and when the component is a mixture of a resin with a rosin, or a mixture of a resin with a rosin derivative, the resin at 23° C.

Abstract: Disclosed is an essentially shaped cementitious product wherein the direct tensile strength of the product as determined by ASTM C307 is at least 120% of a predicted direct tensile strength of the product per an equation selected from the group consisting of f?dt=0.06*f?c, f?dt=0.07*f?c, f?dt=0.08*f?c and f?dt=0.11*f?c, and wherein the flexural strength of the product as determined by ASTM C348 is at least 150% of a predicted flexural strength of the product per an equation selected from the group consisting of f?r=0.1*f?c, f?r=0.17*f?c, f?r=9.5*((f?c)?0.5) and f?r=7.5*((f?c)?0.5).

Abstract: A concrete reinforcing fiber assembly includes a plurality of first fibers and at least one co-fiber attached to at least some of the first fibers. The reinforcing fiber assembly has a water absorption capability of greater than 1.

Abstract: Embodiments relate to cementing operations and, more particularly, in certain embodiments, to settable compositions that comprise kiln dust and wollastonite and methods of use in subterranean formations. An embodiment discloses a method of cementing comprising: providing a settable composition comprising kiln dust, wollastonite, and water; and allowing the settable composition to set.

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 grout used in horizontal directional drilling including a silica material present in an amount of from about 50% to about 70%, bentonite present in an amount of from about 20% to about 30%, a carbon source present in an amount of from about 5% to about 15%, an inorganic alkaline material present in an amount of from about 0% to about 3%, a fluid loss additive present in an amount of from about 0% to about 1%, a polymeric dispersant present in an amount of from about 0% to about 1%, and a polymeric flow enhancer present in an amount of from about 0% to about 0.5%, all by weight of the grout composition. Methods utilizing the grout include placing conduit in a hole, forming the grout slurry, and placing the grout slurry adjacent to the conduct.

Abstract: The present invention pertains to a water-redispersible polymer powder composition based on at least one synthetic polymer and at least one natural latex. Preferably, the polymer powder contains up to about 90 wt. % of at least one water-insoluble, synthetic polymer, up to about 90 wt. % of least one natural latex, about 0 to 50 wt. % of at least one protective colloid, about 2 to 50 wt. % of at least one filler and/or anti-caking agent, as well as optionally further additives. In addition, the invention pertains to a process for the preparation of the polymer powder composition, the use thereof as an additive in building material compositions, as well as building material compositions containing the polymer powder composition.

Abstract: The present invention relates to a solid mixture and a coating or painting based on a sulfo-aluminous or sulfo-ferroaluminous clinker, the relative use as coating or painting of cementitious- and non-cementitious-based supports, in particular as coating or painting of cementitious-based pipes.

Abstract: A method of producing gypsum building board, in which there is added, to an aqueous gypsum slurry containing a water swellable clay, a basic water-soluble polymer having preferential affinity for clay. The slurry is allowed to set so as to form a board. The basic water-soluble polymer may be, for example, a polyvinyl alcohol or a polymer consisting essentially of carbon, nitrogen and hydrogen and having amine groups (which may be primary, secondary, tertiary or quaternary) in the polymer backbone and/or in side chains thereof.

Abstract: The present invention provides the early strengthening agent for hydraulic compositions containing a compound (a) obtained by reacting (A) one or more compounds selected from polyhydric alcohols having 3 to 20 hydroxy groups and alkylene oxide adducts thereof with (B) a sulfating agent, and the additive composition for hydraulic compositions containing the compound (a).

Abstract: A microcapsule, in particular of spherical shape, having a hollow capsule core encased by a capsule shell, characterized in that the capsule shell is at least partially made of hydrated cementitious material. A method for the production of a microcapsule includes the steps of: a) preparing of a suspension of particulate cementitious material in a solvent b) preparing a dispersion by mixing the suspension of step a) with an immiscible fluid so that (i) the suspension is present as a dispersed phase in the fluid as a dispersion medium or that (ii) the fluid is present as the dispersed phase in the suspension as the dispersion medium, such that the particulate material of the suspension adsorbs at least partially at a phase boundary between the fluid and the suspension, and c) allowing the particulate material adsorbed at the phase boundary to hydrate with the formation of an individual microcapsule.

Abstract: The present invention relates to an aqueous dispersion comprising (a) at least one (meth)acrylic polymer; (b) at least one vinyl acetate polymer selected from vinyl acetate homopolymer and vinyl acetate copolymers comprising in polymerized form vinyl acetate and ethylene; (c) water; and (d) optionally up to 50% by weight of an inorganic filler, based on the total weight of the aqueous dispersion, wherein the weight ratio of (meth)acrylic polymer(s) (a) to vinyl acetate polymer(s) (b) is from 70:30 to 30:70. The aqueous dispersion may be used as a joint compound or sealing compound.

Abstract: Provided herein are mixtures, emulsions and other additives for use in manufacturing gypsum wallboard. The mixtures and emulsions may be wax-based emulsions or wax-free mixtures or emulsions, with wax-based emulsions including water; at least one wax, a dispersant which may include sulfur or a sulfur-containing group, and a particular wetting agent or surfactant. Mixtures may also be prepared including water, a dispersant, and a particular wetting agent or surfactant. Gypsum slurries may be prepared using such emulsions and mixtures.

Abstract: Identification and quantification of mass-produced goods in articles, a dye-containing polymer dispersion having been added to the mass-produced goods. The polymer dispersions contain particles which are coded by a mixture of dyes, and the polymer dispersion particles are quantitatively determined.

Abstract: Compositions comprising a hydraulic binder such as cement or gypsum and a hydroxypropyl guar derivative that comprises unsubstituted linear or branched C6-C8 alkyl chains possess excellent water retention characteristics.

Abstract: The present invention provides a method for making sand compositions wherein manufactured sand particles are pretreated with a clay-mitigating polycation and blended with natural sand particles that have washed to remove fines such that at least 90% of the natural sand particles are retained on a 75 micron sieve. Methods of the invention also involve the use of the blended pretreated sand for making concrete wherein the sand is combined with cement, a polycarboxylate type dispersant, a further amount of clay-mitigating polycation compound, and at least one hydryoxyl or hydroxyl carboxylic acid or salt compound.

Abstract: A self-repairing concrete includes urea-formaldehyde resin polymer micro-capsules, in which the urea-formaldehyde resin polymer micro-capsules are mixed for a fixed function of micro-cracks. The quality mixture ratio is: concrete/micro capsules/water=100:1-15:15-50. The manufacturing method is weighing a full amount of water in a container, adding urea-formaldehyde resin polymer micro-capsules, stirring, until fully dispersed microcapsules; pouring the water into the mixing container, adding the corresponding quality of cement; stirring; adding sand and gravel filling materials, conducting worksite watering, ? volume for each time, vibrating, and air exhausting; until the paste filling mold.

Abstract: A cement retarder system for use in underground wells included a borate compound, an organophosphonate salt, and a copolymer formed from AMPS and a monomer selected from the group consisting of acrylic acid, acrylamide and mixtures thereof.

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: 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: 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: This invention relates to an early strengthening agent for a hydraulic composition, which contains a compound (A) selected from a specific glycol ether-based compound and a specific glycerin derivate-based compound, as well as an additive composition for a hydraulic composition, which contains the early strengthening agent and a specific phosphate polymer (B).

Abstract: Embodiments of the present invention are non-cementitious dry finish formulations that are suitable for flexible building materials and that provide a number of advantages. Such advantages include superior flexibility, ability to be pigmented to a custom color, ability to consistently provide a desired texture, increased efficiency of materials and reduction of waste.

Abstract: The present invention pertains to a water-redispersible polymer powder based on at least one modified natural latex. The modified natural latex can be obtained by mixing natural latex with at least one radical initiator and/or oxidizing agent, by mixing and reacting natural latex with at least one olefinically unsaturated monomer and with at least one radical initiator, and/or by mixing natural latex with at least one filler. Preferably, the polymer powder contains up to about 95 wt. % of least one natural latex, about 0 to 50 wt. % of at least one protective colloid, about 2 to 70 wt. % of at least one filler and/or anti-caking agent, as well as optionally further additives. In addition, the invention pertains to a process for the preparation of the polymer powder, the use thereof as an additive in building material compositions, as well as building material compositions containing the polymer powder.

Abstract: Disclosed is a composition, useful for a coating material, comprising coal ash and latex polymer and optionally a hydraulic binder, a superplasticizer, a rheology modifier, a filler, an aggregate, a foaming agent, a de-foaming agent, an accelerant and/or a retardant. The composition possesses favorable physicochemical properties and a low carbon footprint.

Abstract: A mix including at least one hydraulic and/or pozzolanic material and at least one water-soluble cationic polymer, the cationic polymer having a density of cationic charges greater than 0.5 meq/g and an intrinsic viscosity less than 1 dl/g, and the hydraulic and/or pozzolanic material not being clinker, nor limestone, nor gypsum, nor calcium sulphate, nor anhydrous calcium sulphate, nor hemi hydrated calcium sulphate, nor plaster, nor lime.

Abstract: The present invention relates to polymers P as dispersants, in particular as liquefiers, for hydraulically setting systems, and hydraulically setting systems comprising the polymer P. The polymer P comprises at least one acid unit, at least one ester unit, at least one unit containing a tetrahydrofurfuryl group, and optionally at least one amide unit.

Abstract: Disclosed is a process for diminishing the adsorption capacity of coal ash comprising inter alia admixing a quantity of coal ash with a quantity of latex polymer, ultimately to form a cementitious mixture. The invention is useful inter alia for relieving an environmental burden of coal ash disposal and for imparting favorable properties to the cementitious mixture.

Abstract: The invention relates to a method and system for monitoring and adjusting both air content and rheology (e.g., slump, slump flow) properties of a hydratable concrete mix contained within a concrete mixer. The system simultaneously tracks dosage of both rheology-modifying admixture (e.g., polycarboxylate polymer cement dispersant) and air control agent or “ACA” (e.g., air entraining agent) by reference to at least four nominal dose response (“NDR”) curves or profiles, which at least four NDR profiles are based on the respective behaviors of each of the ACA and rheology-modifying agent on air content and rheology.

Abstract: A composition for use in construction comprising pigment, dry cement and at least 30% powder polymer is provided. The composition has enhanced color retention and abrasion resistance and when applied to a surface the composition produces a smooth or textured, water-shedding properties that are aesthetically-pleasing. The coated surface as well as the method of preparing and applying the composition is also provided.

Abstract: The invention relates to an inorganic binder system comprising a) calcium silicate cement, b) calcium aluminate cement, c) at least one trifunctional polyalkylene glycol and d) optionally calcium sulphate. Additionally disclosed is the use of at least one polyalkylene glycol as an accelerator for an inorganic binder system comprising a) calcium silicate cement, b) calcium aluminate cement and d) optionally calcium sulphate.

Abstract: An embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising unexpanded perlite, cement kiln dust, and water; and allowing the settable composition to set. Another embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising ground unexpanded perlite, Portland cement interground with pumicite, and water; and allowing the settable composition to set. Yet another embodiment of the present invention comprises a settable composition comprising: ground unexpanded perlite; cement kiln dust; and water.