Abstract: Provided herein are methods for using hempcrete. In some instances, the present disclosure provides methods for 3D printing hempcrete. The 3D printed hempcrete may be printed in tandem with other materials, including hemp-based plastics. Hempcrete formulation may be 3D printed to form a building scaffolding.

Abstract: A method for grinding a solid in a vertical roller mill (VRM), comprising grinding at least one solid in the presence of a grinding stabilizing additive, wherein the grinding stabilizing additive comprises an alkanol amino acid compound or a disodium or dipotassium salt thereof having the structural formula (I): The definitions of variables R1, R2, and R3 are provided herein.

Abstract: A mortar for formation of a masonry element includes a co-product from the production of steel and an alkaline solution. A masonry element is formed from the mortar, the masonry element including at least one of a brick, a block, a paver, veneer stone, exterior or interior wall panels, roof tiles, faux slate, faux wood, decorative stone, and a poured structure. A method of forming a masonry element includes providing the mortar and compressing the mortar to form the masonry element.

Abstract: A cement slurry suitable for use in the presence of high salt concentrations may include a base fluid and dry components that include: a cementitious material, a pozzolanic material, a salt additive, and a salt-tolerant fluid loss additive. The salt-tolerant fluid loss additive may be at least one of the following zwitterionic polymers: (1) a copolymer of at least one anionic monomer and at least one cationic monomer, (2) a copolymer of at least one anionic monomer, at least one cationic monomer, and at least one zwitterionic monomer, (3) a homopolymer of a zwitterionic monomer, or (4) a copolymer of at least one zwitterionic monomer.

Abstract: Method to artificially agglomerate finely divided materials. A method to agglomerate finely divided material into aggregates, the aggregates being larger than the finely divided material, comprising the steps of (a) mixing finely divided material, binder and water in a mixer, (b) adding an agglomerating agent to the mix formed in step (a) and mixing constantly. Finely divided material is selected from the group consisting of cement, sand, clay, glass, slag, fly ash, stone powder, bypass dust, limestone, silica fume, crushed brick, brick powder and crushed stone or a combination thereof.

Abstract: A hydraulic binder includes at least 70% by weight of a solid mineral compound consisting of at least one mixture of silica, alumina and alkaline-earth metal oxides, the total sum of CaO and MgO representing at least 10% by weight of the solid mineral compound, and an activation system of which at least 30% by weight is a phosphoric acid-derived salt. Construction products can obtained from a mortar composition including such a binder.

Abstract: A cementitious binder comprises at least 90% by weight of a hydraulically-active material comprising ground granulated blast furnace slag (GGBS) and/or pulverised fuel ash (PFA), and at least 0.1% by weight of CaO in an activator composition for the hydraulically-active material. The cementitious binder does not comprise any Portland cement and is, therefore, more environmentally friendly. The binder further comprises a superplasticiser such as a polycarboxylate ether (PCE). A concrete, mortar, grout, screed or render may be formed from a mixture of the cementitious binder, aggregate particles, water and superplasticiser.

Abstract: A well cementing composition comprises water, an inorganic cement, a gas generating agent and a gas stabilizer. The gas generating agent may contain materials that release hydrogen gas, carbon dioxide gas or nitrogen gas or combinations thereof. The gas stabilizer comprises an aqueous mixture comprising polyglycols, oxyalkylates and methanol, or coco trimethyl ammonium chloride, or a mixture comprising ammonium fatty alcohol ether sulfate and ethylene glycol monobutyl ether, or combinations thereof. When used to cement a subterranean well, the compositions improve the compressive strength, increase the rate at which compressive strength develops, preserve cement homogeneity, or enhance cement expansion or a combination thereof.

Abstract: A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.

Abstract: Hydraulic binder comprising: at least one first calcium aluminosilicate derivative with a fineness of less than 6000 Blaine, slag microparticles with a fineness of greater than or equal to 6000 Blaine in an amount of between 1 and 35% of the total weight of the binder, preferably of between 5 and 15%, at least one source of calcium sulphate and at least one base in an amount of less than or equal to 1% of the total weight of the binder.

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. The light-weight cement mix composition comprises either slag cement, gypsum or a combination of slag cement and gypsum; Portland cement; silicon dioxide; calcium stearate; and metakaolin.

Abstract: Process for the preparation of cement/mortar/concrete compositions or systems, (for simplicity hereafter “cement” compositions or systems), featuring an improved compressive strength Rc namely at 28 days and 90 days, containing at least a “carbonate-based filler”, comprising at least one step where the said at least one “carbonate-based filler” is mixed or blended with at least one aluminosiliceous material, and the obtained “fillers blend” is treated with an efficient treating amount of at least one treating agent consisting of or comprising superplastifier(s); PRODUCT comprising at least a “carbonate-based “filler”” as defined and at least an aluminosiliceous material, what provides a “fillers blend”; cement compositions, use of the said “fillers(s) blends” and cement composition; cement elements or cement products” obtained from the said “cements compositions”, such as construction or building blocks.

Abstract: A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.

Abstract: Disclosed are encapsulated zinc compounds, together with methods for preparing and use the same. Also disclosed are methods for mixing the encapsulated zinc mixtures with a cement, and the resulting concrete compositions.

Abstract: Disclosed is a process for calcining active blending material involving feeding material outside of a kiln head and the blending material obtained. The process comprises feeding material from outside of kiln head of rotary kiln into inside of kiln hood and to grate cooler, wherein the material is coal gangue, shale, clay, peat, mud and the like which can form active cement component through low temperature calcining, and calcining the material at low temperature. Disclosed also is a cement production apparatus for carrying out the process provided, comprising feeder nose(s) provided on the kiln hood and/or grate cooler for feeding the material.

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: Method for the production of a building material, in particular mortar or concrete from an alkali activated hydraulic binder, in which at least one dispersing agent and at least one set modifier is added to the mix, in which at least the dispersing agent is added after mixing the binder with water.

Abstract: The current invention relates to the use of chitin nanocrystals and chitin nanocrystal derivatives. More specifically, the present invention relates to the use of chitin nanocrystals and chitin nanocrystals used in oil and gas operations. The chitin nanocrystals and chitin nanocrystals derivatives can be used as additives to cement and wellbore fluids and can be used to inhibit corrosion in pipelines, on downhole tools and on other oil and gas related equipment.

Abstract: The present disclosure provides improved water-repellent admixtures for cementitious materials. The water-repellent admixtures are incorporated during masonry processing to improve the water resistance of the final product. Solid water-repellent admixtures may be conveniently incorporated into pre-blended dry mortar mixes. In some variations, a pre-blended dry mortar mix comprises a cementitious material, an aggregate, and a dry water-repellent admixture, wherein the water-repellent admixture contains one or more materials selected from the group consisting of silanes, siloxanes, free fatty acids, fatty acid derivatives, particulated polymers, and particulated copolymers, and wherein the water-repellent admixture is present in the pre-blended dry mortar mix in a dosage from about 0.01% to about 1.00% by weight of the pre-blended dry mortar mix.

Abstract: The present disclosure relates to the use of an amino alcohol A and/or of a salt of the amino alcohol A as an additive when grinding at least one solid. The amino alcohol A has a structure according to formula I where: R1 and R2, independently of one another, each present an alkanol group including 2-4 carbon atoms, and b) R3 is a hydrocarbon group including 1-8 carbon atoms, and c) R3 is different from R1 and/or R2.

Abstract: The invention relates to a process for the production of binders by calcinating mineral raw material mixtures. In order to improve the process and the quality of the binders, it is proposed that oil shale and/or oil sand fills are converted by targeted agglomeration into particles of a certain size and consistency, wherein the water content for the mechanical stabilization of the agglomerate is adjusted to less than 25 percent and the agglomerates are calcinated to form binders at temperatures between 800 and 1500° C. under reductive conditions over the entire process with a Lambda value <1 in a vertical shaft furnace with updraft gasification. The binding properties are adjusted by the targeted addition of CaO-containing substances and/or existing sulfur fractions of the oil sands and/or oil shales are bound by means of the CaO that is present in the starting material and/or added.

Abstract: A hardening accelerator for mineral binders including an amino alcohol A and/or of a salt of said amino alcohol A, for example, cementitious binders, is provided. The amino alcohol A has a structure according to formula (I) where a) R1 and R2, independently of one another, each represent an alkanol group including 3-4 carbon atoms, b) R3 is an organic group including 1-8 carbon atoms, and c) R3 is different from R1 and/or R2.

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: An inorganic material board, which is a cured mat formed by dehydrating a slurry including 30 to 53 wt % of blast furnace slag, 2 to 5 wt % of gypsum having an average particle size of 200 to 2000 ?m, 5 to 11 wt % of alkaline material, 5 to 15 wt % of reinforcing fibers, and 31 to 50 wt % of inorganic admixture with respect to a total solid content, and in which a weight ratio of the blast furnace slag to the gypsum to the alkaline material is 1:0.05 to 0.15:0.15 to 0.35. It is desirable that the blast furnace slag has a specific surface area of 3000 to 5000.

Abstract: The invention relates to a mixture containing an alkali-activated aluminosilicate binder, said mixture, after hardening, containing at least 25% by weight of glass beads, based on the total mass. The hardened product has a surface which has very little tendency to soil and is easy to clean. A process for the preparation of the mixture according to the invention and the use thereof as joint filler are disclosed.

Abstract: A cementitious material manufactured by a process including adding, after pyroprocessing, at least one desugared molasses to at least one cementitious and/or pozzolanic material during manufacture of the at least one cementitious and/or pozzolanic material. A method of manufacturing a cementitious material including adding, after pyroprocessing, at least one desugared molasses to at least one cementitious and/or pozzolanic material during manufacture of the at least one cementitious and/or pozzolanic material.

Abstract: Methods and compositions for cementing operations that include pumice in geopolymer cement compositions comprising slag.

Abstract: A sulfur-steel slag aggregate concrete, and methods of preparing the sulfur-steel slag aggregate concrete and disposing of elemental sulfur, are disclosed. In embodiments, the sulfur-steel slag aggregate concrete includes elemental sulfur, steel slag aggregate, limestone powder, and sand. Modifiers, such as plasticizers, are not required and are not used in embodiments of the sulfur-sand limestone mortar. In embodiments of the method to prepare the sulfur-steel slag aggregate concrete, each of the elemental sulfur, limestone powder, steel-slag, and sand are heated to at least 140 C, then combined, and then allowed to solidify.

Abstract: An inorganic board contains, in a solid content ratio, 30 to 70 mass % of hydraulic material, 5 to 15 mass % of reinforcing fiber, and 1 to 30 mass % of wollastonite having a wet volume (after being allowed to stand for 30 minutes) of 15 to 45 ml. Also, a method includes: step of producing a slurry containing hydraulic material, reinforcing fiber, and wollastonite; step of producing a sheet by dehydrating the slurry; and step of pressing and curing the sheet; wherein, in the step of producing a slurry, a composition of the slurry is set so as to contain, in a solid content ratio, 30 to 70 mass % of hydraulic material, 5 to 15 mass % of reinforcing fiber, and 1 to 30 mass % of wollastonite having a wet volume (after being allowed to stand for 30 minutes) of 15 to 45 ml.

Abstract: Disclosed are encapsulated zinc compounds, together with methods for preparing and use the same. Also disclosed are methods for mixing the encapsulated zinc mixtures with a cement, and the resulting concrete compositions.

Abstract: An application for a pre-mixed mortar, stucco or masonry composition includes a approximately 75% sand and 25% of a light-weight cement mix comprising slag cement, ground granulated blast furnace slag, sodium tall oil, sodium stearate, sodium C14-16 Alpha Olefin, linear alkyl benzene; and silicon dioxide.

Abstract: The present invention relates to an alkali-activated binder which can be used as a binder for replacing cement, and more particularly, to an alkali-activated binder, and to mortar, concrete, concrete products, and wet loess paving material comprising the binder, in which inorganic sodium-free alkaline materials are contained to reduce the total amount of Na2O and K2O in concrete, thus improving the workability and the strength stability and inhibiting the alkali-aggregate reaction.

Abstract: An aggregate and/or filler extracted from slag, a method for the production thereof, and the use thereof.

Abstract: Compositions are disclosed that comprise at least one compound of formula IV: wherein the variable are as defined in the specification. The compositions are antimicrobial and optionally curable, and useful, inter alia, in dental, medical, and industrial applications for reinforcement and/or adhering two surfaces together.

Abstract: A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.

Abstract: Provided herein are compositions, methods, and systems for cementitious compositions containing calcium carbonate compositions and aggregate. The compositions find use in a variety of applications, including use in a variety of building materials and building applications.

Abstract: A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.

Abstract: A novel binder system comprising at least one latent hydraulic binder, at least one amorphous silica, optionally at least one reactive filler and at least one alkali metal silicate is proposed. It was surprisingly found that the binder system according to the invention hardens in the form of a hybrid matrix which is acid-resistant, water-resistant and alkali-resistant. The binder system can be used for the production of a hydraulically setting mortar which, after setting, hardening for seven days and subsequent storage for three days in acid, base and/or water, has compressive strengths of more than 15 N mm?2, preferably more than 20 N mm?2 and in particular more than 25 N mm?2, according to DIN EN 13888.

Abstract: The invention encompasses an ultrafine NFS powder wherein the particle size is sufficiently small as to increase the proportion of the reactive glassy silicate phase in the NFS, methods of making the ultrafine NFS powder, and cementitious products which use the ultrafine NFS powder. The invention also encompasses pozzolanic binders produced by fine grinding non-ferrous smelter slags, as well as methods for processing the non-ferrous slags wherein various chemical additives, such as pH increasing additives, are added to the binders to increase the strength of compositions for uses such as mine backfill or grout mixtures.

Abstract: An application for a pre-mixed mortar, stucco or masonry composition includes a approximately 75% sand and 25% of a light-weight cement mix comprising a cement (either Portland cement or Gypsum), ground granulated blast furnace slag, sodium tall oil, sodium stearate, sodium C14-16 Alpha Olefin, linear alkyl benzene; and silicon dioxide.

Abstract: Cement compositions and methods for making cement compositions are provided. The cement compositions can comprise at least one oxide having a particle size of less than about 600 nm. The methods for making cement may include: providing a mixture of compounds containing the required calcium, silicon, aluminum, and iron to provide at least one of tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite, other calcium silicates, aluminates, ferrites, and silicates or combinations thereof; adding a fuel source and an oxidizer to the mixture of compounds; and heating the mixture of compounds, the fuel source, and the oxidizer such that the mixture of compounds, the fuel source, and the oxidizer ignite to form the at least one tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite, or combinations thereof.

Abstract: The present invention relates to a cement-free alkali-activated binder. More particularly, the present invention relates to a cement-free alkali-activated binder having a novel combination ratio, which can improve the compressive strength of mortar and concrete in which the cement-free alkali-activated binder is used as a binding material instead of cement, and which can solve the low field applicability of mortar and concrete in terms of quick setting characteristics, fluidity loss, economic efficiency and the like, and to mortar or concrete comprising the same. The cement-free alkali-activated binder can improve field applicability by controlling the content and combination ratio of an alkali activator included in the cement-free alkali-activated binder, and can solve the problems of the toxicity of cement, the carbon dioxide (CO2) produced during the manufacturing of cement and the exhaustion of natural resources due to the production of cement.

Abstract: Select geopolymers are mixed, at high shear, with fluid fine tailings from an oil sand operation to increase the yield strength of deposits of the geopolymer-treated fluid fine tailings stream and to enhance the dewaterability of the deposits for meeting the regulated, minimum undrained shear strength of 5 kilopascals (kPa) in the fluid fine tailings deposited in the previous year.

Abstract: A method of servicing a wellbore in a subterranean formation, comprising preparing a cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag, vitrified shale, calcium sulfate hemi-hydrate or combinations thereof, and placing the cement composition in the wellbore. A cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag, vitrified shale, calcium sulfate hemi-hydrate or combinations thereof. A cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag.

Abstract: A cementitious material manufactured by a process including adding, after pyroprocessing, at least one desugared molasses to at least one cementitious and/or pozzolanic material during manufacture of the at least one cementitious and/or pozzolanic material. A method of manufacturing a cementitious material including adding, after pyroprocessing, at least one desugared molasses to at least one cementitious and/or pozzolanic material during manufacture of the at least one cementitious and/or pozzolanic material.

Abstract: A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.

Abstract: The present invention relates to mortars which include a blend of cellulose ether compounds and exhibit improved pot life, water retention capability, and open time, as well as high tensile strength values. These mortars can be used in the fabrication of external insulation finishing systems (EIFS), particularly in hot environments. The cellulose ether blend includes hydroxyethylcellulose ether and methylhydroxyethylcellulose ether. Water soluble anionic polyacrylamide and hydroxypropyl starch can also be added to the mortar.

Abstract: Solid, flowable compositions comprising a dry, solid particulate material and a flow enhancing additive. The dry, solid particulate material may be cementitious, non-cementitious material, or a combination thereof. The flow enhancing additive comprises a solid, particulate absorbent material having absorbed thereon: a flow inducing chemical, ethylene glycol, and water. In some cases the flow inducing chemical comprises an organic acid, a salt of an organic acid, an acid anhydride, or a combination thereof.

Abstract: The invention concerns the use of a carbohydrate-based compound as a setting accelerator in a pumpable geopolymeric suspension for oil and/or gas industry applications, said suspension further comprising ‘an aluminosilicate source, a carrier fluid, and an activator, and methods of preparing such suspensions. In particular, the suspension according to the invention is used for well primary cementing operations and/or remedial applications.

Abstract: A cement product incorporating nanocrystalline cellulose and cellulose fiber throughout the product and a method of making the product.