| CONSTRUCTION RESEARCH & TECHNOLOGY GMBH Patent applications |
| Patent application number | Title | Published |
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| 20210179493 | METHOD FOR TREATMENT OF SLAG - The invention relates to a process for the wet milling of slag, wherein more than 100 kWh of milling energy are introduced per metric ton of slag and the weight ratio of slag to water is 0.05-4:1 and from 0.005 to 2% by weight, based on the slag, of a milling auxiliary which comprises at least one compound selected from the group consisting of polycarboxylate ether, phosphated polycondensation product, lignosulfonate, melamine-formaldehyde sulfonate, naphthalene-formaldehyde sulfonate, monoglycols, diglycols, triglycols and polyglycols, polyalcohols, alkanolamine, amino acids, sugar, molasses and curing accelerators based on calcium silicate hydrate is added to the material being milled before or during the milling. | 06-17-2021 |
| 20150322339 | USE OF POLYAMINE AS ANTI-STICKING ADDITIVE - Method of use of at least one polyamine compound as sticking decreasing additive for soil with a clay content of more than 10% by weight. | 11-12-2015 |
| 20150232388 | HYDRAULIC COMPOSITION - The invention relates to a composition comprising, based on the dry weight of said composition, (A) 10 to 70% by weight of one or more hydraulic binder and (B) 20 to 85% by weight of one or more filler, wherein the composition contains 0.05 to 5% by weight, based on the amount of the hydraulic binder, of at least one terpenoid alcohol, wherein the terpenoid alcohol is not terpineol or borneol. Additionally disclosed is a hardened product made by the composition and the use of at least one terpenoid alcohol in a composition, comprising hydraulic binder and filler, to reduce the shrinkage of the wet composition during curing. | 08-20-2015 |
| 20150183688 | CLAY-COMPATIBLE ADDITIVE FOR CONSTRUCTION CHEMICALS - The invention relates to a monomer-based condensation product, wherein the monomers comprising at least one monomer having an aldehyde moiety and at least one monomer having a ketone moiety, which is carrying at least one non-aromatic moiety and the condensation product comprises at least one moiety from the series of phosphono, sulphino, sulpho, sulphamido, sulphoxy, sulphoalkyloxy, sulphinoalkyloxy and phosphonooxy groups and/or salts thereof, wherein the monomers further comprising gallic acid. Additionally disclosed are the preparation and the use of these condensation products in chemical products for the construction industry. | 07-02-2015 |
| 20140377013 | USE OF POLYAMINE AS ANTI-STICKING ADDITIVE - Method of use of at least one polyamine compound selected from the group consisting of diethylenetriamine: triethylenetetramine (TETA), tetraethylengentemine (TEPA). pentaethylenehexamine (PEHA), hexaethyieneheptamine and heptaethyleneoctamine sticking decreasing additive for soil with a day mineral content o more than 10% by weight. | 12-25-2014 |
| 20140353551 | DISPERSANT FOR INORGANIC PARTICLES - The invention relates to dispersants for inorganic particles, preferably for hydraulic binders, which comprises the following structural units: i) at least one triazine structural unit, ii) at least one polyalkylene glycol structural unit, iii) and at least two phosphoric ester structural units, and also relates to a process for preparing the dispersants, to building material mixtures comprising one or more dispersants and one or more inorganic binders. The invention relates to the use of the dispersants as a water reducing agent, as a means for reducing the viscosity and for enhancing the early strengths of aqueous inorganic binders, and also to the use as a grinding aid in the production of cement. | 12-04-2014 |
| 20140318069 | COMPOSITE THERMAL INSULATION SYSTEM - The invention relates to an insulated building wall comprising a composite thermal insulation system and an external building wall, where the composite thermal insulation system is affixed to the side of the building wall facing away from the building, the composite thermal insulation system comprising an at least two-layer thermal insulation cladding, with at least two layers each containing from 25 to 95% by weight of aerogel and from 0 to 75% by weight of inorganic fibres and from 0 to 70% by weight of inorganic fillers, wherein the layers of the thermal insulation cladding are joined to one another by means of an inorganic binder and the composite thermal insulation system has a gross calorific potential of less then 3 MJ per kilogram. | 10-30-2014 |
| 20140302737 | WATER-PROOF COATING SYSTEM FOR REFLECTING SOLAR RADIATION AND WATER-BORNE COATINGS FOR FORMING THE WHITE DECORATIVE AND REFLECTIVE LAYER IN THE COATING SYSTEM - A water-proof coating system for reflecting solar radiation, which comprises optionally a base layer on a substrate and a reinforcing layer on the base layer; a white reflective and water-proof layer on the substrate or on the reinforcing layer; and a white decorative and reflective layer on the white reflective and water-proof layer; wherein the decorative and reflective layer is formed from a water-borne coatings comprising acrylic polymers, white infrared-reflective pigments and UV cross-linking agents. Water-borne coatings for forming the white decorative and reflective layer in the coating system, which comprise acrylic polymers, white infrared-reflective pigments and UV cross-linking agents. Said coating system can reflect solar radiation with high efficiency and effectively prevent water from penetrating through, has strong stain resistance and good weather resistance; has strong adhesion to various substrates. Said water-borne coatings can be applied easily, and are environment friendly. | 10-09-2014 |
| 20140299217 | PIPE REPAIR METHOD AND REPAIRED PIPE - An in situ method of repairing an underground conduit or pipe is disclosed. The method of repairing includes positioning a reinforcing fabric within the pipe being repaired, spaced apart from the inner surfaces of the pipe, and infiltrating the fabric with a bleed resistant cementitious composition. | 10-09-2014 |
| 20140216304 | PROCESS FOR PREPARING ADDITIVE FOR CEMENTITIOUS MATERIALS, ADDITIVE AND MIXTURE COMPRISING ADDITIVE - This invention is directed to a process for preparing an additive for cementitious materials, in particular an admixture for paste, grout, mortar and concrete applications as well as a cement additive for cement production by grinding, from a sugar-based material. The process comprises a step of the sugar-based material being subjected to a sulfonation treatment. | 08-07-2014 |
| 20140199488 | Cement Hydrate Products For Sprayed Concrete - Process for the preparation of a sprayable inorganic binder composition containing as main components water, aggregates, inorganic binder, set accelerator, characterized in, that a cement hydrate products containing component is added before and/or at the spray nozzle. | 07-17-2014 |
| 20140162520 | WATER-PROOF COATING SYSTEM FOR REFLECTING SOLAR RADIATION AND WATER-BORNE COATING FOR FORMING DECORATIVE AND REFLECTIVE LAYER IN COATING SYSTEM - A water-proof coating system for reflecting solar radiation, which comprises optionally a base layer on a substrate and a reinforcing layer on the base layer; a white reflective and water-proof layer on the substrate or on the reinforcing layer; and a decorative and reflective layer on the white reflective and water-proof layer; wherein the decorative and reflective layer comprises colored infrared-reflective pigments. Water-borne coatings for forming a decorative and reflective layer in the coating system, which comprise acrylic polymers, colored infrared-reflective pigments and UV cross-linking agents. Said coating system can reflect solar radiation with high efficiency and effectively prevent water from penetrating through; has strong stain resistance and good weather resistance; has strong adhesion to various substrates; and also offers diversified colors for choosing. Said water-borne coatings can be applied easily, and are environment friendly. | 06-12-2014 |
| 20140107238 | Method For Manufacturing A Cementitious Composition - A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with steam in-situ during manufacture of a cementitious composition or article, wherein the aqueous slurry optionally further includes an admixture therefor. A method of manufacturing a cementitious composition or article includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with steam proximate to and/or during said manufacturing of the cementitious composition to create expanded polymeric microspheres; (ii) pre-wetting the expanded polymeric microspheres; and (iii) mixing the pre-wetted, expanded polymeric microspheres with cement and water to form the cementitious composition, wherein the aqueous slurry optionally further comprises an admixture therefor. | 04-17-2014 |
| 20140066546 | Powdered Accelerator - The present invention relates to a solid composition containing calcium silicate hydrate and at least one water-swellable polymer which can form a hydrogel, and also to a process for preparing the composition, to the use thereof as a setting accelerator, and as a grinding aid in cement production. It also relates to building material mixtures which comprise the compositions. | 03-06-2014 |
| 20140060387 | Method For Preparing Admixture Blends For Construction Material On Site And A Micro-Plant For Implementing The Method - The present invention discloses a method for preparing admixture blends for construction material on site, which comprises the steps of: a) selecting at least one kind of raw material for formulating out an admixture blend and providing a water supply on site; b) controlling the usage amount of said at least one kind of raw material and water on site according to construction material performance requirement; c) mixing the predetermined amount of raw materials and water on site; and d) directly supplying the obtained admixture blend to a manufacturing apparatus for construction material on a construction material manufacturing site, wherein the whole process of preparation is completed with the online control from a computer. The present invention also discloses a mobile micro-plant for implementing the method. | 03-06-2014 |
| 20140045969 | Curable Composition - The invention relates to a composition comprising (A) at least 5% by weight of en organic prepolymer P having at least two water-crossilnkable organosilicon end groups, (B) 0.01% to 3.0% by weight of boric acid and/or bone ester, and (C) 0.01% to 3.0% by weight of an amine component. Additionally disclosed is a method for the curing of these compositions and also the use of boric acid and/or boric esters and an amine component a condensation catalyst. | 02-13-2014 |
| 20130331539 | PROCESS FOR PRODUCING POLYCONDENSATION PRODUCT - The present invention relates to a process for producing a polycondensation product by polycondensing monomers including (A) an aromatic or heteroaromatic compound containing a polyether chain, (B) optionally an aromatic or heteroaromatic compound which is different from monomer (A), and (C) an aldehyde, in the presence of a protonation catalyst, wherein the aldehyde is provided by a fast-releasing aldehyde source and a slow-releasing aldehyde source. | 12-12-2013 |
| 20130319294 | Use Of Compounds Containing Aluminium Oxide And Silicon Oxide For Producing A Hydrophilic Building Product - The use of a binder system comprising compounds containing aluminium oxide and silicon oxide for producing a hydrophilic building product, characterized in that the sum of the oxides calculated as Al | 12-05-2013 |
| 20130303804 | Process For Preparing A Thixotroping Agent And Use Thereof - The invention provides a process for preparing a thixotropic agent based on a urea derivative, in which the components α) comprising at least one amine and β) comprising at least one isocyanate, are supplied separately to a mixing means and are mixed with one another, the reaction mixture being discharged by spraying or squirting from the mixing means. Further disclosed is the use of the thixotropic agent in a fluid system. The process is especially suitable for preparing adhesives and sealants. | 11-14-2013 |
| 20130303690 | Sealant and Adhesive Using Green Prepolymer - A polyurethane prepolymer comprising the reaction product of a reactant formulation comprising a polyol entirely derived from a natural oil; a natural oil-petroleum blend polyol; an isocyanate, at least one catalyst, drying agent, and plasticizer, wherein the prepolymer has a bio-based content of from about 15% to about 75% by weight. The prepolymer may be used in adhesive, or sealant compositions. | 11-14-2013 |
| 20130267637 | Reduction In Modulus of Polyurethane Sealants and Adhesives - Low modulus, polyurethane sealant or adhesive compositions and a method of reducing the modulus of a polyurethane sealant or adhesive composition, including adding a modulus reducing additive of at least one of rosin esters, hydrogenated rosin esters, or mixtures thereof, to a sealant or adhesive composition including a polyurethane prepolymer, optionally having a bio-based content of from about 15% to about 75% by weight. | 10-10-2013 |
| 20130206033 | Alkali-Activated Aluminosilicate Binder Containing Glass Beads - 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. | 08-15-2013 |
| 20130199699 | Conductive Adhesive For A Floorcovering - The invention relates to an adhesive for a floorcovering, comprising, based on the entire adhesive, from 5 to 30% by weight of at least one component selected from graphite and carbon black and/or from 0.2 to 3% by weight of conductive carbon fibers, from 25 to 50% by weight of a polyurethane dispersion with solids content of from 25 to 65% by weight, where less than 5% by weight of an aqueous dispersion of polyhydroxyether polymer, grafted with at least one acrylic or methacrylic monomer, with solids content of from 25 to 40% by weight, is present. | 08-08-2013 |
| 20130199416 | CEMENTITIOUS COMPOSITION AND ADMIXTURE - 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. | 08-08-2013 |
| 20130139729 | Providing Freeze-Thaw Durability to Cementitious Compositions - A cementitious freeze-thaw damage resistant composition includes hydraulic cement, and coffee grounds particles having a volume-weighted mean particle size of from greater than 50 μm to about 2000 μm. A method for preparing a freeze-thaw damage resistant cementitious composition includes forming a mixture of water, hydraulic cement, and coffee grounds particles having a volume-weighted mean particle size of from greater than 50 μm to about 2000 μm. The coffee grounds particles act to increase the freeze-thaw durability of the cementitious material. A cementitious freeze-thaw damage resistant composition comprising hydraulic cement, and organic particles comprising at least one of coffee grounds particles, leaf powder particles, starch microcontainers, ground tea leaf particles, or cork powder particles. | 06-06-2013 |
| 20130097954 | METHOD FOR THE PRODUCTION OF A TEXTILE-REINFORCED RIGID FOAM SUPPORTING ELEMENT, AND RIGID FOAM SUPPORTING ELEMENT - The fabric-reinforced rigid foam supporting element claimed having a total thickness of <10 mm is characterized in that it has been produced completely by machine. As a result of the specific features and the preferred production process, supporting elements which have a low thickness and do not differ in terms of their stiffness and strength from supporting elements having thicknesses above 10 mm are obtained. They are therefore outstandingly suitable as insulation materials in building and construction, in particular for constructions, and also for thermal and and/or acoustic insulation. | 04-25-2013 |
| 20130059072 | Polyurethane Systems Having Non-Sag, Paintability, And Primerless Adhesion On Concrete - A two part non-sag polyurethane construction sealant or adhesive is provided with the properties of low modulus, high elongation, good paint adhesion, and primerless adhesion to concrete surfaces. The sealant or adhesive is prepared using a polyol, and optionally an epoxy silane and/or a melamine compound, in the base component of the formulation; and a prepolymer reaction product including the residues of xylenol or xylenol and an additional polyol, and a polymeric isocyanate, an aromatic diisocyanate, or a polymeric isocyanate and an aromatic diisocyanate, and optionally an epoxy silane and/or a melamine compound, in the activator component of the formulation. | 03-07-2013 |
| 20130042557 | EXTERIOR FINISHING SYSTEM AND BUILDING WALL CONTAINING A CORROSION-RESISTANT ENHANCED THICKNESS FABRIC - A corrosion-resistant lath is provided for use in exterior finishing systems, such as stucco systems and exterior insulation and finish systems (“EIFS”). The lath includes in a first embodiment an open, woven fabric comprising weft and warp yarns containing non-metallic fibers, such as glass fibers. A portion of the weft yarns are undulated, resulting in an increased thickness for the fabric. The fabric is coated with a polymeric resin for substantially binding the weft yarns in the undulated condition. This invention also includes methods for making an exterior finish system and building wall including an exterior finish system using such a lath. | 02-21-2013 |
| 20130035422 | Method For Qualitatively And Quantitatively Identifying Bulk Goods - 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. | 02-07-2013 |
| 20120298013 | Strength Improvement Admixture - A strength improvement admixture composition is provided that increases the compressive strength of cementitious compositions without negatively increasing the setting time. The admixture comprises the components of a polycarboxylate dispersant, a set retarder, and a strength improvement additive. | 11-29-2012 |
| 20120216724 | Sulphonic Acid And Aromatic Groups Containing Hardening Accelerator Compositions - The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction being carried out in the presence of an aqueous solution of a water-soluble polymer, which contains sulphonic acid and/or sulphonate groups and aromatic groups. The invention concerns also the reaction product of said processes and its use as hardening accelerator for building materials. | 08-30-2012 |
| 20120208932 | Polycondensates Having Isobutylene Side Chain - The invention relates to a polycondensation product based on aromatics and/or heteroaromatics and aldehydes, said polycondensate containing at least one structural unit (I) having a polyisobutylene side chain and an aromatic or heteroaromatic and at least one structural unit (II) having an ionizable functional group and an aromatic or heteroaromatic, structural unit (I) not being the same as structural unit (II) and the aldehyde used having no acid or ester functions. A process for the preparation and the use as an additive for hydraulic binders are disclosed. | 08-16-2012 |
| 20120085266 | Accelerator Mixture and Method of Use - The invention concerns an accelerator mixture which contains aluminium in oxidation state 3, sulphate and hexafluorosilicic acid, a process for the preparation of said accelerators and the use of said accelerators for the coating of substrates with concrete or mortar. Furthermore the invention relates to concrete or mortar containing accelerators according to the invention and the hardened layers produced by applying the accelerators to concrete or mortar. The invention relates also to the use of hexafluorosilicic acid as a stabilizer. | 04-12-2012 |
| 20110313177 | 2-Oxo-1, 3-dioxolane-4-carboxylic Acid and Derivatives Thereof, Their Preparation and Use - 2-Oxo-1,3-dioxolane-4-carboxylic acid and derivatives thereof, according to the following formula, | 12-22-2011 |
| 20110308193 | Packaged Roll Construction Material - A packaged construction material includes a housing, a roll of construction material such as a roll of building wall sheathing fabric located within the housing and a hanging device engaged with the housing for hanging the packaged construction material on the belt or other article of clothing worn by a construction worker or on a scaffolding or other support structure. A kit including the packaged rolled construction material and a sufficient amount of fluid membrane to be used on combination with the rolled construction material to impart a secondary weather barrier to a building wall substrate is also provided. | 12-22-2011 |
| 20110301275 | Copolymer Containing Acid Building Blocks and Various Types of Polyether Building Blocks - The invention relates to a copolymer comprising
| 12-08-2011 |
| 20110217119 | Zone Equidistance Control Expansion Joint System - A modular-type expansion joint system for bridging a gap that is located between spaced-apart structural members. The expansion joint system may be utilized, for example, in bridges, highways, and tunnel constructions where gaps are formed between spaced-apart, adjacent concrete sections. The expansion joint system includes vehicular load bearing members and support members. Seals are located between the vehicular load bearing members. The expansion joint system includes zones of differing movement capabilities in response to displacement events. | 09-08-2011 |
| 20110197528 | Exterior Finish System - Disclosed is an exterior finish system for building structures that includes a water pervious adhesive for securing an insulation layer to a water resistive barrier applied to a building wall substrate. Also disclosed is a building structure such as a building column or wall that includes the finish system and a method of using the finish system to assemble a building structure such as column or wall. | 08-18-2011 |
| 20110139037 | Powdery Building Compound - A delayed action powdery building compound is provided, consisting of a reactive support material and a liquid polymer component applied to the support material. The inventive compound can contain the support material in the form of hydraulic (latent) binder, inorganic additives and/or organic components, and the polymer component for example in the form of polyvinyl alcohols, polyvinyl acetates and MPS-based polymers. The component makes it possible to obtain the delayed liberation of the support material in an aqueous building chemical mixture as a result of a time-depending separation of the polymer component from said support material. The powdery building compound also makes it possible to carry out a time-controlled hardening of hydratable building material mixtures and to obtain a time-controlled internal drying of aqueous dispersion-based materials. | 06-16-2011 |
| 20110135387 | EXPANSION JOINT SEALING SYSTEM - An expansion joint sealing system may be used to provide a continuous and seamless waterproof membrane across a gap in an expansion joint. The expansion joint sealing system includes sealing members that are provided with a keyway for accepting and interlocking a coating membrane. Also disclosed are an expansion joint including spaced apart structural members and the sealing system and a method for sealing a gap between two spaced apart structural members. | 06-09-2011 |
| 20110034572 | VOLUME TILE ADHESIVE - The use of a mixture consisting of a) alkaline hydraulic binder, b) cellulose ether, c) blowing agent, d) filler as a tile adhesive is claimed, wherein the blowing agent c) comprises peroxo compounds and/or percarbonates and/or aluminum powder and wherein the tile adhesive mixture has a maximum and stable volume increase of 50% by volume within five minutes after admixing of water. This mixture, which may also comprise further additives such as, for example, retardants, antifoams and polymer dispersion powders, in addition to said four components, has the advantage that the blowing agent used reacts virtually completely within 5 min and thus leads to a volume increase of the tile adhesive mixture of not more than 50% by volume. After it has hardened, the mixture has a high intrinsic strength but also sufficient bonding strength and adhesive strengths with respect to the tile/substrate system. | 02-10-2011 |
| 20110033625 | USE OF FLEXIBLE SEALING SLURRIES FOR THE AFTERTREATMENT OF FRESH CONCRETE SLABS - The use of a slurry-type seal coating which is flexible after hardening, containing, as component a), a system having a proportion of hydraulic binder and, as component b), an elastifying plastic, for aftertreatment, over the whole area, of a concrete body having a residual moisture content >2 CM % is claimed. The claimed slurry-type seal coatings which contain, as component a), preferably a cement mortar and, as component b), a homo-, co- or terpolymer in the preferred form of a liquid polymer dispersion result in a higher strength and less shrinkage of the concrete body surface treated with them. The concrete bodies treated therewith are protected against seepage water, pressurised water and water splashes, in particular in areas exposed to wetness. | 02-10-2011 |
| 20100324173 | AQUEOUS DISPERSIONS OF SILICA FOR INCREASING EARLY STRENGTH IN CEMENTITIOUS PREPARATIONS - Dispersion which is free of binders and which contains silica and at least one superplasticizer, the silica being a precipitated silica having a surface area greater than 50 m | 12-23-2010 |
| 20100119180 | PAPER VALVE SACK WITH INNER CATCH - A description is given of a paper valve bag with an inner panel which is located at the paper-bag end which is located opposite the paper-bag end with valve, and, on its surface which is directed toward the sack interior, the inner panel has an opening aid which has a higher modulus of elasticity than the inner panel. The opening aid, which may be a tear-open strip or a tear-open thread, projects beyond the inner panel at at least one surface-area end of the latter. Such paper valve bags are used for fine-grain, pulverulent and/or free-flowing materials, in particular ready-to-use mortar. | 05-13-2010 |
| 20090292041 | AMINE CONTAINING STRENGTH IMPROVEMENT ADMIXTURE - A strength improvement admixture composition is provided that increases the compressive strength of cementitious compositions without negatively increasing the setting time. The admixture comprises the components of a polycarboxylate dispersant and strength improvement additive. | 11-26-2009 |
| 20090272296 | Process for the Preparation of Products of High Early Strength Comprising Hydraulic Binders - A process for the preparation of products of high early strength comprising hydraulic binders, in which a hydraulic binder, water and 0.1 to 5% by weight, based on the hydraulic binder, of a finely divided titanium dioxide are mixed with agitation and in any desired sequence. | 11-05-2009 |
| 20090239430 | Exterior Finishing System and Building Wall Containing a Corrosion-Resistant Enhanced Thickness Fabric and Method of Constructing Same - A corrosion-resistant lath is provided for use in exterior finishing systems, such as stucco systems and exterior insulation and finish systems (“EIFS”). The lath includes in a first embodiment an open, woven fabric comprising weft and warp yarns containing non-metallic fibers, such as glass fibers. A portion of the weft yarns are undulated, resulting in an increased thickness for the fabric. The fabric is coated with a polymeric resin for substantially binding the weft yarns in the undulated condition. This invention also includes methods for making an exterior finish system and building wall including an exterior finish system using such a lath. | 09-24-2009 |
| 20090197991 | RHEOLOGY MODIFYING ADDITIVE FOR DRY CAST CEMENTITIOUS COMPOSITIONS - A dry cast cementitious composition including cement, water, and a rheology modifying additive (RMA) is provided. The inclusion of the RMA improves the dry cast cementitious composition's response to vibration and dampens out differences due to minor fluctuations in initial slump of the composition. The RMA may include a dispersant for the dry cast cementitious compositions. The dry cast cementitious composition may optionally include other admixtures or additives known in the industry. Methods for making the dry cast cementitious composition and dry cast cementitious articles from the composition are also provided. | 08-06-2009 |
| 20090197990 | Lightweight Structural Finish - A lightweight finish composition, method of production and a method of application are provided. The lightweight finish composition comprises a resin dispersion, alkali metal phosphate, alkylolammonium salt of a polyfunctional polymer, and lightweight aggregate such as silica spheres. The lightweight aggregate has a density and weight that is less than those of sand. The combination of alkali metal phosphate and alkylolammonium salt of a polyfunctional polymer stabilizes the lightweight finish composition by preventing the lightweight aggregate from absorbing water, after production of the lightweight finish composition. | 08-06-2009 |
| 20090186964 | Polymer Composition and Use of the Same as an Additive in Aqueous Construction Systems and Water-Based Paint and Coating Systems - A polymeric composition consisting of water-soluble or water-swellable copolymers containing sulfo groups and nonionic polysaccharide derivatives, such as methylcellulose (MC), hydroxyethylcellulose (HEC), hydroxypropylcellulose (HPC), methylhydroxyethylcellulose (MHEC), methylhydroxypropylcellulose (MHPC) and welan gum or diutan gum, and the use thereof as an additive in aqueous construction systems based on hydraulic binders, such as cement, lime, gypsum or anhydrite, is described. The composition can also be used in water-based paint and coating systems. The composition according to the invention exhibits a synergistic improvement of the properties and, when used in relatively small amounts, constitutes highly effective water retention agents in such construction and paint systems, which also achieve outstanding air pore stability and tack. | 07-23-2009 |
| 20090149574 | Iron Filled Urethane Cementitious Flooring Composition - Cementitious flooring compositions are products obtained by mixing together and allowing to cure hydraulic cement, water, iron aggregate filler, and resin forming components comprising polyisocyanate and an isocyanate reactive compound. The compositions are particularly suitable for flooring applications and the mixtures, once made up, set very rapidly. | 06-11-2009 |
| 20090124728 | Providing Freezing and Thawing Resistance to Cementitious Compositions - An improved freeze-thaw durability cementitious composition is provided that uses at least partially degradable polymeric particles that are blended directly into the cementitious composition mixture. The degradable polymeric particles provide void spaces in the cementitious material matrix, and such void spaces act to increase freeze-thaw durability of the cementitious material. | 05-14-2009 |
| 20090107364 | Hydraulic binding agent - The invention relates to a hydraulic binding agent comprising a binding agent component having free-flowing or solidifying properties when water is added and an acceleration component which is used to accelerate solidification. The acceleration component contains ultrafine calcium hydroxide having a high specific surface and low grain size. | 04-30-2009 |
| 20090054558 | Pulverulent Polycondensation Products - Pulverulent polycondensation products are described, consisting of
| 02-26-2009 |
| 20090036571 | Water-Soluble Copolymers Containing Sulpho Groups, Process for Their Preparation and Their Use - 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. | 02-05-2009 |
| 20080319217 | Carbonic Acid Derivatives, Method for the Manufacture Thereof and the Use Thereof - The invention relates to carboxylic acid derivatives which are obtained by reacting an unsaturated dicarboxylic acid anhydride (A) with a hydrophobic reactive component (B) that contains at least one group reacting to carboxylic acid anhydrides and has an average molecular weight of 200 to 50,000 Dalton. The inventive carboxylic acid derivatives are excellent as a substance for preventing efflorescences on surfaces of hardened cementitious construction materials and/or hydrophobizing the corresponding cementitious systems. Furthermore, said cementitious products absorb considerably smaller amounts of water as a result of the inventive additives such that frost damage and premature rusting of the reinforcing steel can be significantly reduced. | 12-25-2008 |
