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7621995 |
Concrete mixtures having high flowability
A viscosity modifying agent is added to a concrete mixture to give the concrete desirable rheological properties. The viscosity modifying agent is incorporated into a foam admixture before it is...
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7462236 |
Gluconate broth for cement and concrete admixture
Methods and compositions of the invention involve the use of crude intermediate fermentation broth, derived from industrial glucose fermentation processes prior to completion of purification steps,...
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7435293 |
Cement compositions comprising maltodextrin
Cement compositions, and more particularly, cement compositions that include maltodextrin. An example is a cement composition that includes: a hydraulic cement, water, and an additive comprising...
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7399355 |
Fluid loss control additive and cement compositions comprising same
A fluid loss control additive comprising a crosslinked polymer and sugar and cement compositions comprising the same. In one embodiment, the fluid loss control additive comprises a polymer and a...
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7393407 |
Silicon oxide slurry and method for producing such slurry
The present invention relates to a slurry containing water, amorphous silica panicles having a particle size less than 1 micron and silica flour with a particle size between 2-200 microns. In order...
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7371279 |
Cellulose ether composition
A composition comprising cellulose ether, a superplasticizer and defoamer suitable for use as an additive in extruding inorganic compositions is disclosed. The inventive composition functions as a...
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7303625 |
Treatment fluids comprising chlorinated carbohydrates
Treatment fluid compositions, and more particularly, treatment fluid compositions that include chlorinated carbohydrates. An example is a treatment fluid that includes: a hydraulic cement; water;...
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7255731 |
Use of particular polysaccharides as admixtures for mineral materials
The subject of the present invention is the use of particular polysaccharides as admixtures for mineral materials, especially as admixtures for mineral binders. These polysaccharides have,...
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7244840 |
Admixture, extrudable hydraulic composition and method for the selection of admixture
A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland...
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7151173 |
Admixture, extrudable hydraulic composition and method for the selection of admixture
A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland...
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7067003 |
Use of dunder in concrete compositions
A cementitious mixture for concrete including an admixture including dunder having a solids content in a range of from 5% to substantially 100% by weight, the dunder being added to the cement in a...
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7067000 |
Methods of cementing using a fluid loss control additive
A method of cementing, comprising displacing a cement composition into a workspace, wherein the cement composition comprises cement, water, and a fluid loss control additive comprising a polymer...
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7044224 |
Permeable cement and methods of fracturing utilizing permeable cement in subterranean well bores
The present invention relates to methods of stimulating a subterranean formation. More particularly, but not by way of limitation, the present invention relates to methods of fracturing...
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7032663 |
Permeable cement and sand control methods utilizing permeable cement in subterranean well bores
This invention relates to improved methods for completing wells in unconsolidated subterranean zones. More specifically, the present invention relates to cement compositions useful in subterranean...
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6893497 |
Use of water-soluble polysaccharide derivatives as dispersing agents for mineral binder suspensions
The invention concerns the use of water-soluble polysaccharide derivatives as dispersing agents for mineral binder suspensions. A partially hydrolyzed cellulose containing carboxyl groups and...
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6872246 |
Fiber cement composite materials using cellulose fibers loaded with inorganic and/or organic substances
This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using the loaded cellulose fibers. This invention discloses four aspects of the...
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6811604 |
Additives for mineral binders, based on a product of internal dehydration of a hydrogenated sugar, mineral binders with additives and method of preparing same
The subject matter of the invention is a new additive for mineral binders comprising a composition containing at least one product of internal dehydration of a hydrogenated sugar which can...
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6800129 |
High solids pumpable cement additives
Exemplary liquid cement additive compositions have high solids loading which includes alkali or alkaline earth metal salts and other cement additive components. The liquid carrier is preferably...
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6797050 |
Use of fermentation residues as flow-enhancing agents in cementitious materials
Herein is disclosed an admixture, for concrete, gypsum panels, and other cementitious products, derived from fermentation still bottoms. The admixture typically comprises protein, glycerol, and...
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6648964 |
Admixtures for mineral binders based on hydrogenated disaccharide, admixture-containing mineral binders, and a process for the preparation thereof
A novel admixture for mineral binders is composed of a polyol composition with a high hydrogenated disaccharide content (≧40%). The hydrogenated disaccharide is advantageously chosen from...
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6641661 |
High early strength cement and additives and methods for making the same
A method for improving early strength of cements, comprising introducing into a cement during the grinding thereof (a) at least one water reducer comprising a polyoxyalkylene polymer; (b) a sugar;...
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6406536 |
Organic additives for the preparation of cementitious compositions with improved constancy of color
Described herein is the use of a combination of organic additives that is particularly advantageous for the preparation of cementitious compositions having a high conservation of the degree of...
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6395205 |
Method of manufacturing an aerated autoclaved concrete material
A method for manufacturing an aerated autoclaved concrete material. A quick-stiffening mixture is prepared by combining a silica containing material, quicklime, a rising agent, gypsum, cement and...
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6383284 |
Masonry render
A dry masonry render mixture comprising, in concentrations which can be varied to achieve different finishes, Portland cement, river sand, graded stones, plasterers lime, the ingredients being...
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6384141 |
Anti-shrinkage agent for hydraulic material
The present invention is related to a shrinkage reducing agent for hydraulic materials which comprises at least one polymer selected from the group consisting of (a) a polymer having a structure...
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6221152 |
Stable suspension of hydrocolloids
The present invention comprises a stable hydrocolloid welan gum in which a hydrocolloid, preferably welan gum, is uniformly dispersed in a superplasticizer such as sulfonated naphthalene,...
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6110271 |
Methods for improved rheological control in cementitious systems
In accordance with the present invention, a microbial polysaccharide having the features characteristic of S-657 has been found to be effective to improve the rheological properties of a variety of...
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6068697 |
Polysaccharide derivatives and hydraulic compositions
A polysaccharide derivative prepared by replacing all or part of the hydroxyl hydrogen atoms of a polysaccharide or polysaccharide derivative by (A) a hydrophobic substituent having a C 8 -C 43 ...
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6033469 |
Injection preparation suspension free of sodium bentonite
Injection medium in the form of a dry mixture for preparing an injection suspension for sealing and/or reducing the penetrability of soils (loose rocks) and/or stone and/or structures against...
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5997633 |
Composition for and method of pumping concrete
A composition for and a method of promoting the flow of a concrete slurry through a pump and a conduit is provided. The composition is a dry particulate mixture comprised of a water soluble,...
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5951752 |
Method of using a coloring composition in a concrete based composition
An aqueous composition for coloring cement based compositions comprising water, pigment, a suspension enhancing agent and latex polymer solids.
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5880182 |
Water-reducing admixtures for cementitious compositions
An admixture for decreasing the water demand of cementitious compositions such as concrete consists of (a) from 75-25% by weight of a water-reducing agent whose major component is a...
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5858083 |
Cementitious gypsum-containing binders and compositions and materials made therefrom
Cementitious binders include calcium sulfate beta-hemihydrate, a cement component comprising Portland cement, and either silica fume or rice-husk ash. The silica fume or rice-husk ash component is...
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5855665 |
System and method for producing a pigmented cement composition
An aqueous composition for coloring cement based compositions comprising water, pigment, a suspension enhancing agent and latex polymer solids.
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5846315 |
Method for preparing a pigmented dispersing pigment cement composition
An aqueous composition for coloring cement based compositions comprising water, pigment, a suspension enhancing agent and latex polymer solids.
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5733367 |
Cement composition
A cement composition comprising a cement base and hemicellulose. The cement composition produces reduced efforescence and less bleeding. Self-leveling materials containing the cement composition...
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5626954 |
Sheets made from moldable hydraulically settable materials
Compositions and methods for manufacturing sheets having a hydraulically settable matrix. Suitable compositions are prepared by mixing together a hydraulic binder, water, and appropriate additives...
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5626666 |
Milling agent for cements
A cement milling agent characterized in that it is composed essentially of sugar-syrup derivatives prepared by oxidizing and hydrogenating said sugar syrups.
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5573589 |
Cement compositions containing a sulfated polysaccharide and method
An additive for cementitious compositions comprises at least one sulfated polysaccharide obtained by the sulfation of a polysaccharide, preferably under moderate conditions. The additive enhances...
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5435845 |
Glucoheptonate compositions and methods
Compositions and methods relating to cementitious compositions are provided. The use of a glucoheptonate in the alpha form to prolong the workability of cementitious compositions is provided. The...
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5427617 |
Methods and compositions for reclaiming concrete
A method of reclaiming leftover ready-mix concrete comprising the steps of: (1) retarding the hydration of the unused portion of concrete returned from a job site; and (2) after the desired...
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5417759 |
Set retarding additive for cement slurries
N-phosphonomethyl iminodiacetic acid may be used as an additive to retard the setting time of Portland cement.
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5378279 |
Enhanced cement mixed with selected aggregates
A cement enhanced to obtain a self-smoothing, self-levelling, non-shrinking mortar or concrete, consisting of an artificial cement mixed with additives, including at least a combination of a...
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5366550 |
Latex modified cement-based thin set adhesive
A novel cement-based composition comprising a cement powder, a polymeric latex composition, and a water-soluble polysaccharide compound is disclosed. This composition is useful in adhering ceramic...
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5356671 |
Concrete spraying process
A process for improving the rebound properties of sprayed concrete comprises the inclusion therein of micro-silica which has been pretreated with from 2 to 25% by weight thereof of a liquid...
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5352290 |
Concrete composition
A concrete composition which has superior fluidity and filling property and from which a concrete structure having high quality and durability and being excellent in resistance to freezing and...
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5244498 |
Concrete mixing drum cleaning method and apparatus
The present invention relates to a method of retarding the set of residual concrete in a concrete holding vessel comprising uniformly directing an aqueous solution containing an effective amount of...
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5221343 |
Dispersant, setting retarder and air entrainment additive for cement
The invention is a cement, water containing composition containing an organic polyglycoside. The composition has at least one of an increased air entraining capacity, a reduced viscosity and a...
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5200266 |
Method for producing construction panels using air hardening
A method for producing construction panels comprising cellulose fibers as the reinforcing means and of at least one inorganic binder such as cement and possibly of fillers, wherein the crude panels...
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5175277 |
Rapidly hydrating welan gum
A rapidly hydrating welan gum useful for preparing cementitious products. The gum can be dry blended with cement or other dry component and then added to a preformed cement/water pre-mix, thereby...
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