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7607484 Foamed cement compositions comprising oil-swellable particles and methods of use  
Of the many compositions and methods provided herein, an embodiment of a method comprises introducing a foamed cement composition into a subterranean formation, wherein the foamed cement...
7544242 Effective use of dispersants in wallboard containing foam  
Effective use of dispersants in wallboard containing foam results from a method where stucco is mixed with a first dispersant and a first quantity of water to form a gypsum slurry. A soap is...
7531584 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...
7507286 Self-foaming cement for void filling and/or delivery systems  
A self-foaming bone cement is described herein. In one variation, the bone cements include a self setting calcium phosphate cement formulation which when cured, forms macroscopic pores of varying...
7494544 Polymer shell encapsulated gas as a cement expansion additive  
Cement compositions containing an expandable material are disclosed. The compositions are suitable for use in oil and gas wells. An example of such an expandable material is a polymer encapsulated...
7395860 Methods of using foamed settable compositions comprising cement kiln dust  
The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the...
7288147 Providing freezing and thawing resistance to cementitious compositions  
An improved freeze-thaw durability wet cast cementitious composition is provided that uses in-situ production of gas by gas generating additives and optionally polymeric microspheres that are...
7270183 Cementing methods using compressible cement compositions  
A method of cementing at least two casing strings in a well bore, the method having steps as follows: filling the well bore and the inner diameters of the at least two casing strings with a cement...
7174962 Methods of using lightweight settable compositions comprising cement kiln dust  
Settable compositions that comprise water, CKD, and microspheres, wherein the lightweight settable composition has a density less than about 13 pounds per gallon. Methods of cementing that comprise...
7174961 Methods of cementing using cement compositions comprising basalt fibers  
Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises...
7144456 Cementing compositions and methods of cementing in a subterranean formation using an additive for preventing the segregation of lightweight beads  
Cementing compositions and methods of cementing in a subterranean formation are provided. The cement composition includes a hydraulic cement, lightweight beads, and a desegregating agent for...
7063738 Permeable cements  
A permeable cement composition comprises an aqueous slurry of a hydraulic cement including a water-immiscible dispersed fluid phase, such as oil or gas, and a hollow particulate material, the...
6989057 Zeolite-containing cement composition  
A method and cement composition is provided for sealing a subterranean zone penetrated by a well bore, wherein the cement composition comprises zeolite, cementitious material, and water sufficient...
6969423 Lightweight strain hardening brittle matrix composites  
Fiber reinforced lightweight concrete composites employ less than 4% by volume of reinforcing fibers in conjunction with small particulate lightweight aggregates or voids, and cure to composites...
6936099 Lightweight joint compound containing stable air pockets  
Low density joint compounds, and methods for their use are disclosed. Joint compounds comprising water, calcium carbonate, a foaming agent, and a rheology modification agent contain a plurality of...
6858566 Methods of generating gas in and foaming well cement compositions  
The present invention relates to methods of generating gas in and forming cement compositions that may be introduced into a subterranean zone. A method of the present invention provides a method of...
6833091 Method for injecting of foamed concrete and a foamed concrete  
A method for stabilizing gravel, sand, crushed stone, rock and concrete structures which have cracks by injecting a pumpable, low viscous aqueous aerated concrete with a pore volume of at least 20%...
6824607 Cement-bound active substance  
The invention relates to a novel cement-bound material with a mineral binding agent, a mineral filler and/or mineral aggregates. Said cement-bound material has a proportion of a mass hydrophobing...
6806298 Sprayable composition and method for forming a foamed outdoor protective cover layer  
A sprayable composition and a method of protecting material with the composition is disclosed. The composition comprises a bulking/setting material, a water soluble polymer and water to provide a...
6783704 Method and agent for producing hydrophobic layers on fluoride layers  
Process for the production of hydrophobic layers on optical substrates which have an alkaline earth metal fluoride or alkali metal fluoride layer as the outermost layer or consist of alkaline earth...
6773500 Fiber reinforced aerated concrete and methods of making same  
Fiber reinforced aerated concrete compositions and methods of forming structural units such as blocks, panels, etc., from such compositions are disclosed. The compositions comprise a fly ash/cement...
6746532 Lightweight concrete with increased strength and method for producing the same  
A method for producing lightweight concrete is disclosed which comprises mixing foamed particles, aggregates, and cement slurry to create a strong, lightweight concrete. The foamed particles can be...
6699561 Activated carbon molded body and use thereof  
An activated carbon molded body, more particularly in honeycomb form and for use as an adsorption filter, can be produced from a mixture including activated carbon, water, novolak powder, clay,...
6656262 Process for manufacturing a cement/porous-rock composite and product resulting therefrom  
A process for binding porous-rock particles with cement, wherein the rock is saturated in water prior to mixing with the cement. The saturation step causes water to fill the voids in the porous...
6638355 Synthetic aggregate and method of producing the same  
A synthetic aggregate having a multiplicity of uses such as for mixing with a cementing material to form concrete, mortar or plaster is disclosed. The aggregate includes crushed fragments of a size...
6626991 Low-density and low-porosity cementing slurry for oil wells or the like  
The invention relates to a cement slurry for cementing an oil well or the like, the slurry having a density lying in the range 0.9 g/cm 3 to 1.3 g/cm 3 , and being constituted by a solid fraction...
6605148 Fiber-reinforced cement molded product, and process for its production  
A molded product which has a high strength and which is excellent in surface smoothness and freezing damage resistance. It comprises a fiber-reinforced cement molded OK product which has a bulk...
6547871 Foamed well cement slurries, additives and methods  
The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a...
6541108 Process for the preparation, preferably from waste materials, of silicate foam with closed pores, and the product produced by the process  
The process of the invention characterized in that to 100 parts by weight of a silicate powder having 2000-8000 m 2 /g specific surface, 1-10 parts by weight of gas-forming material with particle...
6500252 High strength foamed well cement compositions and methods  
High strength foamed well cement compositions and methods of cementing subterranean zones penetrated by well bores are provided. The foamed well cement compositions are basically comprised of a...
6485561 Low density cellular concrete with accelerators for rapid hardening  
Compositions and methods are provided for creating a low density cellular concrete that has a viscosity which rapidly increases after adding an accelerator, while maintaining substantially the same...
6485560 Methods of protecting concrete from freeze damage  
A method of protecting a cementitious mixture from freeze damage is provided. The method consists of incorporating an entrainment air composition into the cementitious mixture to form air voids in...
6457524 Well cementing compositions and methods  
The present invention provides improved lightweight well cement compositions useful for performing a variety of cementing applications in subterranean formations and particularly for cementing...
6425950 Method for producing foaming substances, especially foaming cement substances, and corresponding device  
The invention relates to a method for producing foaming substances, especially foaming cement substances, consisting essentially of a starting product, especially cement paste, and a foaming agent....
6406535 Material for constructional finished wallboard  
A constructional finished wallboard is formed of a mixture including 50 to 65 wt. % of dried shirasu, 30 to 40 wt. % of a plaster component, 3 to 10 wt. % of a clay component, 5 to 10 wt. % of...
6375736 Structure cellular grout  
A structural cellular grout, formed by combining grout and raw unprocessed road planings. The grout is formed by combining cement, pulverized fuel ash, and a liquid. The liquid comprises water and...
6364945 Methods and compositions for forming permeable cement sand screens in well bores  
Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a...
6340498 Porous composition for use in an environment of variable pressure and/or variable temperature  
A mixture of a binder and a particle material, the mixture having 50 to 90 volume percent of the particle material. The binder is curable in a temperature range of 50° F. to 90° F. The volume...
6290769 Lightweight insulating concrete and method for using same  
A lightweight insulating concrete composition includes a cementitious forming material and a lightweight aggregate combination of expanded vermiculite and expanded perlite, the weight ratio of one...
6264735 Low-lead leaching foamed concrete bullet barrier  
A method of forming low lead leaching foamed concrete is provided. The method includes the step of dry mixing cement with a suspending agent to form a dry mixture. Water is mixed with a fine...
6171655 Method of preparing constructional finished wallboard  
A constructional finished wallboard is formed of a mixture including 50 to 65 wt. % of dried shirasu, 30 to 40 wt. % of a plaster component, 3 to 10 wt. % of a clay component, 5 to 10 wt. % of...
6139620 Calcium silicate board and method of manufacturing same  
6046374 Cellular grout radiation barrier  
A method for forming a radiation-absorbing barrier around a radioactive component by flowing a radiation-absorbing cement grout into a container which encloses the component. The...
6033780 Fine particles of petaloid porous hydroxyapatite and process for producing the same  
6030446 Cementitious compositions and lightweight structural units  
A cementitious composition for the molding of ultra-lightweight, durable, large structural units comprising Portland cement, coal combustion byproducts, expanded or extruded polystyrene and water,...
5976718 Process for producing a mainly inorganic foam, and thus produced mass or moulded part  
A premix composition for producing an inorganic solid foamed mass by mixing component (A) an aqueous acidic phosphate solution of mainly polyvalent cations and phosphoric acid wherein between 0.8...
5968257 Ultrafine cementitious grout  
An ultrafine cementitious grout in three particle grades containing Portland cement, pumice as a pozzolanic material and superplasticizer in the amounts of about 30 wt. % to about 70 wt. % Portland...
5897943 Metal matrix composite including homogeneously distributed fly ash, binder, and metal  
Metal matrix composites comprising of a solid preform comprising of a filler phase containing fly ash and a binding material having a binder to water ratio of 1:1 to 1:9, wherein the preform...
5868830 Building material having low degrees of shrinkage  
A building and construction material and method of making the material utilizes water with cement which are mixed together and followed by mixing with a mineral filler material such as sand or...
5861057 Drainage concrete  
Drainage concrete having a void volume of from 10 to 35% by volume and methods for its production and use. The drainage concrete comprising a) a hydraulic binder selected from the group consisting...
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