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9034099 Cement that is resistant to internal sulfate reactions and to external sulfate attacks  
The present invention relates to a novel cement which makes possible the preparation of concrete, grout or mortar which is resistant to internal sulfate reactions and to external sulfate attacks,...
8986444 Hybrid cement clinker and cement made from that clinker  
A hybrid cement clinker incorporates specific ranges of clinker phases and falls within specific modulus values as set forth and described in this document.
8864902 Cement clinker, method of manufacturing the same and cement composition  
A cement clinker which can be sintered at 1,300 to 1,400° C. which is lower than the conventional sintering temperature and develops excellent strength characteristics such as mortar compression...
8828136 Fast setting low permeability cement and concrete  
A calcium sulfoaluminate-based concrete with a permeability of less than 1000 Coulombs. Rapid-setting low chloride-ion permeability calcium sulfoaluminate (CSA) cements and concretes include CSA...
8715411 Method for producing a clinker for hydraulic cement with low CO2 emission and high resistance  
A method for producing a clinker for cement, comprising grinding a raw flour comprising, especially, Al2O3, Fe2O3 and SO3 in contents such that the formula for calculating SO3 content...
8574359 High performance sulfo-aluminous clinker  
The invention relates to a sulfo-aluminous clinker with optimal setting time and short term compressive strengths, comprising a mixture of the following phases: —calcium sulfoaluminate, or C4A3$,...
8506701 Method for producing hydraulic powder  
The present invention provides the production of the hydraulic powder containing C3A in an amount of 0.5 to 9.5% by weight through a step of grinding a hydraulic compound in the presence of the...
8425679 Calcium ferroaluminate compound, cement admixture and its manufacturing methods, and cement composition  
It is the object of the invention to provide a cement admixture, and a cement composition that can impart good enough rustproofness to reinforcing bars in hardened cement concrete, and can have...
8317915 Additives for a hydraulic binder based on belite-calcium-sulphoaluminate-ferrite clinker  
A composition includes at least, in % expressed by mass relative to the total mass of the composition, from 0.01 to 3% of polycarboxylic acid or salts thereof, the polycarboxylic acid including 2...
8268071 Sulfoaluminous clinker and method for preparing same  
The invention relates to a novel sulfoaluminous clinker, to a method for preparing said clinker, and to the use of said clinker for preparing a hydraulic binder and subsequently grout, concrete,...
8187374 Process for manufacturing clinker with controlled CO2 emission  
The invention relates to a process for manufacturing clinker from a raw mix, implementing the following: preheating of the raw mix by combustion flue gases; precalcination of the raw mix; and...
8177903 Hydraulic binder with a base of sulfoaluminate clinker and portland clinker  
The present invention relates to a composition including at least a Portland clinker and a Belite-Calcium-Sulphoaluminate-Ferrite clinker (BCSAF).
8123854 Method of treating marine sediments and use of the resulting solid product in mortars or concretes  
A method of treating marine or river dredging sediments, especially harbour zone sediments, whose free water content is between 40% and 80% by weight, for the purpose of obtaining a solid material...
7998267 Additives for cement  
A belite-calcium sulphoaluminate-ferrite (BCSAF) cement composition including: a BCSAF clinker which clinker has the following mineralogical composition, based on the total weight of the clinker:...
7850776 High belite-containing sulfoaluminous clinker, method for the production and the use thereof for preparing hydraulic binders  
A sulphoaluminate clinker includes as a phasic formulation, compared with the total weight of clinker: 5 to 25% of a calcium aluminoferrite phase with a formulation corresponding to the general...
7695559 Preparation of cement films by tape casting  
A cement suspension includes the following, in relation to the cement material: water (22-35% by weight); acetic acid (1-10% by weight); plasticizer (up to 8% by weight); and dispersant agent...
7445668 Hydraulic binder having low CO2 emission level  
The invention relates to a hydraulic binder containing, in percentage by weight: from 1.1 to 9% of tricalcium aluminatefrom 1.5 to 13.5% of tetracalcium ferroaluminatefrom 0.5 to 1.5% of...
7351281 Powdered material and ceramic material manufactured therefrom  
Powdered material, the binder phase of which mainly consists of a cement-based system, which powdered material has the capacity following saturation with a liquid reacting with the binder phase to...
7326290 Liquid setting accelerator for a composition comprising Portland cement  
The invention relates to a setting accelerator for a composition comprising Portland cement, in the form of a slurry comprising at least one calcium aluminate, 0.5 4%, preferably 0.6 2.3% of an...
7182137 Cementitious compositions containing interground cement clinker and zeolite  
Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum.
7150786 Very early setting ultra-high strength cement  
Clinkered materials containing high concentrations of {(C,K,N,M)4(A,F,Mn,P,T,S)3(cl,{overscore (S)})} (crystal X), and {(C2S)3(C{overscore (S)})3 Ca(f,cl) 2} or {(C2S)3(C{overscore...
6997984 Cement admixture  
A burned product containing 100 parts by weight of C2S, 10 to 100 parts by weight of C2AS, and 20 parts by weight or less of C3A; a cement admixture prepared by grinding the burned product; and a...
6758896 Rapid hardening, ultra-high early strength portland-type cement compositions, novel clinkers and methods for their manufacture which reduce harmful gaseous emissions  
Clinkered materials containing high concentrations of {(C,K,N,M)4 (A,F,Mn,P,T,S)3 Cl,{overscore (S)})}(crystal X), and {C2S)3(C{overscore (S)})3Ca(f,Cl)2} or C9S3{overscore (S)}3Ca(f,cl)2 crystal...
6752865 Process for manufacturing of high iron hydraulic cement clinker  
The present invention describes a process for manufacture of high iron hydraulic cement clinker in production of cement and cementation binder for application in construction activity and in...
6730159 Clinker hydraulic binder, use and method for making same  
A clinker-type hydraulic binder obtained by burning comprising a magnesia spinel mineralogical phase and at least a calcium aluminate mineralogical phase, with a lime content less than 15% of the...
6695910 Sulfoaluminous clinker without iron and without free lime, its process of preparation and its use in white binders  
The lightly colored sulfoaluminous clinker contains: more than 55% by weight of calcium sulfoaluminate phase (C4A3S), more than 10% by weight of belite phase (C2S), less than 10% by weight of...
6602343 Quick setting cement with lime and aluminates  
The present invention refers to a hydraulic binder made from Portland clinker containing calcium fluoroaluminate 11CaO.7Al2O3.CaF2, to which sodium aluminate, lime, and optionally, sodium...
6537365 Cement clinker, cement composition, method for producing cement clinker, and method for treatment of waste containing alkali component  
Cement clinker, characterized in that it comprises Al2O3 and Fe2O3 wherein the mass ratio of Al2O3/Fe2O3 is 0.05-0.62, and alkali components and C2S wherein the content Y (mass %) of alkali...
6447597 Hydrated calcium aluminate based expansive admixture  
An additive, a mixture incorporating the additive and a method of formulating a mortar incorporating the additive. The additive is based on calcium sulfoaluminate composed of C3AH6 and CAH10 where...
6238633 Process for preparing calcium aluminate from aluminum dross  
A non-metallic product (NMP) substantially free of metallic aluminum and aluminum nitride which is utilized for making calcium aluminate.
6190449 Method for eliminating waste sulfurous acids coming from industrial treatments and for obtaining stable products  
The method comprises the steps of: preparing a belitic crude cement, neutralizing waste sulfurous acids by means of at least clay-calcareous fines which are thus transformed into artificial...
6149724 Hydraulic cement with accelerated high strength development  
A method of manufacturing cements based on calcium sulfoaluminate by forming a clinker through calcining a selection of typical cement precursor raw materials to temperatures of more than 1200° C....
6005057 Cement grinding aid  
A cement clinker grinding aid which comprises a styrene-maleic anhydride copolymer (SMA) superplasticiser. The SMA is preferably a type with polyoxyalkylene-based side chains. Use of the grinding...
5741357 Hydrated high alumina cement  
A hydraulic cement composition is disclosed which utilizes as part of an expansive component novel coated particles of high alumina cement. The particles have a core of substantially unhydrated...
5624489 Conversion-preventing additive for high alumina cement products  
Additives for high alumina cement compositions are proposed. The additives are effective to reduce or prevent the deleterious conversion of hexagonal calcium aluminate hydrates to cubic...
5549745 Non-slumping, pumpable castable and method of applying the same  
An essentially non-slumping, high density, low moisture and low cement castable composition, consisting of a tempered, pumpable first component containing the castable solids and consisting...
5527387 Computer implemented processes for microstructurally engineering cementious mixtures  
A design optimization process used to determine the proportions of sand, cement, coarse aggregate, water, fly ash, water reducers, air entraining agents and fillers needed to produce a concrete...
5512523 Monolithic refractory powder mixture  
A monolithic refractory powder mixture containing from 2 to 3 wt % of spheroidized refractory particles having a mean particle size of at most 30 μm of at least one member selected from the group...
5073197 Cement compositions  
The advantages of high alumina cement (early strength, resistance to sulphate attack) are preserved and its disadvantage (weakens with age) is solved by mixing it 50:50 with silica fume, gasifier...
5071484 Cementitious compositions and method  
A cementitious composition capable of forming an early high strength cement when admixed with a liquid comprising a cementitious material of a specific chemical composition, surface area, and...
4957556 Very early setting ultra high early strength cement  
Methods for forming very early setting, ultra high strength cements and the cements so produced are claimed. The methods comprise forming a mixture of raw materials containing SiO2, Al2 O3, CaO,...
4396422 Process for producing iron and refractory material  
There is disclosed a process for producing iron and refractory material for use as a raw material for a refractory brick and as an aggregate for a castable refractory product. A mixture of...
4330336 Method of producing low-line aluminous cement from aluminum smelting residue  
A certain amount of a starting calcarious material is added to an aluminum smelting residue, the mixture is smelted or semi-smelted, air is blown to the smelted or semi-smelted product to oxidize...
4259121 Method of preparing a novel cement particularly suitable as a refractory cement  
A refractory cement with outstanding mechanical properties contains 10 to 30 parts by weight of C4 A3 S clinker and 70 to 90 parts by weight of an aluminous clinker including 30 to 75% CA. This...
4242313 Processes for the recovery of alumina from fly ash and production of cement constituents  
Processes for the production of alumina and cement constituents from fly ash, in which the fly ash is subjected to magnetic separation removing magnetic constituents; the remaining non-magnetic...
4204878 Raw mixture for the production of refractory high-alumina cement  
A raw mixture is provided for the production of a refractory high-alumina cement which consists of a calcareous component, an aluminous component and a chloride of at least one of the metals...
4126475 Structural building components and method for production on the basis of laterite  
Production of high strength structural building components by steam curing a compressed mixture of laterite, lime and water at a temperature preferably between 70° and 100° C.
4116707 Raw mixture for producing refractory aluminous cement  
A raw mixture for the production of a refractory aluminous cement which consists of a basic component comprising barium carbonate or strontium carbonate, an acidic component comprising alumina or...
4071373 Process for the manufacture of aluminous cement from aluminum smelting residue  
A process for the manufacture of aluminous cement from aluminum smelting residue and the novel resulting cement are provided. According to the process, a mixture of predetermined amounts of...
4002484 Process for the manufacture of a fine white filler for industrial purposes  
A substantially stoichiometric mixture of calcic aluminate and calcium sulphate, as white as possible, formed at a temperature in the range of about 20° to 90° C, is hydrated simultaneously; water...

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