Patents
Patents for C04B 28 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements (36,226)
02/1991
02/05/1991US4990191 Slurry also contains formaldehde-naphalene sulfonate condensate, or inorganic salts
02/05/1991US4990190 Strength enhancing additive for certain portland cements
02/05/1991CA1279877C High-strength, fire-resistant gypsum composition
02/05/1991CA1279876C Method of disposing metallic oxide impregnated dust
01/1991
01/30/1991EP0410662A2 Cementitious compositions containing shredded polystyrene aggregate
01/30/1991CN1048840A Composition method for concrete of excess producing quantity
01/29/1991US4988390 Method for production of inclusion water for hardening gypsum, method for production of shaped article of gypsum, and shaped article of gypsum
01/29/1991CA1279662C Capsules of high alumina cement compositions
01/24/1991DE3922636C1 Thermally shielding ICE construction parts - using device comprising metal shield or film coated with heat insulation material
01/23/1991EP0409787A1 Dry mixture for epoxy cement concrete
01/23/1991EP0409774A1 Set retarding composition for hydraulic binders and process for its preparation
01/23/1991EP0409751A1 New granulates and building materials, concrete pastes ready for use and construction elements obtained from these pastes
01/23/1991EP0409609A2 Hydraulic inorganic composition and molded articles thereof
01/23/1991EP0323482B1 Process for purifying polluted materials and use of the product thus obtained
01/23/1991CN1048696A Explosion-proof electric-conducting polymer concrete
01/22/1991US4986854 Method of improving quality of mortar or concrete structures and additives therefor
01/22/1991CA1279335C Magnesium phosphate fast-setting cementitious compositions containing set retardants
01/22/1991CA1279334C Water and fire resistent building material
01/22/1991CA1279333C Hydraulic binders and building elements formed of non- traditional materials
01/22/1991CA1279332C Volume-stable hardened hyraulic cement
01/22/1991CA1279183C Conductive cathodic protection compositions and methods
01/21/1991CA2021412A1 Dry mixture for epoxy cement concrete
01/16/1991EP0408545A1 Process for immobilizing harmful substances and/or for making them inert
01/16/1991EP0407921A2 Anorganic porous shaped product and process for the production of the same
01/16/1991EP0407889A1 Polymer powder redispersable in water, obtainable by spraying aqueous polymer dispersions and its application as additive in hydraulic binders
01/16/1991EP0407602A1 Lightweight molding and production thereof
01/15/1991WO1991001280A1 Process for rendering inert and/or immobilizing environmentally harmful substances
01/15/1991US4985080 Protective coating for concrete structures
01/15/1991US4984933 Cement and washout retarder mix
01/15/1991CA2063395A1 Process for rendering inert and/or immobilizing enviromentally harmful substances
01/15/1991CA2020449A1 Polymer powders which are redispersible in water and can be prepared by atomizing aqueous polymer dispersions, and their use as additives in hydraulic binders
01/10/1991WO1991000252A1 Calcium sulfate hemihydrate composition having utility in the presence of blood
01/09/1991EP0406550A1 Process for the preparation of purified calcium sulfate dihydrate from aqueous solutions
01/09/1991EP0406504A1 Process for manufacturing concrete assuring the preservation of its colour through the years
01/09/1991EP0406328A1 A sound absorbent and heat insulating fiber slab.
01/08/1991US4983342 Multilayer, two binder systems, magnesia cement and lignin sulfonate, fumed silica and alkali silicate, wood fibers
01/08/1991US4983220 High speed calcium migration phase; complexing portland cement lime by adding calcium aluminate
01/08/1991US4983218 Cyclic alkylene carbonate and aliphatic alcohol binders
01/08/1991US4983075 Clay, sand, sodium or potassium silicate, in situ gelation where barrier contacts acidic water
01/08/1991CA1278797C Concrete admixture compositions
01/03/1991DE3920025A1 Additive mixts. for gypsum materials - contain cellulose derivs., thickeners and fluidiser(s)
01/02/1991EP0406072A2 Chemical ingredient for hydraulic cement mixtures
01/02/1991EP0405306A1 Improved additives for hydraulic cement compositions
01/01/1991US4981740 Acid resistant concrete articles, especially sulfur concrete pipes, and a method of manufacturing said articles
01/01/1991US4981518 Bonded composite structure and method of making
12/1990
12/29/1990CA2010182A1 Chemical additive for hydraulic cement mixes
12/28/1990CA2019949A1 Composite refractory material containing vegetal fibers
12/27/1990EP0404196A2 Material for heat and electrical insulation with a capacity of selective absorption of electromagnetic radiation spectrum and vibration, its production process and use
12/25/1990US4979992 Compact reinforced composite
12/25/1990US4979990 Foamable composition
12/19/1990EP0402812A2 Method of controlling air entrainment in concrete compositions
12/19/1990CN1047880A Compound water-proof building material and preparation thereof
12/18/1990US4978392 Cementitious compositions
12/18/1990CA1278000C Cement products containing surface treated inorganic particulates
12/18/1990CA1277999C Hydraulic cement additives and hydraulic cement compositions containing same
12/18/1990CA1277998C Process for preparing a building and/or construction material a polymer modified aqueous dispersion, and use thereof for the preparation of a building and/or construction material
12/15/1990CA2018889A1 Very early setting ultra high early strength cement
12/14/1990CA2016063A1 Method of controlling air entrainment in concrete compositions
12/13/1990WO1990015205A1 Building element
12/13/1990WO1990015033A1 Very early setting ultra high early strength cement
12/13/1990WO1990012906A3 Reinforcing and/or process fibres based on vegetable fibres, process for producing them and their use
12/12/1990EP0402319A2 Admixture for concrete mixes
12/12/1990EP0402306A1 Process and active substance for solidifying and immobilising hazardous wastes in the liquid or semi-liquid phase
12/12/1990CN1047667A Inorganic water-proof plaster stone ceiling
12/12/1990CN1010758B Cement combination type artificial marble
12/11/1990US4977227 Lignosulfonic graft copolymer as a cement dispersant
12/11/1990US4977111 Porous radiant burners having increased radiant output
12/11/1990US4976760 Open-cell refractory
12/11/1990US4976316 Well completion
12/05/1990EP0393043A4 Methods of making cementitious compositions from waste products
12/05/1990CN1047484A Light-fibre glass reinforced cement slab
12/05/1990CA2018321A1 Admixture for concrete mixes
12/04/1990US4975396 Process for producing reinforced cementitious compositions and the products produced thereby
12/04/1990US4975303 Applying liquid mortar onto substrate, adding pigment, mixing with air stream to form pattern
12/04/1990US4974522 Cold-molded cementitious composites reinforced with surface-modified polyamide fibres and method of preparing same
12/04/1990CA1277343C Magnesium phosphate fast-setting cementitious compositions containing set retardants
12/04/1990CA1277342C Fast-setting cements from ammonium phosphate fertilizer solution
11/1990
11/29/1990WO1990014322A1 Method and plant for the production of injectable cement mixtures
11/29/1990WO1990014319A1 High strength structural perlite concrete
11/29/1990EP0363429A4 Process for chemical stabilization of heavy metal bearing dusts and sludges, such as eaf dust.
11/28/1990EP0399019A1 Phenolic resin preforms and method of manufacturing them.
11/24/1990WO1990014309A1 Process for the preparation of purified calcium sulphate dihydrate by aqueous means
11/24/1990CA2033189A1 Process for preparation of purified calcium sulphate by aqueous medium
11/23/1990WO1990014321A1 An electrically conductive cement composition and an electrically conductive mass prepared from the composition
11/22/1990EP0397963A1 Highly reactive hydraulic binder for the production of building materials
11/22/1990EP0397862A1 Raw-material mixture for obtaining an active mineral additive to cement
11/22/1990DE3918130A1 Prefabricated steel reinforced cement concrete compartment e.g. garage - comprising walls and roof of lightweight concrete contg. polystyrene and reinforcing fibre
11/22/1990DE3916259A1 Acid- and alkali-resistant binders and final mortars - comprise hydraulic binder-aggregate mixt. and di- or poly-isocyanate with aq. suspension of alkali metal silicate
11/20/1990US4971627 Calcium sulfate, calcium sulfite, calcium hydroxide, calcium carbonate desulfurized product, mixing flue ash or flue dust, oxidation and roasting
11/19/1990CA2017018A1 Concrete admixture device and method of using same
11/14/1990EP0397189A2 Mixed gypsumless portland cement and its production
11/14/1990EP0396671A1 Cement composition
11/14/1990CN1046923A Dry grouting agent and method of producing same
11/14/1990CN1010406B Magnesium oxychoride cement and magnesite concrete of good water-proofness
11/13/1990US4970246 Aromatic polyamide and oxidized polyacrylonitrile fibers
11/13/1990CA1276189C Process for preparing a water repellent calcium silicate shaped product
11/13/1990CA1276188C Cementitious mixes
11/13/1990CA1276061C Cement matrix composites
11/11/1990CA2016435A1 Mixed gypsulmless portland cement
11/07/1990EP0396240A1 Ceramic meterial and method for producing the same