Cementitious mixtures

A method of producing a cementitious mixture initially comprises thoroughly dry mixing the coarsest constituent of the mixture with the finest: this process is repeated until all of the sand, microsilica and cement has been added. In this manner a very even distribution of the different sized partic...

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Bibliographische Detailangaben
Hauptverfasser:	FARSHID JANDAGHI ALAEE, SHARON DIANE PEARL BENSON, BHUSHAN LAL KARIHALOO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARING CLAY PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER REFRACTORIES SEPARATING SOLIDS FROM SOLIDS SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG SORTING TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	A method of producing a cementitious mixture initially comprises thoroughly dry mixing the coarsest constituent of the mixture with the finest: this process is repeated until all of the sand, microsilica and cement has been added. In this manner a very even distribution of the different sized particles is achieved, since the voids between adjacent larger particles are filled with smaller particles and thus the produced concrete has a high strength. Following the dry mixing, water and superplasticiser is added. Less water than is conventionally used is required since the mixture is more densely packed. In order to further strengthen the mixture and to greatly enhance its energy absorption capacity, reinforcing fibres having different lengths may be added prior to adding the water and following mixing of the granular materials. The fibres are added by placing them on an apertured surface which is agitated to cause the fibres to fall through the apertures in a random orientation.