MANUFACTURE OF HIGH STRENGTH CONCRETE

PURPOSE:To provide a simple manufacturing method and provide high durability and a high strength. CONSTITUTION:A method for manufacturing high strength concrete comprises the steps of filling mixture of iron material 1 and gravel or crushed stone 2 in a frame 3, pressing the mixture, press injecting...

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Bibliographische Detailangaben
Hauptverfasser:	TOBIUCHI YOSHIYUKI, KASAI HIDESHI, NARUSE HIROYASU, KAMIYA KIYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a simple manufacturing method and provide high durability and a high strength. CONSTITUTION:A method for manufacturing high strength concrete comprises the steps of filling mixture of iron material 1 and gravel or crushed stone 2 in a frame 3, pressing the mixture, press injecting mortar 5 in gaps existed after the pressing from below the frame, hardening obtained concrete member, and then curing it in the atmosphere. Its pressing pressure is 50-200MPa, and press injecting pressure of the mortar is 5-100atms. A particle diameter of rough aggregate is 15-20mm. A mixing ratio of the material to the gravel or the stone is (1:0.1)-(1:5). It is preferable that the mortar contains steel spheres in cement, and a particle size of the sphere is 0.08-5mm. An apparatus for executing the method comprises a mortar bob 6 and a hydraulic jack 7.