MANUFACTURING PROCESS OF HIGH STRENGTH SPUN CONCRETE SHAPED BODY

PROBLEM TO BE SOLVED: To provide an industrially beneficial manufacturing process by which high strength spun concrete shaped bodies are easily manufactured without necessitating special facilities such as an autoclave. SOLUTION: The manufacturing process of the high strength spun concrete shaped bo...

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Hauptverfasser:	FUKUDA YASUAKI, TSUKADA KAZUHISA
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an industrially beneficial manufacturing process by which high strength spun concrete shaped bodies are easily manufactured without necessitating special facilities such as an autoclave. SOLUTION: The manufacturing process of the high strength spun concrete shaped bodies comprises blending a polycarboxylic acid-based powdery cement dispersing agent in an amount of 0.02-0.4 wt.% reduced by the solid content of the polycarboxylic acid-based polymer compound to 400-600 kg/m3of unit cement content composed mainly of a high early strength or an ultra high early strength portland cement, setting a water cement ratio at ≤32%, shaping the concrete material and subjecting it to atmospheric pressure steam curing. COPYRIGHT: (C)2005,JPO&NCIPI