EXTRUSION MOLDING HYDRAULIC COMPOSITION

• Main Authors: YAMAKAWA TSUTOMU, HAYAKAWA KAZUHISA, KONISHI HIDEKAZU, ITOH RUMIKO
• Format: Patent
• Language: English; Korean
• Published: 20.01.2014
• Subjects: 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

The present invention relates to a hydraulic composition for extrusion molding, comprising water-soluble hydroxyalkylakylcellulose, cement, aggregate, reinforcement fibers and water. Provided is the hydraulic composition for extrusion molding, characterized that the water-soluble hydroxyalkylakylcellulose has 1.2-1.7 in degree of substitution of an alkyl group and that a total of degree of substitution of an alkyl group and substituted mole numbers of a hydroxyalkyl group are 1.5-2.0 as well as that a ratio of a glucose ring which is not replaced by an alkyl group and a hydroxyalkyl group in a unit of the glucose ring is less than 10 mol%. According to the present invention, the hydraulic composition for extrusion molding can be obtained which can promote shortening of curing time and has excellent extrusion molding characteristics under a condition in which the temperature of the composition is high.