CEMENT ADMIXTURE FOR LONG DISTANCE PRESSURE FEED, PLASTICITY INJECTION MATERIAL, AND INJECTION METHOD

• Main Authors: KUSHIHASHI TAKUMI, TANAKA HIDEHIRO, MIZUSHIMA KAZUYUKI
• Format: Patent
• Language: English
• Published: 24.02.2014
• Subjects: ADHESIVES; 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; DYES; EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LARGE UNDERGROUND CHAMBERS; LIME, MAGNESIA; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; REFRACTORIES; SHAFTS; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE; TUNNELS

PROBLEM TO BE SOLVED: To provide a cement admixture for long distance pressure feed and an injection method in which curing and precipitation of a cement milk in long distance pipe arrangement are prevented, the cement milk can be made to remain in the pipe arrangement during night (day time in night construction), thereby disposal of material A in the pipe arrangement and a work of cleaning or the like of the pipe arrangement can be largely reduced, and a construction period, manpower or the like can be reduced, and that have inexpensive price.SOLUTION: A cement admixture for long distance pressure feed includes dextrin and a cellulose derivative, a plasticity injection material includes: a material A that is a cement milk; a material B that is a plasticization material; and a material C, wherein the material A includes cement and the cement admixture for long distance pressure, the material B includes liquid glass, and the material C includes an acryl acid ester copolymer emulsion, and an injection method comprises mixing 150-5,000 pts.vol. of the material A, 50 pts.vol. of the material B, and 50 pts.vol. of the material C in the plasticity injection material right before the injection.