ULTRAHIGH-STRENGTH NON-SHRINKAGE GROUT MATERIAL AND ULTRAHIGH-STRENGTH NON-SHRINKAGE GROUT MATERIAL HARDENED ARTICLE

• Main Authors: KOIDE TAKAO, KAWAKAMI KOJI, NAGAOKA SEIICHI, MATSUDA HIROSHI, NISHIMOTO YOSHIKATSU, SUZUKI YASUNORI
• Format: Patent
• Language: English
• Published: 03.09.2009
• 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; REFRACTORIES; 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

PROBLEM TO BE SOLVED: To provide an ultrahigh-strength non-shrinkage grout material having a high strength development property capable of achieving a compressive strength of >160 N/mm2even in an ultrahigh-strength region at a water-binder ratio of ≤18.0% and an ultrahigh-strength non-shrinkage grout material hardened body. SOLUTION: The ultrahigh-strength non-shrinkage grout material contains a hydraulic binder consisting of cement A having an alite content of 60-70 wt.% and a Blaine specific surface area of 4,000-6,500 cm2/g, cement B having a belite content of 35-60 wt.% and a Blaine specific surface area of 3,000-4,000 cm2/g, an expansive admixture and a siliceous fine powder having a BET specific surface area of 1-20 m2/g, an artificial high-density fine aggregate having a maximum particle diameter of ≤1.2 mm, an absolute dry density of ≥2.90 g/cm3and a water absorption of ≤0.90%, and a chemical admixture. COPYRIGHT: (C)2009,JPO&INPIT