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    • 9. 发明专利
    • High strength cement-based hardened body
    • 高强度水泥基硬化体
    • JP2011046590A
    • 2011-03-10
    • JP2010157797
    • 2010-07-12
    • Taiheiyo Cement Corp太平洋セメント株式会社
    • SATO MASAMITANAKA TOSHITSUGUSUGIYAMA SHINGO
    • C04B28/02C04B14/06C04B14/48C04B16/06C04B18/14C04B24/26C04B24/32C04B103/60C04B111/34
    • C04B28/02C04B14/02C04B24/023C04B2103/302C04B2103/58C04B24/281
    • PROBLEM TO BE SOLVED: To provide a high strength cement-based hardened body small in autogeneous shrinkage. SOLUTION: The high strength cement-based hardened body is a hardened body of a cement composition containing an autogeneous shrinkage reducing agent for cement which comprises an oxyalkylene compound expressed by general formula (1), cement, a water reducing agent, aggregate, a fiber and water and has ≥60 N/mm 2 compressive strength. General formula (1) is RO-[(EO) m /(PO) n ]-H [in the formula, R expresses an 8C-14C akyl group, EO expresses an oxypropylene group, [(EO)m/(PO)n] expresses the independent addition of ethylene oxide or propylene oxide, or block or random addition wherein the order of the block addition is without regard in combination use as the whole, (m) expresses the average number of addition moles of ethylene oxide and is 0-10, (n) expresses the average number of addition moles of propylene oxide and is 0-5 and the total number of (m) and (n) is 1-10]. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种自动收缩小的高强度水泥基硬化体。 解决方案:高强度水泥基硬化体是一种水泥组合物的硬化体,其含有水泥用自收缩减缩剂,其包括由通式(1)表示的氧化烯化合物,水泥,减水剂,骨料 ,纤维和水,具有≥60N / mm 2 抗压强度。 通式(1)是RO - [(EO) /(PO)] - H [在式中,R表示8C-14C烷基,EO 表示氧化丙烯基,[(EO)m /(PO)n]表示环氧乙烷或环氧丙烷的独立加成,或嵌段或无规添加,其中嵌段加成的顺序不作为整体组合使用( m)表示环氧乙烷的平均加成摩尔数,为0-10,(n)表示环氧丙烷的平均加成摩尔数,为0-5,(m)和(n)的总数为1 -10]。 版权所有(C)2011,JPO&INPIT