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    • 8. 发明专利
    • Additive for sludge water
    • 泥浆添加剂
    • JP2010214909A
    • 2010-09-30
    • JP2009067203
    • 2009-03-19
    • Nof CorpTokyo Institute Of Technology国立大学法人東京工業大学日油株式会社
    • SAKAI ETSUROYAMADA KOJIKAKINUMA YASUOMATSUI TATSUYAITO AKINORI
    • B28C7/00C08F216/14C08F222/00
    • PROBLEM TO BE SOLVED: To provide an additive for sludge water delaying setting of cement in sludge water, bringing about high dispersion effects when reused as sludge water to a cement composition, especially to the cement composition containing silica fume, improving strength of obtained hardened matter, still further, bringing about high dispersion effects to sludge water obtained from the cement composition obtained by using the sludge water, namely to the repeated use of sludge water.
      SOLUTION: This additive for sludge water is characterized in that the carbon number of the main chain calculated from the weight-average molecular weight and the average addition mole number of oxyalkylene groups of polyoxyalkylene group of the side chain satisfy the relation: 2≤(carbon number calculated from weight-average molecular weight)/(average addition mole number of oxyalkylene group of polyoxyalkylene group of side chain)≤10, in a polycarboxylic acid-based copolymer having a polyoxyalkylene group in the side chain.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为污泥水泥中水泥的污泥延迟设置提供添加剂,当作为污泥水重新用于水泥组合物,特别是含有硅灰的水泥组合物时,会产生高分散效果,提高强​​度 获得的硬化物质,进一步地,对通过使用污泥水获得的水泥组合物获得的污泥水,即重复使用污泥水,产生高分散效果。 解决方案:该污泥水添加剂的特征在于,由侧链的聚氧化烯基的氧化烯基的重均分子量和平均加成摩尔数计算出的主链的碳数满足关系式2 在侧链中具有聚氧化烯基的多元羧酸系共聚物中,≤(由重均分子量计算的碳数)/(侧链的聚氧化烯基的氧化烯基的平均加成摩尔数)≤10。 版权所有(C)2010,JPO&INPIT