A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RETARDER FOR ALKALI SILICA REACTION, METHOD FOR PRODUCTION OF CEMENT HARDENED BODY, AND METHOD FOR RETARDATION OF ALKALI SILICA REACTION
PROBLEM TO BE SOLVED: To provide a retarder and the like, having high retardation effect for alkali silica reaction and not influencing the properties of concrete and the like.SOLUTION: The retarder for retardation of alkali silica reaction according to the present invention includes aluminum nitrate. The method for production of a cement hardened body according to the present invention is a method for production of a cement hardened body using an aggregate that has been immersed in the retarder for retardation of alkali silica reaction for at least one day. Moreover, the method for retardation of alkali silica reaction according to the present invention includes at least a step of immersing an aggregate in the retarder for alkali silica reaction for at least one day and a step of producing a cement hardened body using the immersed aggregate, thereby retarding alkali silica reaction of the cement hardened body.SELECTED DRAWING: Figure 1
【課題】本発明は、アルカリシリカ反応の抑制効果が高く、かつコンクリート等の物性に影響しないアルカリシリカ反応の抑制剤等を提供する。【解決手段】本発明のアルカリシリカ反応の抑制剤は硝酸アルミニウムを含むものである。また、本発明のセメント質硬化体の製造方法は、前記アルカリシリカ反応の抑制剤中に、１日以上浸漬してなる骨材を用いてセメント質硬化体を製造する方法である。さらに、本発明のアルカリシリカ反応の抑制方法は、前記アルカリシリカ反応の抑制剤中に、１日以上骨材を浸漬する骨材の浸漬工程と、該浸漬した骨材を用いてセメント質硬化体を製造する製造工程とを少なくとも経て、該セメント質硬化体のアルカリシリカ反応を抑制する方法である。【選択図】図１
RETARDER FOR ALKALI SILICA REACTION, METHOD FOR PRODUCTION OF CEMENT HARDENED BODY, AND METHOD FOR RETARDATION OF ALKALI SILICA REACTION
PROBLEM TO BE SOLVED: To provide a retarder and the like, having high retardation effect for alkali silica reaction and not influencing the properties of concrete and the like.SOLUTION: The retarder for retardation of alkali silica reaction according to the present invention includes aluminum nitrate. The method for production of a cement hardened body according to the present invention is a method for production of a cement hardened body using an aggregate that has been immersed in the retarder for retardation of alkali silica reaction for at least one day. Moreover, the method for retardation of alkali silica reaction according to the present invention includes at least a step of immersing an aggregate in the retarder for alkali silica reaction for at least one day and a step of producing a cement hardened body using the immersed aggregate, thereby retarding alkali silica reaction of the cement hardened body.SELECTED DRAWING: Figure 1
【課題】本発明は、アルカリシリカ反応の抑制効果が高く、かつコンクリート等の物性に影響しないアルカリシリカ反応の抑制剤等を提供する。【解決手段】本発明のアルカリシリカ反応の抑制剤は硝酸アルミニウムを含むものである。また、本発明のセメント質硬化体の製造方法は、前記アルカリシリカ反応の抑制剤中に、１日以上浸漬してなる骨材を用いてセメント質硬化体を製造する方法である。さらに、本発明のアルカリシリカ反応の抑制方法は、前記アルカリシリカ反応の抑制剤中に、１日以上骨材を浸漬する骨材の浸漬工程と、該浸漬した骨材を用いてセメント質硬化体を製造する製造工程とを少なくとも経て、該セメント質硬化体のアルカリシリカ反応を抑制する方法である。【選択図】図１
RETARDER FOR ALKALI SILICA REACTION, METHOD FOR PRODUCTION OF CEMENT HARDENED BODY, AND METHOD FOR RETARDATION OF ALKALI SILICA REACTION
アルカリシリカ反応の抑制剤、セメント質硬化体の製造方法、およびアルカリシリカ反応の抑制方法
KATSURA SHII (author) / UCHIDA MASATAKA (author) / OCHIAI TAKAO (author) / ERIGUCHI REI (author)
2018-04-05
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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