发明名称 |
HIGH-TEMPERATURE CURING CEMENT ADDITIVE AND CEMENT CURED BODY USING THE SAME |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-temperature curing cement additive and a cement cured body using the additive for preventing reduction in long-period strength of a cement cured body and deterioration in physical properties such as durability even when high-temperature curing at 60°C or more is carried out for achieving initial strength or when unexpected high-temperature hysteresis is applied by hydration heat of cement itself such as mass concrete. <P>SOLUTION: The high-temperature curing cement additive is in a sol solution state wherein amorphous silica with a mean diameter of 10-500 nm is dispersed in a liquid phase. The high-temperature curing cement additive has an API value of 55% or more by the pozzolanic activity quick determination method (API method) and reduces an appearance period of a hydration heat peak in an alight phase in measurement of the hydration heat rate of cement to water by a microcalorimeter. <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2012041243(A) |
申请公布日期 |
2012.03.01 |
申请号 |
JP20100186001 |
申请日期 |
2010.08.23 |
申请人 |
TAIHEIYO CEMENT CORP |
发明人 |
MORI HIROAKI;KUGA RYUICHIRO;UZAWA MASAMI |
分类号 |
C04B22/06;C04B14/04;C04B28/02;C04B40/02 |
主分类号 |
C04B22/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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