发明名称 |
Method of preparing mortar or concrete |
摘要 |
A method and apparatus of measuring water percentages of a fine aggregate comprising the steps of prewetting the fine aggregate, containing the prewetted fine aggregate in an air-tightly closed container, applying a centrifugal force to said container over a predetermined period to remove a portion of a quantity of water deposited on the fine aggregate, and measuring the water content remaining in or on the fine aggregate after being subjected to the centrifugal force, and thus determining a percentage of water adhered to the fine aggregate and a percentage of water of the fine aggregate in which interstice thereof is saturated with water while a surface thereof is dry.
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申请公布号 |
US4686852(A) |
申请公布日期 |
1987.08.18 |
申请号 |
US19850788227 |
申请日期 |
1985.10.16 |
申请人 |
ITO, YASURO;TAISEI CORPORATION |
发明人 |
ITO, YASURO;HIGUCHI, YOSHIRO;SHIKI, TAKESHI;TSUJI, YUKIKAZU;TSUJI, MASANORI;HAYAKAWA, MITSUTAKA |
分类号 |
B28C7/04;(IPC1-7):G01N15/00 |
主分类号 |
B28C7/04 |
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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