Ultra high early strength concrete.
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Accession number;99A0243812
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| Title;Ultra high early strength concrete. |
| Author;
NAGAOKA SEIICHI
(Sumitomo Osaka Cement Co., Ltd.)
TOMOTAKE HIROKAZU
(Taiheiyosemento)
MIURA HIROYUKI
(Onoda Corp.)
MIHARA TOSHIO
(Denki Kagaku Kogyo K.K.)
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Journal Title;Cement & Concrete
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Journal Code:F0277A
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ISSN:0371-0718
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VOL.;NO.624;PAGE.49-56(1999)
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| Figure&Table&Reference;FIG.11, TBL.8, REF.17 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The Ultra high early strength Portland cement is regulated in JIS A 5210, but it has been not produced. So, in all Ministry of Construction professional "development of the application technology of new basic materials and new materials to the construction business", the Ultra high early strength of compression strength over 30N/mm2 at one day was developed by cooperation of the officials and people. There are 2 types. The one is a cement system made by gringing of specially early strength cement clinker.The other one is an admixture system made by controling the generation time and the crystal size of the ettringite. This paper introduces the history, the properties, the applications and examples of construction concerning the development of the Ultra early strength concrete. As construction examples, there are concrete pavement construction, concrete slab construction having the increased thickness, thin layer overlay, RCCP, airport pavement repair work, machine foundation repair work of factory, repair work of crane basement, floor concrete of architecture. |
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