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Accession number;99A0442586
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| Title;Utilization of Rice Husk Ash as an Admixture in High-Strength Concrete. |
| Author;
ISHIGURO SATORU
(Mie Univ., Fac. of Bioresour.)
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Journal Title;Bull Fac Bioresour Mie Univ
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Journal Code:Y0251B
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ISSN:0915-0471
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VOL.;NO.22;PAGE.63-69(1999)
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| Figure&Table&Reference;FIG.5, TBL.2, REF.26 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Rice husk ash produced by controlled field burning operations were ground in a ball mill for 60 min and used as a partial cement replacement material for high-strength concrete. Several properties such as chemical compositions, specific surface areas, particle-size distributions and X-ray diffraction pattern of the ash were determined. The strength development of the concrete containing up to 45 % rice husk ash by weight of the total cementing material was also investigated. The following results were obtained. (1) The 7-day, 28-day and 91-day compressive strengths of the rice husk ash concrete were higher than those of the control concrete without rice husk ash. (2) The 28-day maximum compressive strengths of the concretes were 54 MPa, 71 MPa and 87 MPa for the concretes with water-cementing material ratio was 50%, 40% and 30%, respectively. (3) The dosage of superplasticizer in concrete increased as the ash content of the cementing material increased. (author abst.) |
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