PRODUCTION METHOD OF COMPOSITION FOR MORTAR OR CONCRETE, PRODUCTION METHOD OF MOLDED ARTICLE FORMED BY MOLDING THE COMPOSITION, AND QUALITY CONTROL METHOD
PROBLEM TO BE SOLVED: To provide a production method of a composition for mortar or concrete allowing for quality control on freezing and thawing resistance, a production method of a molded article formed by molding the composition, and a quality control method.SOLUTION: The production method of a c...
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Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a production method of a composition for mortar or concrete allowing for quality control on freezing and thawing resistance, a production method of a molded article formed by molding the composition, and a quality control method.SOLUTION: The production method of a composition for mortar or concrete containing: a fine aggregate including a blast furnace slag fine aggregate; a bonding material including cement; and water is provided, comprising: an influence evaluation step of evaluating, with a predetermined freezing and thawing test, influence of granularity of the blast flag fine aggregate on freezing and thawing resistance of a molded article formed by molding the composite for mortar or concrete; a granularity adjustment step of adjusting, based on the evaluated result, the granularity of the blast furnace slag fine aggregate to granularity corresponding to predetermined freezing and thawing resistance; and a kneading step of kneading the fine aggregate including the blast furnace slag fine aggregate with the granularity adjusted, the bonding material including cement, and water.SELECTED DRAWING: None
【課題】凍結融解抵抗性に係る品質管理を可能にするモルタルまたはコンクリート用組成物の製造方法、それを成形してなる成形品の製造方法および品質管理方法を提供する。【解決手段】高炉スラグ細骨材を含む細骨材と、セメントを含む結合材と、水とを含有するモルタルまたはコンクリート用組成物を製造する方法であって、前記高炉スラグ細骨材の粒度が前記モルタルまたはコンクリート用組成物を成形してなる成形品の凍結融解抵抗性に与える影響を所定の凍結融解試験により評価する影響評価工程と、評価した結果に基づいて、前記高炉スラグ細骨材の粒度を所定の凍結融解抵抗性に対応する粒度に調整する粒度調整工程と、粒度を調整した前記高炉スラグ細骨材を含む細骨材と、セメントを含む結合材と、水とを混練する混練工程とを備えるようにする。【選択図】なし |
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