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METHOD OF PRODUCING CEMENT COMPOSITION, AND CEMENT COMPOSITION
To suitably control cracking of a cement composition.SOLUTION: There is provided a cement composition production method of producing a cement composition by blending a shrinkage inhibitor, a one-liquid type high-performance water reducing agent, and a steel fiber without adding a swelling agent, which method is characterized by comprising a preparation step of preparing a calculation formula of calculating a self shrinkage strain ratio, namely a ratio of the self shrinkage strain of the cement composition relative to the self shrinkage strain of a base cement composition with the high performance water reducing agent blended therein, according to the blended amount of the steel fiber and the fiber strength of the steel fiber, and a production step of producing the cement composition subsequent to determining the blended amount of the steel fiber and the fiber strength thereof according to the calculation formula.SELECTED DRAWING: Figure 1
【課題】セメント組成物のひび割れを適切に抑制することである。【解決手段】収縮低減剤一液型高性能減水剤と鋼繊維とを混入し、膨張材を混入せずに、セメント組成物を製造するセメント組成物の製造方法であって、高性能減水剤を混入したベースセメント組成物の自己収縮ひずみに対する前記セメント組成物の自己収縮ひずみの比である自己収縮ひずみ比を、前記鋼繊維の混入量と前記鋼繊維の繊維強度とに基づいて算出するための算出式を準備する準備ステップと、前記算出式に基づいて前記混入量と前記繊維強度を決めて、前記セメント組成物を製造する製造ステップと、を有することを特徴とする。【選択図】図１
METHOD OF PRODUCING CEMENT COMPOSITION, AND CEMENT COMPOSITION
To suitably control cracking of a cement composition.SOLUTION: There is provided a cement composition production method of producing a cement composition by blending a shrinkage inhibitor, a one-liquid type high-performance water reducing agent, and a steel fiber without adding a swelling agent, which method is characterized by comprising a preparation step of preparing a calculation formula of calculating a self shrinkage strain ratio, namely a ratio of the self shrinkage strain of the cement composition relative to the self shrinkage strain of a base cement composition with the high performance water reducing agent blended therein, according to the blended amount of the steel fiber and the fiber strength of the steel fiber, and a production step of producing the cement composition subsequent to determining the blended amount of the steel fiber and the fiber strength thereof according to the calculation formula.SELECTED DRAWING: Figure 1
【課題】セメント組成物のひび割れを適切に抑制することである。【解決手段】収縮低減剤一液型高性能減水剤と鋼繊維とを混入し、膨張材を混入せずに、セメント組成物を製造するセメント組成物の製造方法であって、高性能減水剤を混入したベースセメント組成物の自己収縮ひずみに対する前記セメント組成物の自己収縮ひずみの比である自己収縮ひずみ比を、前記鋼繊維の混入量と前記鋼繊維の繊維強度とに基づいて算出するための算出式を準備する準備ステップと、前記算出式に基づいて前記混入量と前記繊維強度を決めて、前記セメント組成物を製造する製造ステップと、を有することを特徴とする。【選択図】図１
METHOD OF PRODUCING CEMENT COMPOSITION, AND CEMENT COMPOSITION
セメント組成物の製造方法、及び、セメント組成物
YOSHIDA RISA (author) / KAMISHIRO TAIDO (author)
2021-03-11
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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