A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL FIBER FOR REINFORCING CEMENT-HARDENED BODY, AND CEMENT COMPOSITION
To provide a steel fiber for reinforcing a cement-hardened body, which prevents the cement-hardened body from being plucked during the deformation of the cement-hardened body when the steel fiber is used in the cement-hardened body, thereby imparting an excellent reinforcing effect to the cement-hardened body, and to provide a cement composition.SOLUTION: A steel fiber for reinforcing a cement-hardened body has a cross-sectional area of 0.01 mm2-1.0 mm2. In a waviness curve obtained by measuring a cross-sectional curve of an actual surface of the steel fiber with a laser microscope, blocking a long wavelength component coming from a scheme of the steel fiber with a λf outline curve filter in the cross-sectional curve, and blocking short wavelength component at a cut-off value of 3.0 μm, the steel fiber satisfies at least one of condition (I): an average height Wc of a waviness curve element in the waviness curve is 0.4 μm-10.0 μm, and condition (II): an average length Wsm of the waviness curve element in the waviness curve is 10.0 μm-80.0 μm.SELECTED DRAWING: Figure 1
【課題】セメント硬化体に用いた場合、セメント硬化体の変形時における引抜きが抑制され、セメント硬化体に対し、優れた補強効果を付与しうるセメント硬化体補強用鋼繊維及びセメント組成物を提供する。【解決手段】断面積が０．０１ｍｍ２〜１．０ｍｍ２の鋼繊維であって、レーザー顕微鏡を用いて、前記鋼繊維実表面の断面曲線を測定し、断面曲線にλｆ輪郭曲線フィルタで鋼繊維の概形からくる長波長成分を遮断し、且つ、短波長成分をカットオフ値３．０μｍにて遮断して得られるうねり曲線において、条件（Ｉ）：うねり曲線におけるうねり曲線要素の平均高さＷｃが０．４μｍ〜１０．０μｍである、及び条件（ＩＩ）：うねり曲線におけるうねり曲線要素の平均長さＷＳｍが１０．０μｍ〜８０．０μｍである、の少なくとも一方を満たすセメント硬化体補強用鋼繊維。【選択図】図１
STEEL FIBER FOR REINFORCING CEMENT-HARDENED BODY, AND CEMENT COMPOSITION
To provide a steel fiber for reinforcing a cement-hardened body, which prevents the cement-hardened body from being plucked during the deformation of the cement-hardened body when the steel fiber is used in the cement-hardened body, thereby imparting an excellent reinforcing effect to the cement-hardened body, and to provide a cement composition.SOLUTION: A steel fiber for reinforcing a cement-hardened body has a cross-sectional area of 0.01 mm2-1.0 mm2. In a waviness curve obtained by measuring a cross-sectional curve of an actual surface of the steel fiber with a laser microscope, blocking a long wavelength component coming from a scheme of the steel fiber with a λf outline curve filter in the cross-sectional curve, and blocking short wavelength component at a cut-off value of 3.0 μm, the steel fiber satisfies at least one of condition (I): an average height Wc of a waviness curve element in the waviness curve is 0.4 μm-10.0 μm, and condition (II): an average length Wsm of the waviness curve element in the waviness curve is 10.0 μm-80.0 μm.SELECTED DRAWING: Figure 1
【課題】セメント硬化体に用いた場合、セメント硬化体の変形時における引抜きが抑制され、セメント硬化体に対し、優れた補強効果を付与しうるセメント硬化体補強用鋼繊維及びセメント組成物を提供する。【解決手段】断面積が０．０１ｍｍ２〜１．０ｍｍ２の鋼繊維であって、レーザー顕微鏡を用いて、前記鋼繊維実表面の断面曲線を測定し、断面曲線にλｆ輪郭曲線フィルタで鋼繊維の概形からくる長波長成分を遮断し、且つ、短波長成分をカットオフ値３．０μｍにて遮断して得られるうねり曲線において、条件（Ｉ）：うねり曲線におけるうねり曲線要素の平均高さＷｃが０．４μｍ〜１０．０μｍである、及び条件（ＩＩ）：うねり曲線におけるうねり曲線要素の平均長さＷＳｍが１０．０μｍ〜８０．０μｍである、の少なくとも一方を満たすセメント硬化体補強用鋼繊維。【選択図】図１
STEEL FIBER FOR REINFORCING CEMENT-HARDENED BODY, AND CEMENT COMPOSITION
セメント硬化体補強用鋼繊維及びセメント組成物
HONMA DAISUKE (author) / KOJIMA MASAO (author) / NISHIOKA YUKIKO (author) / CIAO DI (author) / TANABE YUSUKE (author) / OTA YOSHIHIRO (author) / OFUJI YOSHIHIRO (author)
2020-07-02
Patent
Electronic Resource
Japanese
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