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METHOD FOR PRODUCING HIGH-STRENGTH FIBER-REINFORCED MORTAR
PROBLEM TO BE SOLVED: To provide a production method capable of producing a high-strength fiber-reinforced mortar while reducing cost.SOLUTION: A method for producing a high-strength fiber-reinforced mortar includes: kneading and mixing 10-12% of water by a weight ratio with respect to powder, with powder containing 30-40 wt.% of ordinary cement, 10-15 wt.% of pozzolanic fine powder, 45-55 wt.% of a fine aggregate having a particle diameter of 0.1-1.0 mm and 0.55-0.65 wt.% of a chemical admixture. A curved fiber piece 2 that has a diameter of 0.15-0.3 mm and has a tensile strength of 2,000-3,500 N/mmand is curved and formed is kneaded and mixed thereto by a volume ratio of 1.5-2.0% with respect to the powder. The curved fiber piece 2 is formed by breaking a substance obtained by cutting a twisted wire of a steel fiber with a length of 10-20 mm. A straight line length L1 connecting both ends 3 and 3 thereof is set at 10-20 mm. A maximum depth L2 of the curved fiber piece with respect to the straight line is set at 0.5-1.5 mm.SELECTED DRAWING: Figure 1
【課題】高強度繊維補強モルタルをコスト低減を図って製造し得る製造方法を提供する。【解決手段】普通セメントを３０〜４０重量％と、ポゾラン質微粉末を１０〜１５重量％と、粒径０．１〜１．０ｍｍの細骨材を４５〜５５重量％と、化学混和剤を０．５５〜０．６５重量％とを含む粉体に、水を該紛体に対する重量比で１０〜１２％含有させて練り混ぜる。直径が０．１５〜０．３ｍｍで引張強度が２０００〜３５００Ｎ／ｍｍ2である湾曲形成された湾曲繊維片２を、紛体に対する体積比で１．５〜２．０％練り混ぜる。湾曲繊維片２は、鋼繊維の縒り線を１０〜２０ｍｍの長さに切断したものをばらして形成する。その両端３，３を結ぶ直線長さＬ１は１０〜２０ｍｍに設定する。該直線に対する該湾曲繊維片の最大深さＬ２は０．５〜１．５ｍｍに設定する。【選択図】図１
METHOD FOR PRODUCING HIGH-STRENGTH FIBER-REINFORCED MORTAR
PROBLEM TO BE SOLVED: To provide a production method capable of producing a high-strength fiber-reinforced mortar while reducing cost.SOLUTION: A method for producing a high-strength fiber-reinforced mortar includes: kneading and mixing 10-12% of water by a weight ratio with respect to powder, with powder containing 30-40 wt.% of ordinary cement, 10-15 wt.% of pozzolanic fine powder, 45-55 wt.% of a fine aggregate having a particle diameter of 0.1-1.0 mm and 0.55-0.65 wt.% of a chemical admixture. A curved fiber piece 2 that has a diameter of 0.15-0.3 mm and has a tensile strength of 2,000-3,500 N/mmand is curved and formed is kneaded and mixed thereto by a volume ratio of 1.5-2.0% with respect to the powder. The curved fiber piece 2 is formed by breaking a substance obtained by cutting a twisted wire of a steel fiber with a length of 10-20 mm. A straight line length L1 connecting both ends 3 and 3 thereof is set at 10-20 mm. A maximum depth L2 of the curved fiber piece with respect to the straight line is set at 0.5-1.5 mm.SELECTED DRAWING: Figure 1
【課題】高強度繊維補強モルタルをコスト低減を図って製造し得る製造方法を提供する。【解決手段】普通セメントを３０〜４０重量％と、ポゾラン質微粉末を１０〜１５重量％と、粒径０．１〜１．０ｍｍの細骨材を４５〜５５重量％と、化学混和剤を０．５５〜０．６５重量％とを含む粉体に、水を該紛体に対する重量比で１０〜１２％含有させて練り混ぜる。直径が０．１５〜０．３ｍｍで引張強度が２０００〜３５００Ｎ／ｍｍ2である湾曲形成された湾曲繊維片２を、紛体に対する体積比で１．５〜２．０％練り混ぜる。湾曲繊維片２は、鋼繊維の縒り線を１０〜２０ｍｍの長さに切断したものをばらして形成する。その両端３，３を結ぶ直線長さＬ１は１０〜２０ｍｍに設定する。該直線に対する該湾曲繊維片の最大深さＬ２は０．５〜１．５ｍｍに設定する。【選択図】図１
METHOD FOR PRODUCING HIGH-STRENGTH FIBER-REINFORCED MORTAR
高強度繊維補強モルタルの製造方法
TANAKA YOSHITO (author) / SHIRASAKI YOSHIO (author)
2018-10-11
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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