A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HIGH TENSILE STRENGTH MORTAR EXCELLENT IN FATIGUE DURABILITY
PROBLEM TO BE SOLVED: To provide a fiber-reinforced mortar having high compressive strength and tensile strength and having high fatigue durability to repeated load while maintaining sufficient flowability.SOLUTION: A high tensile strength mortar is provided which contains cement, a fine aggregate, a pozzolan powder admixture, a reinforcing fiber and an additive and which is characterized in that at a water powdery body ratio of 9 to 13%, a standing flow value just after mixing is 170 mm or more, the number of repeated stress at upper limit stress ratio of 65% is 1,500,000 times or more, compressive strength at an age of 28 days is 150 N/mmor more, tensile strength at an age of 28 days is 7.0 N/mmor more. It is preferable that at a water powdery body ratio of 9 to 13%, a standing flow value just after mixing is 200 mm or more, a standing flow value by 3 hours after mixing is 190 mm or more and a tensile strength at an age of 28 days is 8.0 N/mmor more.SELECTED DRAWING: Figure 5
【課題】高い圧縮強度および引張強度を有すると共に、十分な流動性を維持しつつ、繰返し荷重に対する高い疲労耐久性を有する繊維補強モルタルを提供する。【解決手段】セメント、細骨材、ポゾラン質粉末混和材、補強繊維、および混和剤を含有するモルタルであり、水粉体比９〜１３％において練混ぜ直後の静置フロー値が１７０mm以上であって、上限応力比６５％における繰返し応力回数が１５０万回以上であり、材齢２８日の圧縮強度が１５０Ｎ/mm2以上であって、材齢２８日の引張強度が７.０N/mm２以上であることを特徴とし、好ましくは、水粉体比９〜１３％において、練混ぜ直後の静置フロー値が２００mm以上であって、練混ぜ３時間までの静置フロー値が１９０mm以上であり、材齢２８日の引張強度が８.０N/mm２以上である高引張強度モルタル。【選択図】図５
HIGH TENSILE STRENGTH MORTAR EXCELLENT IN FATIGUE DURABILITY
PROBLEM TO BE SOLVED: To provide a fiber-reinforced mortar having high compressive strength and tensile strength and having high fatigue durability to repeated load while maintaining sufficient flowability.SOLUTION: A high tensile strength mortar is provided which contains cement, a fine aggregate, a pozzolan powder admixture, a reinforcing fiber and an additive and which is characterized in that at a water powdery body ratio of 9 to 13%, a standing flow value just after mixing is 170 mm or more, the number of repeated stress at upper limit stress ratio of 65% is 1,500,000 times or more, compressive strength at an age of 28 days is 150 N/mmor more, tensile strength at an age of 28 days is 7.0 N/mmor more. It is preferable that at a water powdery body ratio of 9 to 13%, a standing flow value just after mixing is 200 mm or more, a standing flow value by 3 hours after mixing is 190 mm or more and a tensile strength at an age of 28 days is 8.0 N/mmor more.SELECTED DRAWING: Figure 5
【課題】高い圧縮強度および引張強度を有すると共に、十分な流動性を維持しつつ、繰返し荷重に対する高い疲労耐久性を有する繊維補強モルタルを提供する。【解決手段】セメント、細骨材、ポゾラン質粉末混和材、補強繊維、および混和剤を含有するモルタルであり、水粉体比９〜１３％において練混ぜ直後の静置フロー値が１７０mm以上であって、上限応力比６５％における繰返し応力回数が１５０万回以上であり、材齢２８日の圧縮強度が１５０Ｎ/mm2以上であって、材齢２８日の引張強度が７.０N/mm２以上であることを特徴とし、好ましくは、水粉体比９〜１３％において、練混ぜ直後の静置フロー値が２００mm以上であって、練混ぜ３時間までの静置フロー値が１９０mm以上であり、材齢２８日の引張強度が８.０N/mm２以上である高引張強度モルタル。【選択図】図５
HIGH TENSILE STRENGTH MORTAR EXCELLENT IN FATIGUE DURABILITY
疲労耐久性に優れた高引張強度モルタル
KAMIYA KIYOSHI (author) / TOKUNAGA KENJI (author) / KIMOTO DAISUKE (author)
2016-12-15
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
Tensile strength of cement mortar and concrete
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