ULTRA RAPID HARDENING TYPE HIGH TOUGHNESS FIBER-REINFORCED CONCRETE

摘要

PROBLEM TO BE SOLVED: To provide a concrete composition providing concrete good in filling property to a steel bar rear face without generating rougenenness on a road having a slope while having ultra rapid hardening property, excellent in processability, capable of thin film processing and having high toughness.SOLUTION: There is provided a fiber reinforced concrete composition containing cement of 100 pts.wt., a coarse aggregate of 120 to 210 pts.wt., a fine aggregate having absolute dry specific gravity of 2.3 or more of 105 to 280 pts.wt. and an organic fiber having fiber length of 18 to 30 mm of 3.2 to 7.0 pts.wt. and having fine aggregate percentage of 44.0 to 57.0%.SELECTED DRAWING: None