| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hydraulic composition having excellent mechanical properties such as self-compactability (i.e., excellent flowability and material segregation resistance) and outstanding workability before hardening as well as >=130 MPa compression strength and >=10 kJ/m<2> fracture energy after hardening. SOLUTION: This hydraulic composition includes (1) 100 pts.wt. cement particle with 500-5,000 cm<2> /g Blaine specific surface area, (2) 10-40 pts.wt. minute particle with 5-25 m<2> /g BET relative surface area, (3) 20-55 pts.wt. inorganic particle A with 5,000-30,000 cm<2> /g Blaine specific surface area which is larger than that of the above mentioned cement, (4) an aggregate with <=2 mm particle size whose content of <=75μm particle is 2.0 wt.% or less, (5) an organic fiber and/or carbon fiber. The aggregate content is 30-130 pts.wt. based on 100 pts.wt. which is the total amount of the cement, the minute particle and the inorganic particle. The content of the organic fiber and/or carbon fiber is 0.1-10.0 vol.% of the hydraulic compositions including water or the like.</p> |
