| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an ultrahigh-strength high-durability self-leveling material having high strength development property and high durability capable of achieving a compressive strength of >150 N/mm<SP>2</SP>even in an ultrahigh-strength region at a water-binder ratio of≤20.0% and an ultrahigh-strength high-durability self-leveling material hardened body. <P>SOLUTION: The ultrahigh-strength high-durability self-leveling material contains a hydraulic binder consisting of cement A having an alite content of 60-70 wt.% and a Blaine specific surface area of 4,000-6,500 cm<SP>2</SP>/g, cement B having a belite content of 35-60 wt.% and a Blaine specific surface area of 3,000-4,000 cm<SP>2</SP>/g, an expansive admixture and a siliceous fine powder having a BET specific surface area of 1-20 m<SP>2</SP>/g, an artificial high-density fine aggregate having a maximum particle diameter of≤1.2 mm, an absolute dry density of≥2.90 g/cm<SP>3</SP>and a water absorption of≤0.90%, and a chemical admixture. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
