| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight high strength concrete thin sheet of which high toughness can be secured. SOLUTION: The high strength concrete thin sheet comprises: cement; aggregate with the maximum grain size of≤2 mm; pozzolan fine powder with a primary grain size of≤1μm; quartz powder with a mean grain size of 3 to 20μm; acicular or thin piece-shaped particles with a mean grain size of≤1 mm; a water-reducing admixture; an organic fiber; and water. The mass ratio of the water to the total mass of the cement and the pozzolan fine powder lies in the range of 8 to 24%, the length of the organic fiber is≥2 mm, the ratio of the length to the diameter in the organic fiber is≥20, the ratio of the average length of the organic fiber to the maximum grain size of the aggregate is≥10, and the quantity of the organic fiber is <8% of the volume of the concrete after setting. The organic fiber-containing high strength concrete is arranged with a high strength mesh having a high yield point as a tensile steel, i.e. with a mesh knitted so as to be a lattice shape having an element wire diameter of 0.5 to 5.0 mm and a network size of 5 to 60 mm, and is reinforced. COPYRIGHT: (C)2005,JPO&NCIPI
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