| 摘要 |
Disclosed is a hydraulic composition which is mainly composed of and thus effectively uses fly ash and a ground granulated blast furnace slag powder, which are industrial by-products. The hydraulic composition is capable of providing a concrete which has a strength equivalent to that of high-strength concrete, without using cement. Also disclosed is concrete using the hydraulic composition. Specifically disclosed is a hydraulic composition which contains fly ash, a ground granulated blast furnace slag powder, gypsum, and slaked lime as an alkaline stimulant. The hydraulic composition contains 20-40% by mass of fly ash, 36-65% by mass of a ground granulated blast furnace slag powder, 5-10% by mass of gypsum, and 2-15% by mass of slaked lime. A high-strength concrete having a compression strength of not less than 60 N/mm2 is obtained by kneading coarse aggregate, fine aggregate, a high-performance water-reducing agent, and mixing water which has a water/hydraulic composition mass ratio of not more than 25%. |
