To obtain a composition capable of providing a hardened product, having a low specific gravity and a high strength and excellent in water resistance by including specific four components therein.
This hydraulic composition is obtained by including (A) a granulated blast furnace slag which is a fine powdery substance having latent hydraulic properties and 2,000-15,000cm2/g specific surface area, (B) an ultrafine powdery substance having a smaller average particle diameter than that of the component A by one order or more and ≤1μm average particle diameter such as a silica fume or a fly ash in an amount of 3-30 pts.wt. in 100 pts.wt. total amount of the components A and B, (C) a water-soluble substance, used for accomplishing an improvement in operating efficiency, moldability and physical properties and having effects on an improvement in especially the fluidity such as sodium polyacrylate in a low-molecular weight water- soluble polymer in an amount of 0.1-10 pts.wt. based on 100 pts.wt. total amount of the components A and B and a water-soluble substance such as hydroxypropyl methyl cellulose in a water-soluble polymer having thickening effects in an amount of 0.5-15 pts.wt. based on 100 pts.wt. total amount of the components A and B and (D) an aggregate having ≤1 specific gravity and ≥300kgf/cm2 compressive strength therein.
TAKAHASHI TOSHIO
TANABE YOSHIHIRO
YAHAGI CHIEKO
ICHIMURA TAKAKO
Next Patent: GYPSUM-BASED COMPOSITION