PURPOSE: To obtain a water-hardening composition having excellent fluidity by compounding a specific component containing a latent water-hardening material and to obtain a hardened material having high strength, durability and water resistance by kneading the composition with water followed by forming and hardening
CONSTITUTION: This water hardened composition is obtained by compounding (A) 100 pts.wt. of a latent water-hardening material such as water granulated slag from a blast furnace having Blain's specific surface area of ≥2000cm2/g or converter slag with (B) 2-50 pts.wt. of superfine powder having an average particle diameter of ≤10μm, (C) 2-50 pts.wt. of needle-shaped inorganic powder and/or 1-20 pts.wt. of fibrous material, (D) 0.1-10 pts.wt. of a high polymeric dispersant having a molecular weight of 1000-200000 based on 100 pts.wt. of the components A+B, (E) 0.2-20 pts.wt. of a hardening stimulating agent based on 100 pts.wt. of the components A+B, (F) 10-200 pts.wt. of water based on 100 pts.wt. of the components A+B, and optionally (G) 0.001-5 pts.wt. of a thickener consisting of an hydrophilic polymer having a molecular weight of ≥20000 based on 100 pts.wt. of the components A+B.
IKEDA KOICHI
KURODA YASUO
MATSUMOTO OSAMU
HASHIMOTO MATSUO
KURABAYASHI KATSUHIKO
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