PROCESS FOR PROFUCING OF CALCIUM SILICATE SHAPES

• Main Authors: LEE, HAE - MYONG, KIM, MUN - HWAN, MIN, DAE - HONG
• Format: Patent
• Language: English; Korean
• Published: 12.10.1995
• Edition: 6
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The calcium silicate molded article is manufactured by: (a) reacting a mixture of siliceous and calcareous raw material and a diluted water glass at the room temperature and pressure to make a raw slurry contg. amorphous calcium silicate; (b) agitating and hydrothermally reacting it at 190 deg.C or more and 15 kg/cm2 saturated vapor pressure or more to make an aq. hydrous calcium silicate slurry; (c) adding 0.1-10 wt.pts cationic flocculent and 0.2-20 wt.pts anionic and nonionic flocculent, and 0.25-20 wt.pts reinforced fiber to the slurry; and (d) molding the mixture, and drying it. The molded article is used as refractory, water-absorbing and insulating materials.