| 摘要 |
PURPOSE:To reduce weight and to improve fire resistance, heat insulating property and dryability by incorporating hydraulic cement, specified lightweight aggregate and ethylhydroxyethylcellulose. CONSTITUTION:Ethylhydroxyethylcellulose is added to hydraulic cement by 0.1-10kg per 100kg of the cement, they are kneaded with water and then lightweight aggregate having <=0.6g/cm<3> bulk density and <=10mm diameter, e.g. expanded perlite is added by 0.3-1.5m<3> to obtain a lightweight compsn. An org. acid such as citric acid, a synthetic resin emulsion such as an ethylene vinyl acetate resin emulsion and a filler such as fireproof clay are further added as required. |
