| abstract |
(57) [Problem] To provide a method for producing a cement-based sheet material which is excellent in productivity and inexpensive in production cost and which can obtain a high quality product. SOLUTION: A raw material obtained by mixing cement, water and a filler material is continuously supplied onto a conveyor, or supplied into a mold placed on the conveyor, and subjected to suction dehydration treatment on the conveyor. Is a method of manufacturing a cement-based plate material in which the raw material is cured while performing the step, and the vacuum suction pressure in the first suction dehydration step is 100 to 550 mmHg, and the final suction dehydration step. Vacuum suction pressure is 400-720m A method for producing a cement-based plate material having a mHg. |