| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the formation of foam blow holes at the upper side of an uppermost reinforcement without hindering the growth of foams inherent in ALC. <P>SOLUTION: This method for manufacturing an ALC panel comprises steps for foaming raw material slurry 2 in a form 10 with reinforcing bars 11 restricted in the vertical and horizontal positions, swinging the form 10 in a swing period including at least a partial period in a range of ≥30 mm selected from an optimum period in which the upper face of the raw material slurry 2 rises above the uppermost reinforcement 3 of reinforcing bars 11 by 20 mm, and reaches a position lower by 10 mm than the completion height of foaming to delay the coagulation of the raw material slurry 2 by swinging. When the upper face of the raw material slurry 2 reaches a position lower by 30 mm to 2 mm than the completion height of foaming, the restriction of the vertical position of the reinforcing bars 11 to the form 11 is released, and the uppermost reinforcement 3 is allowed to follow the volumetric expansion of the raw material slurry 2 to suppress the formation of foam blow holes on the upper side of the uppermost reinforcement 3. <P>COPYRIGHT: (C)2009,JPO&INPIT |
