| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a building material which makes the most of advantages of gypsum boards and combines excellent water resistance allowing use in exterior, excellent bending strength after immersion or heating and high impact resistance and its manufacturing method. <P>SOLUTION: The composition (1) for building materials includes calcined gypsum and α-CaO/SiO<SB POS="POST">2</SB>. The composition (1) for building materials preferably has a content of α-CaO/SiO<SB POS="POST">2</SB>of 10-90 pts.mass with respect to 10-90 pts.mass of calcined gypsum (composition (2)). The method (3) of manufacturing a carbonated building material includes kneading the composition (1) or (2) for building materials with water to mix together, forming and then curing the formed product with carbonation. <P>COPYRIGHT: (C)2012,JPO&INPIT |
