| 摘要 |
<p>Provided is a mortar that is capable of minimizing expansion and contraction and joint opening associated therewith, even when used as a joint in a place with large temperature variations. The mortar contains 80 to 98 mass% of Al2O3, 1 to 18 mass% of SiO2, 0.1 to 6.0 mass% of B2O3, and 0.05 to 1.0 mass% of alumina fibers.</p> |
