| 摘要 |
<p>The dry mortar comprises an additive, which consists of natural graphite, expanded graphite and/or carbon black, clay, silt and sand, and a portion of clay dry mortar. The particle size of natural graphite, the expanded graphite and/or the carbon black are: 1 mu m to 10 mm; and 180-1200 mu m. The additive contains different grain sizes of the natural graphite, the expanded graphite and/or the carbon black. An amount of the additive is 5-25 wt.% based on the total weight of the dry mortar. An independent claim is included for a structure or building.</p> |
