| 摘要 |
<p>A dry mix suitable for making a building unit comprising, by dry weight, 10 to 50% sawdust, 20 to 50% cement and 5 to 40% plaster (calcium sulfate). In a preferred form the mix may also contain a glue. The resulting building unit may be formed into building blocks of preferred size 600mm x 300mm x 100mm. These building blocks when manufactured into their final form have improved thermal insulation and load bearing properties.</p> |
