| 摘要 |
Compsn. for prepn. of plaster and mortar and for the mfr. of building blocks is a ready blended mixture which is transported and stored in a moisture proof packaging. The mixture comprises lime and ballast, e.g., sand, dolomite and/or trass. The ratio of lime to sand is 1:6 to 1:2. The particle size of the sand is 0-6mm for priming plaster and 0-3mm for the under-plaster. The packaging is aluminium or plastic film which prevents the ingress of moisture. The film can be combined with paper. |
