FIELD: chemistry.
SUBSTANCE: invention relates to production of construction materials. The mixture for making heat-insulation boards contains the following, pts.wt: water 340-360; waste paper 260-300; phosphogypsum 50-60; urea-formaldehyde resin 4-6; starch 4-6; asbestos fibre cut into 5-50 mm pieces 6-10.
EFFECT: high strength of heat-insulation boards.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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| RAW MIXTURE FOR MAKING PLASTER BOARDS | 2007 |
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| MIXTURE FOR MAKING GYPSUM BOARDS | 2011 |
|
RU2455251C1 |
| MIXTURE FOR MAKING PHOSPHOGYPSUM BOARDS (VERSIONS) | 2012 |
|
RU2496737C1 |
