FIELD: chemistry.
SUBSTANCE: invention relates to production of construction materials based on gypsum binder. The crude mixture making gypsum boards contains the following, pts.wt: water 700 - 730, waste paper 25 - 30, phosphogypsum 83 - 87, urea-formaldehyde resin 2.5 - 3, starch 1 - 1.5, glass ground to specific surface area 4000 - 5000 cm2/g 3-5, capron fibre cut to 3-15 mm pieces 0.2 - 0.4.
EFFECT: high strength of gypsum boards.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MIX FOR MAKING GYPSUM BOARDS | 2009 |
|
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| MASS FOR PRODUCTION OF GYPSUM BOARDS | 2008 |
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| MASS FOR PRODUCTION OF GYPSUM PLATES | 2011 |
|
RU2473497C1 |
