METHOD TO PRODUCE BUILDING BOARD BASED ON CALCIUM SULFATE/BARIUM SULFATE Russian patent published in 2012 - IPC C04B28/14 G21F1/04 C04B111/20 

Abstract RU 2440314 C1

FIELD: construction.

SUBSTANCE: method to produce a gypsum-based board that protects against radiation includes the following stages: provision of powdery hardened alabaster with grain size d 50 from 30 to 50 mcm, provision of powdery barium sulfate, having grain size d 50 from 5 to 15 mcm, mixing powdery alabaster and powdery barium sulfate, tempering of powder mixtures with water to produce the ratio of water and dry substance from 0.50 to 0.60, shaping of a gypsum board at an ordinary plant for production of gypsum boards. The board that protects against radiation is prepared by the specified method. A gypsum plasterboard structure comprises at least one specified board. Application of a board that protects against radiation or a gypsum plasterboard for sound insulation. Invention is developed in invention subclaims.

EFFECT: higher extent of radiation absorption, preferably, X-ray one, with preservation of main physical and mechanical properties of a board.

10 cl, 4 ex, 1 dwg

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RU 2 440 314 C1

Authors

Kremer Georg

Sheller Lotar

Fogel' Petra

Grebner Gosbert

Khummel' Khans-Ul'Rikh

Dates

2012-01-20Published

2008-10-06Filed