4. Plasterboard

Gypsum plasterboard (PYL) consists of a gypsum matrix sandwiched between two cardboard sheets to form smooth rectangular boards. Board surfaces can vary according to the application, and the core can contain additives to give it additional properties.

Some of its properties can be linked to greater lightness (such as easier handling and installation), better fire protection and improved acoustic performance. All the characteristics of this rot-proof material have made it an essential element for masonry, rehabilitation, restoration and interior decoration ....

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Plasterboard

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page Final properties

Conclusions

Bibliography

(1) - VILLANUEVA DOMINGUEZ (L.), GARCIAS SANTOS (A.) - Manual del yeso. - ATEDY 2001, Madrid (2001).
(2) - GAWLICKI (M.) - Gypsum – another approach. - Cement Wapno Beton, 13(75), p. 86-96 (2009).
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Websites

Buildex Inc. Haydite Expanded-Shale Lightweight Aggregate http://www.buildex.com/haydite.html (page consulted on September 10, 2011)

Standards and norms

Plasterboard – Definitions, requirements and test methods - NF EN 520 - 2009
Test methods for masonry mortars – Part 19: Determination of water vapor permeability of hardened plaster mortars - NF EN 1015-19/A1 - 2005
Testing methods for natural stone – Determination of real and apparent densities and open and total porosities - NF EN 1936 - 2007
Building materials and products – Hygrothermal properties...

Patents

ROMÁN ALEMA (B.), TORRES ZACARÍAS (P.). – Mortero de yeso con vermiculita expandida y aditivado, y procedimiento para su obtencion. Patent (Spain). ES2331043 B1 (2010).

WHINFIELD and DICKSON. – Improvements Relating to the Manufacture of Highly Polymeric Substances, British Patent 578,079,1941. Polymeric Linear Terephthalic Esters, U.S. Patent 2,465,319 (1949).

GUTIÉRREZ-GONZÁLEZ...