Editing Building material (section)

===Gypsum concrete===
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[[Gypsum concrete]] is a mixture of [[gypsum]] plaster and fibreglass [[roving]]s. Although plaster and fibres [[fibrous plaster]] have been used for many years, especially for ceilings, it was not until the early 1990s that serious studies of the strength and qualities of a walling system [[Rapidwall]], using a mixture of gypsum plaster and 300mm plus fibreglass rovings, were investigated. With an abundance of gypsum (naturally occurring and by-product chemical FGD and phospho gypsums) available worldwide, Gypsum concrete-based building products, which are fully recyclable, offer significant environmental benefits.