Gypsum industry news
Researchers prove carbon monoxide penetrates gypsum wallboard
06 September 2013US: Carbon monoxide (CO) from external sources can easily penetrate gypsum wallboard according to a study published in the Journal of the American Medical Association by Neil B Hampson, James R Holm and Todd G Courtney of the Virginia Mason Centre for Hyperbaric Medicine. The study is believed to be the first to examine the ability of CO to diffuse through gypsum wallboard.
In the study, a plexiglas chamber divided by various configurations of gypsum wallboard was used to determine whether CO diffuses across wallboard. Wallboard of various thicknesses were used. CO test gas was infused into the chamber and then CO concentrations were measured once per minute in each chamber for 24 hours. The authors sought to determine how rapidly a concentration of CO toxic to humans would be reached in the non-infused chamber and whether diffusion would then continue. The researchers found that CO diffused across single-layer gypsum wallboard of two thicknesses, double-layer wallboard and painted double-layer wallboard.
"Gypsum's permeability to CO is due to its porosity. The ability of CO to diffuse across gypsum wallboard may explain at least some instances of CO poisoning in contiguous residences. Exempting residences without internal CO sources from the legislation mandating CO alarms may put people in multifamily dwellings at risk for unintentional CO poisoning," said the study. Carbon monoxide poisoning causes about 500 accidental deaths annually in the US.
Three new plants and a new development centre for BNBM
19 March 2013China: Beijing New Building Materials Public Co Ltd (BNBM) has announced that it plans to invest US$58m to build three gypsum wallboard projects in China. BNBM, part of the massive state-controlled China National Building Material Co Ltd (CNBM) said that it will construct the plants to expand the domestic market for wallboard. In addition, the company will build a product development centre using a total investment of US$108m.
Saint-Gobain opens innovation centre in UK
19 March 2013UK: Saint-Gobain, the French building materials giant, has opened its new innovation centre on Great Portland Street in London, UK to showcase the company's products. Showcasing innovative and sustainable products, the centre contains product libraries and resources for specifiers alongside meeting spaces and conference facilities. The centre will display products from Saint-Gobain's many UK businesses, including Artex, British Gypsum, Ecophon, Saint-Gobain Glass, Isover, Pasquill and Weber.
Models of construction products and solutions provide a better understanding of how systems work in practice, whilst screens showcase products, solutions and other Saint-Gobain initiatives.
Speaking at the launch, Saint-Gobain's CEO Pierre-André de Chalendar said, "With this new Innovation Centre, Saint-Gobain opens up to professionals with a global vision of our market to help develop and stimulate research. This Innovation Centre reflects our ambition to become the reference for sustainable habitat, bringing innovative solutions to meet the main challenges of our time."
Germany: Scientists have observed tailor-made specialist micro-organisms directly 'feeding' on CO2-containing flue gases from lignite-fired power stations, in what is being described as a 'very promising' initial result of a research project run by RWE Power and Brain AG. The research may have interesting implications for the gypsum industry, which already uses desulphurised flue gas.
The joint project, which has been running since January 2010, aims to convert CO2 into biomass or directly into secondary raw materials with the help of micro-organisms bred to explore innovative CO2 conversion and synthesis pathways. The ultimate aims of the project are to produce industrially-usable products. These are likely to include insulation and construction materials.
"Our pioneering work in the search for biotechnological CO2 conversion solutions bears first fruit," said Dr Johannes Heithoff, head of research and development at RWE Power. "We continue to lead the efforts to protect the climate."
The work is being carried out at the Coal Innovation Centre located at the Niederaussem power plant, which hopes to produce scaleable solutions to reducing emissions from coal-fired power stations. If such solutions can be found, the gypsum industry may find that desulphurisation of flue-gas moves into competition with the production of insulation materials or other chemicals.