Asbestos Cement - Wikipedia Asbestos Cement
A pre-WW2 residence inside Darwin. The roof is sheeted in the company of corrugated fibro sheets and the walls in the company of level fibro sheeting, in the company of fibro battens cover the joints.
Example of asbestos mortar siding and lining on a post-war temporary residence inside Yardley. Nearly 40,000 of these structures were built among 1946 and 1949 to residence families.
Asbestos cement, genericized as fibro or fibrolite - short for "fibrous (or fibre) cement sheet" - and AC sheet, is a structure substance inside which asbestos fibres are used to reinforce narrow rigid mortar sheets.[1]
The substance rose to necessity during World War II to make sturdy, inexpensive military housing, and continued to be present used as an affordable substitute for numerous roofing products following the war.[2] Advertised as a fireproof alternative to other roofing materials such as asphalt, asbestos-cement roofs were well-liked not only for safety yet also for affordability.[3] Due to asbestos-cement’s imitation of more expensive materials such as planks siding and shingles, brick, slate, and stone, the goods was marketed as an affordable renovation material. Asbestos-cement faced competition in the company of the aluminum alloy, available inside large quantities after WWII, and the reemergence of planks clapboard and vinyl siding inside the mid to late twentieth century.
Asbestos-cement is usually formed into level or corrugated sheets or piping, yet can be present molded into any form damp mortar can fit. In Europe, numerous forms were historically used for mortar sheets, while the US leaned more conservative inside substance shapes due to labor and production costs. Although fibro was used inside a number of countries, it was inside Australia and New Zealand where its use was the nearly all widespread. Predominantly manufactured and sold via James Hardie & Co. until the mid-1980s, fibro inside all its forms was a very well-liked structure material, largely due to its durability. The reinforcing fibres involved inside construction were almost always asbestos.
StateLibQld 2 152895 James Hardie and Wunderlich float ready for the Victory Day parade inside Brisbane, 1946
The use of fibro that contains asbestos has been banned inside some countries, with Australia. As recently as 2016, the substance has been discovered inside recent components sold for construction projects.[4]
Health effects[edit]
When exposed to weather and erosion elements, such as inside roofs, the surface corrosion of asbestos mortar can be present a source of airborne poisonous fibres.[5] Asbestos is straight related to a number of life-threatening diseases including, asbestosis, pleural mesothelioma (lung) and peritoneal mesothelioma (abdomen). Fibre cement bedding is still freely available, yet the reinforcing fibres are now cellulose rather than asbestos.[6] However the nickname "fibro" is still applied to it for old-fashioned reasons.
Products used inside the structure industry[edit]
Roof sheeting, known as Hardies "Super Six."
- Roofs- typically on business or farmyard buildings.
- Flat sheets for residence walls and ceilings were usually 6 mm and 4.5 mm thick, inside 900 and 1200 widths and from 1800 to 3000 long.
- Battens 50 mm wide × 8 mm thick used to cover up the joints inside fibro sheets.
- "Super Six" corrugated roof sheeting and fencing.
- Internal damp region sheeting, "Tilux"
- Pipes of various sizes for water reticulation and drainage. Drainage pipes tend to be present made of pitch fibre, in the company of asbestos mortar added to strengthen.[7]
- Moulded products ranging from plant pots to outdoor telephone cabinet roofs and cable pits.
Cleaning of asbestos cement[edit]
Some Australian states, such as Queensland, prohibit the cleaning of fibro in the company of pressure washers, because it can spread the embedded asbestos fibres over a wide area. Safer cleaning methods involve using a fungicide and a sealant.[8]
In well-liked culture[edit]
In the James Blundell & James Reyne ballad "Way Out West", there is a note to a fibro mortar house, in the company of the earliest Dingoes' variety of the ballad having a note to a residence of fibre cement. Fibro is also mentioned some times on the Australian TV show Housos.
See also[edit]
References[edit]
- ^ B.A.Group - Glossary Archived August 19, 2006, at the Wayback Machine
- ^ McLaughlin, Robert W. and Henry A. Jandl. "Asbestos Cement: A Basic Building Material." Princeton University School of Architecture. Princeton, New Jersey, (1959).
- ^ "APT - Attitudes Towards Asphalt Roofing" (PDF). Docuri.com. Retrieved 7 September 2018.
- ^ Asbestos found inside $1.2b Perth Children's Hospital, says WA Health Minister, ABC News, 14 July 2016, retrieved 3 October 2016
- ^ Campopiano, A.; Ramires, D.; Zakrzewska, A. M.; Ferri, R.; D'annibale, A.; Pizzutelli, G. (2 June 2009). "Risk Assessment of the Decay of Asbestos Cement Roofs". Annals of Occupational Hygiene. 53 (6): 627–638. doi:10.1093/annhyg/mep036. PMID 19491148. Retrieved 7 September 2018.
- ^ "Fibre Cement". Consumer Build. Archived from the original on 2006-10-10. Retrieved 2012-06-05.
- ^ "Where can you discover asbestos? Asbestos cement". Hse.gov.uk. Retrieved 7 September 2018.
- ^ "Water Blasters" (PDF). Queensland Government. Retrieved 2016-01-31.
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