Asbestos cement - Revision history

Designing Buildings at 10:37, 28 October 2020

2020-10-28T10:37:03Z

← Older revision		Revision as of 10:37, 28 October 2020
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	* Removing any debris.		* Removing any debris.
	* Cleaning equipment, surfaces and protective clothing that may have dust on them.		* Cleaning equipment, surfaces and protective clothing that may have dust on them.
		+
		+	[https://www.legislation.gov.uk/uksi/2012/632/regulation/2/made The Control of Asbestos Regulations 2012] suggests that “asbestos cement” means a material which is predominantly a mixture of cement and chrysotile and which when in a dry state absorbs less than 30% water by weight.

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

Editor at 16:56, 6 October 2020

2020-10-06T16:56:46Z

← Older revision		Revision as of 16:56, 6 October 2020
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	* Asbestos in construction.		* Asbestos in construction.
		+	* Asbestos management.
	* Asbestos register.		* Asbestos register.
	* Cement.		* Cement.
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	* Types of cement.		* Types of cement.

−	[[Category:Health_and_safety_/_CDM]] [[Category:Construction_techniques]] [[Category:Products_/_components~~]] [[Category:DCN_Product_Knowledge~~]]	+	[[Category:DCN_Product_Knowledge]] [[Category:Health_and_safety_/_CDM]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Designing Buildings at 13:57, 3 April 2020

2020-04-03T13:57:25Z

← Older revision		Revision as of 13:57, 3 April 2020
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	* Failure to mention asbestos.		* Failure to mention asbestos.
	* Fibre cement.		* Fibre cement.
		+	* Five signs you are at risk of asbestos poisoning at work.
	* The risk of asbestos on brownfield sites.		* The risk of asbestos on brownfield sites.
	* Types of cement.		* Types of cement.

−	[[Category:Health_and_safety_/_CDM]] [[Category:Construction_techniques]] [[Category:Products_/_components]]	+	[[Category:Health_and_safety_/_CDM]] [[Category:Construction_techniques]] [[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]

Designing Buildings at 14:00, 8 May 2019

2019-05-08T14:00:31Z

← Older revision		Revision as of 14:00, 8 May 2019
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	* Cleaning equipment, surfaces and protective clothing that may have dust on them.		* Cleaning equipment, surfaces and protective clothing that may have dust on them.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Asbestos in construction.		* Asbestos in construction.
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	* Fibre cement.		* Fibre cement.
	* The risk of asbestos on brownfield sites.		* The risk of asbestos on brownfield sites.
		+	* Types of cement.

	[[Category:Health_and_safety_/_CDM]] [[Category:Construction_techniques]] [[Category:Products_/_components]]		[[Category:Health_and_safety_/_CDM]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Designing Buildings at 08:33, 10 July 2018

2018-07-10T08:33:04Z

← Older revision		Revision as of 08:33, 10 July 2018
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−	Asbestos cement (AC), also known as ‘fibro’ or AC sheet, is a thin cement sheet or panel which is given rigidity by the ~~use~~ of asbestos fibres. Asbestos cement can be moulded into any shape that ordinary wet cement can, but typically, it is formed into flat or corrugated sheets or piping. AC is generally grey or brown in appearance and has a coarse texture.	+	Asbestos cement (AC), also known as ‘fibro’ or AC sheet, is a thin cement sheet or panel which is given rigidity by the inclusion of asbestos fibres. Asbestos cement can be moulded into any shape that ordinary wet cement can, but typically, it is formed into flat or corrugated sheets or piping. AC is generally grey or brown in appearance and has a coarse texture.

−	~~As a modern construction material,~~ AC became popular during and post-World War II as a means of building inexpensive structures. It was also promoted as a fire-resistant alternative to more common roofing materials such as asphalt as well as an affordable alternative to timber shingles, brick, slate, stone~~, and so on~~. Today, AC is commonly found in the roofs and walls of old sheds, garages or in soffits beneath eaves.	+	AC became popular during and post-World War II as a means of building inexpensive structures. It was also promoted as a fire-resistant alternative to more common roofing materials such as asphalt as well as an affordable alternative to timber shingles, brick, slate and stone. Today, AC is commonly found in the roofs and walls of old sheds, garages or in soffits beneath eaves.

	The use of AC has been banned in several countries. This is because it contains asbestos and when it ages it releases tiny fibres into the air which can be inhaled in the lungs and may increase the risk of lung diseases.		The use of AC has been banned in several countries. This is because it contains asbestos and when it ages it releases tiny fibres into the air which can be inhaled in the lungs and may increase the risk of lung diseases.

−	Contractors for licensable asbestos removal are held on a list by the Health and Safety Executive (HSE). AC panels are a non-licensable asbestos product, which means they may be removed by non-licence holders but the work must be carried out in accordance with HSE requirements by suitably trained personnel ~~for the work~~.	+	Contractors for licensable asbestos removal are held on a list by the Health and Safety Executive (HSE). However, AC panels are a non-licensable asbestos product, which means they may be removed by non-licence holders but the work must be carried out in accordance with HSE requirements by suitably-trained personnel.

−	~~The removal of asbestos is undertaken under very controlled conditions.~~ The removal of AC panels is an exception, ~~since~~ the asbestos is in a bound matrix~~, and there is a low risk to public health. The relatively small proportion of asbestos (10-15%), as well as it being firmly bound by cement, means~~ that it is generally capable of remaining rigid without releasing ~~the~~ fibres into the air. Panels may be discoloured or cracked in places but this will not negatively affect their integrity and make them hazardous. AC panels can be found indoors, but as long as they are undamaged they do not need to be removed, but should be subject to regular checking, and can be sealed with paint or sealant.	+	The removal of AC panels is an exception, as the asbestos is in a bound matrix that is generally capable of remaining rigid without releasing fibres into the air. Panels may be discoloured or cracked in places but this will not negatively affect their integrity and make them hazardous. AC panels can be found indoors, but as long as they are undamaged they do not need to be removed, but should be subject to regular checking, and can be sealed with paint or sealant.

−	In the UK, there is no legal requirement to dispose of AC, but care should be taken not to damage the panels in ~~any~~ way that could generate dust, thereby releasing fibres. If homeowners require it, they can arrange a disposal of AC panels with the help of the local council.	+	In the UK, there is no legal requirement to dispose of AC, but care should be taken not to damage the panels in a way that could generate dust, thereby releasing fibres. If homeowners require it, they can arrange the disposal of AC panels with the help of the local council.

	Safe steps to take when removing AC sheets include:		Safe steps to take when removing AC sheets include:
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	* Avoiding the application of pressure to panels which could cause them to break.		* Avoiding the application of pressure to panels which could cause them to break.
	* Avoiding cutting, breaking or doing anything to panels which could generate dust.		* Avoiding cutting, breaking or doing anything to panels which could generate dust.
−	* ~~Lower~~ the panels carefully and ~~place~~ in strong polythene sacks sealed with tape.	+	* Lowering the panels carefully and placing them in strong polythene sacks sealed with tape.
−	* ~~The sacks should be clearly~~ labelled as containing AC.	+	* Clearly labelled the sacks as containing AC.
−	* ~~Any~~ debris ~~should be removed~~.	+	* Removing any debris.
−	* ~~Equipment and~~ surfaces that may have dust on them ~~should be cleaned, as should protective clothing~~.	+	* Cleaning equipment, surfaces and protective clothing that may have dust on them.

	= Find out more =		= Find out more =

Editor: Created page with "Asbestos cement (AC), also known as ‘fibro’ or AC sheet, is a thin cement sheet or panel which is given rigidity by the use of asbestos fibres. Asbestos cement can be moulded..."

2018-04-23T17:28:43Z

Created page with "Asbestos cement (AC), also known as ‘fibro’ or AC sheet, is a thin cement sheet or panel which is given rigidity by the use of asbestos fibres. Asbestos cement can be moulded..."

New page

Asbestos cement (AC), also known as ‘fibro’ or AC sheet, is a thin cement sheet or panel which is given rigidity by the use of asbestos fibres. Asbestos cement can be moulded into any shape that ordinary wet cement can, but typically, it is formed into flat or corrugated sheets or piping. AC is generally grey or brown in appearance and has a coarse texture.

As a modern construction material, AC became popular during and post-World War II as a means of building inexpensive structures. It was also promoted as a fire-resistant alternative to more common roofing materials such as asphalt as well as an affordable alternative to timber shingles, brick, slate, stone, and so on. Today, AC is commonly found in the roofs and walls of old sheds, garages or in soffits beneath eaves.

The use of AC has been banned in several countries. This is because it contains asbestos and when it ages it releases tiny fibres into the air which can be inhaled in the lungs and may increase the risk of lung diseases.

Contractors for licensable asbestos removal are held on a list by the Health and Safety Executive (HSE). AC panels are a non-licensable asbestos product, which means they may be removed by non-licence holders but the work must be carried out in accordance with HSE requirements by suitably trained personnel for the work.

The removal of asbestos is undertaken under very controlled conditions. The removal of AC panels is an exception, since the asbestos is in a bound matrix, and there is a low risk to public health. The relatively small proportion of asbestos (10-15%), as well as it being firmly bound by cement, means that it is generally capable of remaining rigid without releasing the fibres into the air. Panels may be discoloured or cracked in places but this will not negatively affect their integrity and make them hazardous. AC panels can be found indoors, but as long as they are undamaged they do not need to be removed, but should be subject to regular checking, and can be sealed with paint or sealant.

In the UK, there is no legal requirement to dispose of AC, but care should be taken not to damage the panels in any way that could generate dust, thereby releasing fibres. If homeowners require it, they can arrange a disposal of AC panels with the help of the local council.

Safe steps to take when removing AC sheets include:

* Using a water sprayer to dampen the area around bolts and fasteners and reduce dust.
* Avoiding the application of pressure to panels which could cause them to break.
* Avoiding cutting, breaking or doing anything to panels which could generate dust.
* Lower the panels carefully and place in strong polythene sacks sealed with tape.
* The sacks should be clearly labelled as containing AC.
* Any debris should be removed.
* Equipment and surfaces that may have dust on them should be cleaned, as should protective clothing.

= Find out more =

=== Related articles on Designing Buildings Wiki ===

* Asbestos in construction.
* Asbestos register.
* Cement.
* Construction dust.
* Deleterious materials.
* Failure to mention asbestos.
* Fibre cement.
* The risk of asbestos on brownfield sites.

[[Category:Health_and_safety_/_CDM]] [[Category:Construction_techniques]] [[Category:Products_/_components]]