Carbide meter - Revision history

Designing Buildings at 10:32, 23 March 2021

2021-03-23T10:32:35Z

← Older revision		Revision as of 10:32, 23 March 2021
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	* Assessing moisture in porous building materials.		* Assessing moisture in porous building materials.
		+	* Calcium carbide.
	* Damp in buildings.		* Damp in buildings.
	* Electrical resistance meters.		* Electrical resistance meters.

Editor at 19:06, 26 October 2020

2020-10-26T19:06:52Z

← Older revision		Revision as of 19:06, 26 October 2020
Line 13:		Line 13:
	* Assessing moisture in porous building materials.		* Assessing moisture in porous building materials.
	* Damp in buildings.		* Damp in buildings.
		+	* Electrical resistance meters.
	* Methodology for moisture investigations in traditional buildings.		* Methodology for moisture investigations in traditional buildings.
	* Penetrating damp in buildings.		* Penetrating damp in buildings.

Designing Buildings at 06:48, 19 October 2020

2020-10-19T06:48:15Z

← Older revision		Revision as of 06:48, 19 October 2020
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−	When identifying damp in buildings, architects, surveyors ~~and project managers~~ may use moisture meters to confirm ~~the observed~~ diagnosis. In skilled hands with regular site calibration, moisture meters can be a good starting point.	+	When identifying damp in buildings, architects, surveyors etc may use moisture meters to confirm or obtain a diagnosis. In skilled hands with regular site calibration, moisture meters can be a good starting point.

−	Carbide meters are one method of measuring moisture content. This technique (sometimes referred to as Speedy Carbide Test after the manufacturer’s name) works by testing a weighed sample of drilled mansory that been taken from a mortar joint located above the damp proof course. This sample is then placed in a container. A measured amount of calcium carbide powder is placed in a separate portion of the container, and then the container is sealed. The container is shaken and the two substances mix together to trigger a reaction that produces acetylene gas if moisture is present.	+	Carbide meters are one method of measuring moisture content. This technique (sometimes referred to as Speedy Carbide Test after the manufacturer’s name) works by testing a weighed sample of drilled mansory that has been taken from a sample area such as a mortar joint located above the damp proof course. This sample is then placed in a container. A measured amount of calcium carbide powder is placed in a separate portion of the container, and then the container is sealed. The container is shaken and the two substances mix together to trigger a reaction that produces acetylene gas if moisture is present.

	The meter will indicate the results of the test. Readings will range from 0 to 5, with a higher number indicating a higher level of moisture.		The meter will indicate the results of the test. Readings will range from 0 to 5, with a higher number indicating a higher level of moisture.

−	Carbide meters are likely to give a more accurate measure of moisture content, although they require the removal of a sample~~. Due to this factor~~ - which could be considered by some as destructive - this method of testing may only be advisable after an electronic meter has indicated the presence of moisture.	+	Carbide meters are likely to give a more accurate measure of moisture content than some other techniques, although they require the removal of a sample - which could be considered by some as destructive. As a result, this method of testing may only be advisable after an electronic meter, or some other method has indicated the presence of moisture.
		+
		+	For more information see: Assessing moisture in porous building materials.

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

Editor at 17:24, 16 October 2020

2020-10-16T17:24:09Z

← Older revision		Revision as of 17:24, 16 October 2020
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	* Assessing moisture in porous building materials.		* Assessing moisture in porous building materials.
−	* Damp in buildings	+	* Damp in buildings.
−	* Penetrating damp in buildings	+	* Methodology for moisture investigations in traditional buildings.
−	* Rising damp	+	* Penetrating damp in buildings.
−	* Rising damp in walls - diagnosis and treatment (DG 245)	+	* Rising damp.
		+	* Rising damp in walls - diagnosis and treatment (DG 245).

	[[Category:DCN_Product_Knowledge]] [[Category:Roles_/_services]]		[[Category:DCN_Product_Knowledge]] [[Category:Roles_/_services]]

Editor at 17:22, 16 October 2020

2020-10-16T17:22:59Z

← Older revision		Revision as of 17:22, 16 October 2020
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	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

		+	* Assessing moisture in porous building materials.
	* Damp in buildings		* Damp in buildings
	* Penetrating damp in buildings		* Penetrating damp in buildings

Editor at 17:19, 16 October 2020

2020-10-16T17:19:34Z

← Older revision		Revision as of 17:19, 16 October 2020
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	When identifying damp in buildings, architects, surveyors and project managers may use moisture meters to confirm the observed diagnosis. In skilled hands with regular site calibration, moisture meters can be a good starting point.		When identifying damp in buildings, architects, surveyors and project managers may use moisture meters to confirm the observed diagnosis. In skilled hands with regular site calibration, moisture meters can be a good starting point.

−	Carbide meters are one method of measuring moisture content. This technique (sometimes referred to as Speedy Carbide Test after the manufacturer’s name) works by testing a weighed sample of drilled mansory ~~(ideally~~ taken from a mortar joint located above the damp proof course~~) that~~ is then placed in a container. A measured amount of calcium carbide powder is ~~then~~ placed in a separate portion of the container, and then the container is sealed. The container is shaken and the two substances ~~will react~~ to ~~produce~~ acetylene gas if moisture is present.~~<br />~~	+	Carbide meters are one method of measuring moisture content. This technique (sometimes referred to as Speedy Carbide Test after the manufacturer’s name) works by testing a weighed sample of drilled mansory that been taken from a mortar joint located above the damp proof course. This sample is then placed in a container. A measured amount of calcium carbide powder is placed in a separate portion of the container, and then the container is sealed. The container is shaken and the two substances mix together to trigger a reaction that produces acetylene gas if moisture is present.
−		+

	The meter will indicate the results of the test. Readings will range from 0 to 5, with a higher number indicating a higher level of moisture.		The meter will indicate the results of the test. Readings will range from 0 to 5, with a higher number indicating a higher level of moisture.

−	Carbide meters are likely to give a more accurate measure of moisture content, although they require the removal of a sample. Due to this factor - which ~~may~~ be considered by some as destructive - it may only be advisable after an electronic meter has indicated the presence of moisture.	+	Carbide meters are likely to give a more accurate measure of moisture content, although they require the removal of a sample. Due to this factor - which could be considered by some as destructive - this method of testing may only be advisable after an electronic meter has indicated the presence of moisture.

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

Editor: Created page with "When identifying damp in buildings, architects, surveyors and project managers may use moisture meters to confirm the observed diagnosis. In skilled hands with regular site calib..."

2020-10-16T17:11:43Z

Created page with "When identifying damp in buildings, architects, surveyors and project managers may use moisture meters to confirm the observed diagnosis. In skilled hands with regular site calib..."

New page

When identifying damp in buildings, architects, surveyors and project managers may use moisture meters to confirm the observed diagnosis. In skilled hands with regular site calibration, moisture meters can be a good starting point.

Carbide meters are one method of measuring moisture content. This technique (sometimes referred to as Speedy Carbide Test after the manufacturer’s name) works by testing a weighed sample of drilled mansory (ideally taken from a mortar joint located above the damp proof course) that is then placed in a container. A measured amount of calcium carbide powder is then placed in a separate portion of the container, and then the container is sealed. The container is shaken and the two substances will react to produce acetylene gas if moisture is present.<br />

The meter will indicate the results of the test. Readings will range from 0 to 5, with a higher number indicating a higher level of moisture.

Carbide meters are likely to give a more accurate measure of moisture content, although they require the removal of a sample. Due to this factor - which may be considered by some as destructive - it may only be advisable after an electronic meter has indicated the presence of moisture.

= Related articles on Designing Buildings Wiki =

* Damp in buildings
* Penetrating damp in buildings
* Rising damp
* Rising damp in walls - diagnosis and treatment (DG 245)

[[Category:DCN_Product_Knowledge]] [[Category:Roles_/_services]]