Concrete in aggressive ground (SD 1) - Revision history

Designing Buildings at 09:11, 6 November 2020

2020-11-06T09:11:49Z

← Older revision		Revision as of 09:11, 6 November 2020
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	* The properties of concrete.		* The properties of concrete.

−	[[Category:~~Publications_/_reports~~]] [[Category:~~Research_/_Innovation~~]] [[Category:DCN_Research,_Development_and_Innovation]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Report]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:Publications_/_reports]] [[Category:Research_/_Innovation]]

Designing Buildings at 09:39, 11 June 2017

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Designing Buildings at 09:36, 11 June 2017

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	On 12 June 2005, BRE published, [https://www.brebookshop.com/details.jsp?id=50351 Concrete in aggressive ground (SD 1)], written by the BRE Construction Division.		On 12 June 2005, BRE published, [https://www.brebookshop.com/details.jsp?id=50351 Concrete in aggressive ground (SD 1)], written by the BRE Construction Division.
		+
		+	[[File:Concrete in aggresive ground.jpg\|link=https://www.brebookshop.com/details.jsp?id=189849]]

	Chemical agents found in the ground can destroy concrete. In the UK, these agents are most commonly sulfates and acids that occur naturally in soil and groundwater, and can cause expansion and softening of concrete. Other substances, most resulting from human activity, are aggressive but present less of a problem as they only rarely come into contact with concrete.		Chemical agents found in the ground can destroy concrete. In the UK, these agents are most commonly sulfates and acids that occur naturally in soil and groundwater, and can cause expansion and softening of concrete. Other substances, most resulting from human activity, are aggressive but present less of a problem as they only rarely come into contact with concrete.
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	* Alkali-aggregate reaction (AAR).		* Alkali-aggregate reaction (AAR).
	* Architectural concrete.		* Architectural concrete.
		+	* BRE articles on Designing Buildings Wiki.
	* Brownfield land.		* Brownfield land.
		+	* Building Research Establishment.
	* Cellular concrete.		* Cellular concrete.
	* Concrete.		* Concrete.

Designing Buildings at 09:33, 11 June 2017

2017-06-11T09:33:35Z

← Older revision		Revision as of 09:33, 11 June 2017
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	* Part E: Gives recommendations for specifying surface carbonated precast concrete for general use.		* Part E: Gives recommendations for specifying surface carbonated precast concrete for general use.
	* Part F: Includes design guides for the specification of precast concrete products, including; pipeline systems, box culverts and segmental linings for tunnels and shafts.		* Part F: Includes design guides for the specification of precast concrete products, including; pipeline systems, box culverts and segmental linings for tunnels and shafts.
		+
		+	--[[User:BRE_Group\|BRE Group]]
		+
		+	= Find out more =
		+
		+	=== Related articles on Designing Buildings Wiki. ===
		+
		+	* Alkali-activated binder.
		+	* Alkali-aggregate reaction (AAR).
		+	* Architectural concrete.
		+	* Brownfield land.
		+	* Cellular concrete.
		+	* Concrete.
		+	* Concrete-steel composite structures.
		+	* Concrete repair mortars.
		+	* Concrete superplasticizer.
		+	* Concreting plant.
		+	* Contaminated land.
		+	* Efflorescence.
		+	* Formwork.
		+	* Ground investigation.
		+	* Hempcrete.
		+	* Precast concrete.
		+	* Prestressed concrete.
		+	* Reinforced concrete.
		+	* Self-compacting concrete.
		+	* Testing concrete.
		+	* The properties of concrete.

	[[Category:Publications_/_reports]] [[Category:Research_/_Innovation]]		[[Category:Publications_/_reports]] [[Category:Research_/_Innovation]]

Designing Buildings: Created page with "BRE (Building Research Establishment) is an independent, research-based consultancy, testing and training organisation, operating in the built environment and associated industri..."

2017-06-11T09:30:52Z

Created page with "BRE (Building Research Establishment) is an independent, research-based consultancy, testing and training organisation, operating in the built environment and associated industri..."

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BRE (Building Research Establishment) is an independent, research-based consultancy, testing and training organisation, operating in the built environment and associated industries.

On 12 June 2005, BRE published, [https://www.brebookshop.com/details.jsp?id=50351 Concrete in aggressive ground (SD 1)], written by the BRE Construction Division.

Chemical agents found in the ground can destroy concrete. In the UK, these agents are most commonly sulfates and acids that occur naturally in soil and groundwater, and can cause expansion and softening of concrete. Other substances, most resulting from human activity, are aggressive but present less of a problem as they only rarely come into contact with concrete.

The 2005 edition of BRE Special Digest 1 (SD1:2005) simplifies, updates and consolidates Parts 1 to 4 of the previous edition published in 2003. It has been revised to reflect new thinking and changes to British Standards, including:

* A new ranking of cements in relation to sulfate resistance.
* Removal of the aggregate carbonate range
* Revision of sulfate class limits.
* Simpler requirements for additional protective measures.

It provides guidance on the specification of concrete for installation in natural ground and brownfield sites. The procedures for ground assessment and concrete specification cover the common occurrence of sulfates, sulfides and acids as well as the more rarely occurring aggressive carbon dioxide found in some ground and surface waters.

It is intended to provide practical guidance for ground specialists as well as specification advise for concrete designers, specifiers and producers.

It is presented in 6 parts:

* Part A: Introduces the phenomenon of chemical attack of concrete in the ground.
* Part B: Describes modes of chemical attack and discusses the mechanisms of the principal types.
* Part C: Deals with assessment of the chemical aggressiveness of the ground.
* Part D: Gives recommendations for the specification of concrete for general cast-in-situ use.
* Part E: Gives recommendations for specifying surface carbonated precast concrete for general use.
* Part F: Includes design guides for the specification of precast concrete products, including; pipeline systems, box culverts and segmental linings for tunnels and shafts.

[[Category:Publications_/_reports]] [[Category:Research_/_Innovation]]

← Older revision		Revision as of 09:39, 11 June 2017
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	On 12 June 2005, BRE published, [https://www.brebookshop.com/details.jsp?id=50351 Concrete in aggressive ground (SD 1)], written by the BRE Construction Division.		On 12 June 2005, BRE published, [https://www.brebookshop.com/details.jsp?id=50351 Concrete in aggressive ground (SD 1)], written by the BRE Construction Division.

−	[[File:~~Concrete in aggresive ground~~.jpg\|link=https://www.brebookshop.com/details.jsp?id=189849]]	+	[[File:Concrete_in_aggresive_ground.jpg\|link=https://www.brebookshop.com/details.jsp?id=189849]]

−	Chemical agents found in the ground can destroy concrete. In the UK, these agents are most commonly sulfates and acids that occur naturally in soil and groundwater, and can cause expansion and softening of concrete. Other substances, most resulting from human activity, ~~are~~ aggressive but present less of a problem as they only rarely come into contact with concrete.	+	Chemical agents found in the ground can destroy concrete. In the UK, these agents are most commonly sulfates and acids that occur naturally in soil and groundwater, and can cause the expansion and softening of concrete. Other substances, most resulting from human activity, can be aggressive but present less of a problem as they only rarely come into contact with concrete.

−	The 2005 edition of BRE Special Digest 1 (SD1:2005) simplifies, updates and consolidates Parts 1 to 4 of the previous edition published in 2003. It ~~has been~~ revised to reflect new thinking and changes to British Standards, including:	+	The 2005 edition of BRE Special Digest 1 (SD1:2005) simplifies, updates and consolidates Parts 1 to 4 of the previous edition published in 2003. It was revised to reflect new thinking and changes to the British Standards, including:

	* A new ranking of cements in relation to sulfate resistance.		* A new ranking of cements in relation to sulfate resistance.
−	* Removal of the aggregate carbonate range	+	* Removal of the aggregate carbonate range.
	* Revision of sulfate class limits.		* Revision of sulfate class limits.
	* Simpler requirements for additional protective measures.		* Simpler requirements for additional protective measures.

−	It provides guidance on the specification of concrete for installation in natural ground and brownfield sites. The procedures for ground assessment and concrete specification cover the common occurrence of sulfates, sulfides and acids as well as the more rarely occurring aggressive carbon dioxide found in some ground and surface waters.	+	It provides guidance on the specification of concrete for installation in natural ground and brownfield sites. The procedures for ground assessment and concrete specification cover the common occurrence of sulfates, sulfides and acids as well as the more rarely occurring aggressive carbon dioxide found in some ground and surface waters. It is intended to provide practical guidance for ground specialists as well as specification advise for concrete designers, specifiers and producers.
−		+
−	It is intended to provide practical guidance for ground specialists as well as specification advise for concrete designers, specifiers and producers.	+

	It is presented in 6 parts:		It is presented in 6 parts:

−	* Part A: Introduces the ~~phenomenon of~~ chemical attack of concrete in the ground.	+	* Part A: Introduces the chemical attack of concrete in the ground.
−	* Part B: Describes modes of chemical attack and discusses ~~the mechanisms of~~ the principal types.	+	* Part B: Describes modes of chemical attack and discusses the principal types.
−	* Part C: Deals with assessment of the chemical aggressiveness of the ground.	+	* Part C: Deals with the assessment of the chemical aggressiveness of the ground.
	* Part D: Gives recommendations for the specification of concrete for general cast-in-situ use.		* Part D: Gives recommendations for the specification of concrete for general cast-in-situ use.
	* Part E: Gives recommendations for specifying surface carbonated precast concrete for general use.		* Part E: Gives recommendations for specifying surface carbonated precast concrete for general use.
−	* Part F: Includes design guides for the specification of precast concrete products~~, including; pipeline systems, box culverts and segmental linings for tunnels and shafts~~.	+	* Part F: Includes design guides for the specification of precast concrete products.

	--[[User:BRE_Group\|BRE Group]]		--[[User:BRE_Group\|BRE Group]]
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	* The properties of concrete.		* The properties of concrete.

−	[[Category:Publications_/_reports]] [[Category:Research_/_Innovation]]	+	[[Category:Publications_/_reports]] [[Category:Research_/_Innovation]] [[Category:DCN_Research,_Development_and_Innovation]]