Geotextiles - Revision history

Designing Buildings at 08:33, 28 June 2023

2023-06-28T08:33:38Z

← Older revision		Revision as of 08:33, 28 June 2023
Line 41:		Line 41:
	In combination with steel wire fencing, geotextiles can be used to contain explosive debris during building demolitions.		In combination with steel wire fencing, geotextiles can be used to contain explosive debris during building demolitions.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	NB [https://www.historicenvironment.scot/archives-and-research/publications/publication/?publicationId=47c9f2eb-1ade-4a76-a775-add0008972f3 Guide to energy retrofit of traditional buildings], published by Historic Environment Scotland in November 2021, defines geotextiles as: ‘…moisture vapour permeable artificial fabrics.’
		+
		+	= Related articles on Designing Buildings =

	* Coastal defences.		* Coastal defences.

Editor at 19:06, 16 November 2020

2020-11-16T19:06:04Z

← Older revision		Revision as of 19:06, 16 November 2020
Line 46:		Line 46:
	* Construction materials.		* Construction materials.
	* Geomembrane.		* Geomembrane.
		+	* Glass bottle floor foundation.
	* Ground conditions.		* Ground conditions.
	* Groundwater control in urban areas.		* Groundwater control in urban areas.
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	* Underpinning.		* Underpinning.

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

Designing Buildings at 08:31, 12 August 2020

2020-08-12T08:31:14Z

← Older revision		Revision as of 08:31, 12 August 2020
Line 41:		Line 41:
	In combination with steel wire fencing, geotextiles can be used to contain explosive debris during building demolitions.		In combination with steel wire fencing, geotextiles can be used to contain explosive debris during building demolitions.

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

	* Coastal defences.		* Coastal defences.
	* Construction materials.		* Construction materials.
		+	* Geomembrane.
	* Ground conditions.		* Ground conditions.
	* Groundwater control in urban areas.		* Groundwater control in urban areas.
Line 55:		Line 54:
	* Underpinning.		* Underpinning.

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

Designing Buildings at 13:23, 14 November 2016

2016-11-14T13:23:30Z

← Older revision		Revision as of 13:23, 14 November 2016
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	= Introduction =		= Introduction =

−	Geotextiles are a ~~type~~ of ~~material made from synthetic fibres which can be used~~ for a ~~variety~~ of ~~purposes in construction~~. ~~The~~ fibres create a flexible and porous fabric ~~which is~~ capable of providing strength and stability ~~as required~~. ~~Geotextiles~~ are ~~usually made out of polyester or polypropylene and come in~~ three basic forms:	+	Geotextiles were originally developed in the 1950s for use in erosion control situations where soil retention and fabric strength was required, such as in sea walls. They are now used in a wide range of civil engineering applications, such as roads, embankments, retaining structures, airfields, railways, dams and reservoirs, canals, coastal defences, and so on. In addition, composite materials known as geosynthetics have been developed for products such as geogrids, geotubes and meshes, for a range of geoengineering applications.
		+
		+	Geotextiles are typically made using synthetic fibres such as polyester or polypropylene which create a flexible and porous fabric capable of providing strength and stability. There are three basic forms:

	* Woven: This resembles sacking.		* Woven: This resembles sacking.
	* Needle-punched: This resembles felt.		* Needle-punched: This resembles felt.
	* Heat-bonded: This resembles ironed felt.		* Heat-bonded: This resembles ironed felt.
−
−	Geotextiles were originally developed in the 1950s as an alternative to granular soil filters. They were used in erosion control situations where sufficient soil retention and fabric strength was required, such as with concrete sea walls.
−
−	Geotextiles are often used for many civil engineering applications, such as roads, embankments, retaining structures, airfields, railways, dams and reservoirs, canals, coastal defences, and so on. Composite materials known as geosynthetics have been developed for products such as geogrids, geotubes and meshes, for a range of geoengineering applications.

	= Uses of geotextiles =		= Uses of geotextiles =

−	Geotextiles have the ability to reinforce, protect, filter, drain and separate, and many applications ~~often~~ use them alongside soil, placed at the tension surface for strength purposes.	+	Geotextiles have the ability to reinforce, protect, filter, drain and separate, and many applications use them alongside soil, placed at the tension surface for strength purposes.

−	The main uses of geotextiles include ~~the following~~:	+	The main uses of geotextiles include:

	=== Separation ===		=== Separation ===

−	Geotextiles can be used to prevent the mixing of two soil layers of different particle sizes, such as ~~landmill~~ material and native soil, or stone material and subgrade soil.	+	Geotextiles can be used to prevent the mixing of two soil layers of different particle sizes, such as landfill material and native soil, or stone material and subgrade soil.

	=== Stabilisation ===		=== Stabilisation ===

−	The geotextile acts as a separator, allowing water from soft natural soil to pass into a free-draining construction soil, which allows the natural soil to consolidate, thereby gaining strength and providing a more ~~adequate~~ surface for foundations.	+	The geotextile acts as a separator, allowing water from soft natural soil to pass into a free-draining construction soil, which allows the natural soil to consolidate, thereby gaining strength and providing a more suitable surface for foundations.

	=== Drainage ===		=== Drainage ===

−	Geotextiles can be used to enable transmissivity, ~~which is~~ where the flow of water runs parallel to the plane of the geotextile. Superfluous water can be collected and discharged efficiently ~~using geotextiles~~, particularly needle-punched non-woven materials. The characteristic of transmissivity can be optimised by using geotextiles of varying thicknesses.	+	Geotextiles can be used to enable transmissivity, where the flow of water runs parallel to the plane of the geotextile. Superfluous water can be collected and discharged efficiently, particularly by needle-punched non-woven materials. The characteristic of transmissivity can be optimised using geotextiles of varying thicknesses.

	=== Filtration ===		=== Filtration ===

−	Geotextiles, of a needle-punched structure, can be used to provide an interface for filtration of fine particles in soils. The structure of the geotextile enables fine particles to be retained while allowing water to pass through. As water passes through, soil is filtered out and builds up behind the geotextile, ~~developing~~ a natural soil filter.	+	Geotextiles, of a needle-punched structure, can be used to provide an interface for the filtration of fine particles in soils. The structure of the geotextile enables fine particles to be retained while allowing water to pass through. As water passes through, soil is filtered out and builds up behind the geotextile, creating a natural soil filter.

	=== Reinforcement ===		=== Reinforcement ===

−	Due to their high tensile strength and soil-fabric friction coefficient, heavy geotextiles ~~are often~~ used as a reinforcement solution, using fill materials to reinforce earth structures.	+	Due to their high tensile strength and soil-fabric friction coefficient, heavy geotextiles can be used as a reinforcement solution, using fill materials to reinforce earth structures. the geotextile is placed within the material, in the same way as with reinforced concrete. While stabilisation is achieved by allowing water to drain from unstable soil, reinforcement is provided for by the stress/strain characteristics of the geotextile which add strength to the whole system. This is as opposed to stabilisation, which places the geotextile on or around the required area.
−		+
−	~~To reinforce a steep slope the tension required for equilibrium and the appropriate geotextile reinforcement layout must be calculated for the geotextiles to be effective.~~	+
−		+
−	~~As opposed to stabilisation, which places the geotextile on or around the required area, in reinforcement,~~ the geotextile is placed within the material, in the same way as with reinforced concrete. While stabilisation is achieved by allowing water to drain from unstable soil, reinforcement is provided for by the stress/strain characteristics of the geotextile which add strength to the whole system.	+

	=== Protection ===		=== Protection ===

−	Geotextiles are used to protect earth embankments from ~~various forms of~~ erosion. Leaching of fine material can be prevented by placing geotextiles in layers. Sloped, stepped shapes are also effective in protecting shorelines from storm damage. They ~~become~~ impermeable when impregnated with an asphaltic emulsion, making them suitable for use as moisture barriers, ~~most often~~ in repair of pavements.	+	Geotextiles are used to protect earth embankments from erosion. Leaching of fine material can be prevented by placing geotextiles in layers. Sloped, stepped shapes are also effective in protecting shorelines from storm damage. They can be made impermeable when impregnated with an asphaltic emulsion, making them suitable for use as moisture barriers, for example, in the repair of pavements.

	In combination with steel wire fencing, geotextiles can be used to contain explosive debris during building demolitions.		In combination with steel wire fencing, geotextiles can be used to contain explosive debris during building demolitions.

Editor: Created page with "= Introduction = Geotextiles are a type of material made from synthetic fibres which can be used for a variety of purposes in construction. The fibres create a flexible and poro..."

2016-11-07T22:52:04Z

Created page with "= Introduction = Geotextiles are a type of material made from synthetic fibres which can be used for a variety of purposes in construction. The fibres create a flexible and poro..."

New page

= Introduction =

Geotextiles are a type of material made from synthetic fibres which can be used for a variety of purposes in construction. The fibres create a flexible and porous fabric which is capable of providing strength and stability as required. Geotextiles are usually made out of polyester or polypropylene and come in three basic forms:

* Woven: This resembles sacking.
* Needle-punched: This resembles felt.
* Heat-bonded: This resembles ironed felt.

Geotextiles were originally developed in the 1950s as an alternative to granular soil filters. They were used in erosion control situations where sufficient soil retention and fabric strength was required, such as with concrete sea walls.

Geotextiles are often used for many civil engineering applications, such as roads, embankments, retaining structures, airfields, railways, dams and reservoirs, canals, coastal defences, and so on. Composite materials known as geosynthetics have been developed for products such as geogrids, geotubes and meshes, for a range of geoengineering applications.

= Uses of geotextiles =

Geotextiles have the ability to reinforce, protect, filter, drain and separate, and many applications often use them alongside soil, placed at the tension surface for strength purposes.

The main uses of geotextiles include the following:

=== Separation ===

Geotextiles can be used to prevent the mixing of two soil layers of different particle sizes, such as landmill material and native soil, or stone material and subgrade soil.

=== Stabilisation ===

The geotextile acts as a separator, allowing water from soft natural soil to pass into a free-draining construction soil, which allows the natural soil to consolidate, thereby gaining strength and providing a more adequate surface for foundations.

=== Drainage ===

Geotextiles can be used to enable transmissivity, which is where the flow of water runs parallel to the plane of the geotextile. Superfluous water can be collected and discharged efficiently using geotextiles, particularly needle-punched non-woven materials. The characteristic of transmissivity can be optimised by using geotextiles of varying thicknesses.

=== Filtration ===

Geotextiles, of a needle-punched structure, can be used to provide an interface for filtration of fine particles in soils. The structure of the geotextile enables fine particles to be retained while allowing water to pass through. As water passes through, soil is filtered out and builds up behind the geotextile, developing a natural soil filter.

=== Reinforcement ===

Due to their high tensile strength and soil-fabric friction coefficient, heavy geotextiles are often used as a reinforcement solution, using fill materials to reinforce earth structures.

To reinforce a steep slope the tension required for equilibrium and the appropriate geotextile reinforcement layout must be calculated for the geotextiles to be effective.

As opposed to stabilisation, which places the geotextile on or around the required area, in reinforcement, the geotextile is placed within the material, in the same way as with reinforced concrete. While stabilisation is achieved by allowing water to drain from unstable soil, reinforcement is provided for by the stress/strain characteristics of the geotextile which add strength to the whole system.

=== Protection ===

Geotextiles are used to protect earth embankments from various forms of erosion. Leaching of fine material can be prevented by placing geotextiles in layers. Sloped, stepped shapes are also effective in protecting shorelines from storm damage. They become impermeable when impregnated with an asphaltic emulsion, making them suitable for use as moisture barriers, most often in repair of pavements.

In combination with steel wire fencing, geotextiles can be used to contain explosive debris during building demolitions.

= Find out more =

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

* Coastal defences.
* Construction materials.
* Ground conditions.
* Groundwater control in urban areas.
* Groundworks.
* Rebar.
* Reinforced concrete.
* Retaining walls.
* Underpinning.

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