Rammed Earth: Difference between revisions
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[[File:Tamp RammedEarth.jpg|500px|thumb|right|(A) Picture showing manual ramming of earth in metallic shutters. This technique is quite labor intensive (photo taken in Sinai, Egypt). (B) Pneumatic tamper.]] | [[File:Tamp RammedEarth.jpg|500px|thumb|right|(A) Picture showing manual ramming of earth in metallic shutters. This technique is quite labor intensive (photo taken in Sinai, Egypt). (B) Pneumatic tamper.]] | ||
=Basics= | |||
*Rammed Earth is an ancient building method that has seen a revival in recent years | |||
*It produces noncombustible, thermally massive, strong, and durable buildings | |||
*However, walls can be labour-intensive to construct without machinery (powered tampers) | |||
*Structures are susceptible to water damage if not adequately protected or maintained. | |||
*Building a rammed-earth wall involves compressing a damp mixture of earth that has suitable proportions of sand, gravel and clay (sometimes with an added stabilizer (like with [[Stabalized CEBs]] ) into an externally supported frame or mould. The construction of an entire wall begins with a temporary frame, or formwork, similar to concrete | |||
* '''Essentially''' : | |||
**CEB is to Bricks/Concrete Blocks as | |||
**Rammed Earth is to Concrete | |||
=Open Source Hardware Needs= | |||
* powered (pneumatic) tamper; this may require an air compressor | * powered (pneumatic) tamper; this may require an air compressor | ||
* temporary frame, i.e. formwork (usually wood, plywood, steel) | * temporary frame, i.e. formwork (usually wood, plywood, steel) | ||
* equipment for excavating subsoil, e.g. backhoe | |||
= | =Internal Links= | ||
* [[Lime]] may be used as a stabilizer, and in fact historically a lot of rammed earth construction has used lime | * [[Lime]] may be used as a stabilizer, and in fact historically a lot of rammed earth construction has used lime | ||
* [[Lime]] plaster as an external covering for protection | * [[Lime]] plaster as an external covering for protection | ||
| Line 17: | Line 24: | ||
* Reinforcement: [[hemp]] fibers, [[bamboo]], [[steel]], perhaps [[basalt fibers]] (unclear if this has been tried, but should work well) | * Reinforcement: [[hemp]] fibers, [[bamboo]], [[steel]], perhaps [[basalt fibers]] (unclear if this has been tried, but should work well) | ||
* with proper subsoil composition, the principles of [[geopolymers]] may be applied | * with proper subsoil composition, the principles of [[geopolymers]] may be applied | ||
* [[$32k Rammed Earth House in India]] | |||
= | =External Links= | ||
*[https://en.wikipedia.org/wiki/Rammed_earth Rammed earth] | |||
* Nice overview - [http://webs.ashlandctc.org/jnapora/hum-faculty/syllabi/trad.html] | * Nice overview - [http://webs.ashlandctc.org/jnapora/hum-faculty/syllabi/trad.html] | ||
*[https://semmesco.com/our-methods/pise-rammed-earth/ A Page on this by " Semmes & Co. Builders, Inc" ] | |||
Latest revision as of 16:54, 12 September 2022
Basics
- Rammed Earth is an ancient building method that has seen a revival in recent years
- It produces noncombustible, thermally massive, strong, and durable buildings
- However, walls can be labour-intensive to construct without machinery (powered tampers)
- Structures are susceptible to water damage if not adequately protected or maintained.
- Building a rammed-earth wall involves compressing a damp mixture of earth that has suitable proportions of sand, gravel and clay (sometimes with an added stabilizer (like with Stabalized CEBs ) into an externally supported frame or mould. The construction of an entire wall begins with a temporary frame, or formwork, similar to concrete
- Essentially :
- CEB is to Bricks/Concrete Blocks as
- Rammed Earth is to Concrete
Open Source Hardware Needs
- powered (pneumatic) tamper; this may require an air compressor
- temporary frame, i.e. formwork (usually wood, plywood, steel)
- equipment for excavating subsoil, e.g. backhoe
Internal Links
- Lime may be used as a stabilizer, and in fact historically a lot of rammed earth construction has used lime
- Lime plaster as an external covering for protection
- Earthco Megablock - not actually rammed earth but a somewhat related technique
- Reinforcement: hemp fibers, bamboo, steel, perhaps basalt fibers (unclear if this has been tried, but should work well)
- with proper subsoil composition, the principles of geopolymers may be applied
- $32k Rammed Earth House in India
External Links
- Rammed earth
- Nice overview - [1]
- A Page on this by " Semmes & Co. Builders, Inc"