ADOBE

Adobe means mud brick (from Arabic) and it is a building material made from earth and often organic material. Most Adobe buildings are similar to cob and rammed earth buildings. Adobe is among the earliest materials used throughout the world.

In dry climates, adobe structures are extremely durable, and account for some of the oldest existing buildings in the world. Adobe buildings offer significant advantages due to their greater thermal mass, but they are known to be particularly susceptible to earthquake damage if they are not somehow reinforced.

Adobe reinforced with natural fiber - Degache - TUNISIA (March 2007). Once dried, the reinforced adobe becomes stronger.

The mortar to make adobes is composed of sand (70%) and clay (30%) - Degache (March 2007).


It is possible to use the same ground foundations to make the adobes provided it has a composition close to normal (70% sand and 30% clay) - Degache (March 2007).

To see if a soil is suitable for making the adobes, just shake a handful of dirt in a glass of water and let it settle for a few hours. Then with a simple ruler you can measure the layers and make the proportion. The error is very small and the result is technically correct.

The mortar that attaches to the trowel is too fat so it is not good to make adobes. Degache (March 2007).

The normal mortar leaves a mere trace on the trowel and it is good to make adobes. Degache (March 2007).

The forming of adobe was effected by simple wooden forms. The dimensions are 25 x 12 x 5.5 cm - Degache (March 2007).

The size of adobe may vary according to the needs. These adobe are cm 25 x 12 x 12 - Degache (May 2009).

The adobes are then dried under the Sun for two or three days, later they are ready for use in construction - Degache (March 2007).

The adobes are used in construction as the normal fired bricks - Degache (March 2007).

The mortar used between two rows of adobes is the same mortar used to make adobes. So once the work is completed there is no distinction in terms of materials between the mortar and the adobes. It is possible to realize whole works in adobe including coverage with barrel vaults, for example, at this point we have a complete continuity of material with the total absence of thermal bridges.

Adobe building is very simple and does not represent a risk to your health seen the materials are just sand and clay - Degache (March 2007).

The problem of water is a very serious problem for adobe buildings, especially during the construction phase. If you do not take precautions, the results could be very unpleasant - Degache (March 2007).

Don't build anything in adobe until you have found a systematic solution to the water problem. The solution Vindex is a very good and cheap solution.


(1): derived from arabic "Athub" which means mud bricks.