Laterite: is a red or brown rock, which is formed by weathering of rocks in tropical climates. It is widely used in construction because of its qualities of thermal regulator, sound insulation and its availability in these regions.
These blocks are very resistant and their hydric and thermal capacities can be reinforced respectively by 45% and 60%2 thanks to a treatment with a decoction of Néré. The thermal conductivity of BLT is between 0.856 and 0.889w/m°c3, which makes it more favorable for construction in the hot and dry climate of Burkina Faso. For comparison, the thermal conductivity of the compressed earth block is 1.05 w/m°c, that of terracotta between 1 and 1.35w/m°c, and that of solid concrete between 0.8 and 1.75 w/m°c.
Wood: wood is a natural material of plant origin. It is made up of plant tissue that forms most of the trunk of woody plants. It will be used in our project to make certain frames, door frames, etc...
Reinforced concrete: Thanks to its resistance to compression, traction but also
to its quality/price ratio, this material will be used as a load-bearing structure for the
buildings.
Metal: Conductive body of electricity and heat, generally malleable and ductile and reflecting light.
Sandwich panel: it is a range of innovative one-piece construction material, consisting of a layer of insulating material between two plates of profiled material. Light, robust, economical, easy to assemble by interlocking, it offers, depending on the range, various qualities of material resistance, thermal insulation, sealing, fire resistance, sound insulation and architectural aesthetics.
Straw: Material locally available and forming an integral part of the architectural landscape of rural populations, straw is a material whose implementation does not require advanced knowledge or to have special strength since straw bales are not very heavy. Suddenly an ease of construction inducing a reduced cost of labor. Straw is an ex-
thermal and sound insulation. It has the characteristic of not releasing irritating fibers or toxic compounds. The risk of allergies for the occupants is therefore zero. It will be used for the roof of medium-term housing, and external kitchen shed.