mixer for approximately 30 min until a homogenous mixture was obtained (Fig. 2).
Earth bricks from different mixtures combined with different natural fibres that were used in the thermal conductivity tests are given in Table 1. The material compositions in Table 1 are given as a percentage of earth material dry weight.
The soilfibre mixture was then poured into a steel mould and compacted in a press. The steel mould dimensions have a length of 24 cm, by width of 12 cm, and height of 6 cm (see Fig. 3). The surface