The materials were crush and ground in order to obtain an uniform
particle size below 600 lm. Different mixtures were obtained
substituting clay by the agricultural residues (5 and 8 wt.% dry
weight) and adding 7.5 wt.% of water to humidify. The mixes were
called as M0:brick body std; M1: 95 wt.% clay + 5 wt.% sawdust;
M2: 95 wt.% clay + 5 wt.% grape seeds; M3: 95 wt.% clay + 5 wt.%
cherries seed; M4: 92 wt.% clay + 8 wt.% grape seeds; M5:
92 wt.% clay + 8 wt.% cherries seed; M6: 95 wt.% clay + 5 wt.% sugar
cane ash. In order to obtain comparable results, series of 10
samples for each composition were prepared for the tests. Laboratory
brick samples were obtained by uniaxial pressing (25 MPa),
the samples in the form of bars (30 mm 80 mm) were dried for
24 h at 110 C and then fired in an electrical kiln (thermal cycle
of 172 min total time, Tmax: 950 C, 1000 C). After firing bricks
were cooled until room temperature by natural convection inside
the kiln. The temperatures chosen are normally used in the industrial
brick process (Ma