Compressive strength tests to characterise the mechanical properties of foamed
concrete were conducted on an MTS servo hydraulic testing machine with a 100 kN
capacity and a constant displacement rate of 5 mm/min. At least three specimens
were measured for each concrete mix. In most cases, the results under the same
testing condition were reproducible with low mean standard deviations, SD
(SD=x < 10%, where x ¼ the mean strength value). The compression tests were
performed under soaked and unsoaked conditions.