The flexural strength was tested according to BS EN 12390-5:2009 [23], using 500 100 100 mm prisms tested in a four point bending setup in a 1000 kN compression machine and the results of the replacement series are presented in Fig. 8 and Table 3. The flexural tests were the first to exhibit a marked difference with the increase in aggregate replacement, with a largely linear decrease and a maximum decrease of 17.9% with the floor and wall tile 100% replacement series compared to the reference concrete. The waste ceramic returned flexural strength decrease as much
as 25% with 100% replacement. The presoaked and fine aggregate replacement specimens performed similarly to the 50% floor tile replacement specimens. The decreased performance in flexural strength is comparatively worse than the compressive and tensile strengths. The cement in the flexural specimens showed decreased adherence to the tile aggregates, lending to an overall weaker bonding matrix.