2.5 Overrun measurement Overrun of samples was calculated as follows (Marshall et al. 2003): % overrun ¼ ððweight of unit volume of mixweight of unit volume foamÞ=weight of unit volume foamÞ 100
2.5 Overrun measurementOverrun of samples was calculated as follows (Marshall et al. 2003):% overrun ¼ ððweight of unit volume of mixweight of unit volume foamÞ=weight of unit volume foamÞ100