for the FC, Portland cement and water were mixed for 5 min, then the foam (the
foam was prepared by using the foaming agent and Quick Gel as the viscosifier
and mixed with water about 2 min in a foam generator, until the uniform foam bubble
obtained) was added to the mortar, followed by an additional 2 min of mixing.
The mix proportion of foam and polystyrene foamed concrete are shown in Table 2.