Research on Properties of Foamed Concrete Reinforced with Small Sized Glazed Hollow Beads

Table 3

Characteristics of air voids of the test specimens.

Specimens	Minimum diameter (µm)	Maximum diameter (µm)	Mean diameter (µm)	Standard deviation	Variable coefficient
400-fa	39.07	698.3	203.2	139.7	0.512
400-g1	25.31	664.6	180.8	112.5	0.563
400-g2	37.74	569	179.8	103	0.266
400-g3	48.29	554	182.1	103.7	0.302
400-g4	40.42	546.6	170.5	97.53	0.281
400-g5	21.93	494.3	140.5	86.6	0.389