regular size(mm)

monolithic weight（kg)

single chip(㎡）

number of pieces/㎡

weight/㎡（kg)

600*300*55

17.84 

0.18

5.56 

99.11 

300*300*55

8.92 

0.09

11.11 

300*150*55

4.46 

0.045

22.22 

200*200*55

3.96 

0.04

25.00 

200*400*55

7.92 

0.08

12.50 

200*100*55

1.98 

0.02

50.00 

test items

standard values

detection value

compressive strength

≥35

≥50

flexural strength

≥3.5

≥6.0

permeability coefficient

≥2.0×10-2

≥3.0×10-2

frost resistance

freeze cycle 25 times in summer and cold winter

single block mass deletion rate≤20%
depth of surface defect after frost≤5mm

maximum1.0
maximum0

strength loss rate≤20%

12

wear-resisting degree

milling pit length≤35

28

skid resistance

≥60

70