Material specification (mm)

13.2 - 16

9.5 - 13.2

4.75 - 9.5

Technical index

Standard value

Test value

Crushing value (%)

≤26

12.4

13.2

13.2

Apparent relative density (T/m³)

≥2.6

2.94

2.95

2.96

Water absorption rate (%)

≤2.0

0.50

0.86

1.52

Consistency

≤12

8

Content of needle and sheet granular (%)

≤15

8.2

7.8

6.6

<0.075 Particle content (%)

≤1

0.2

0.2

0.2