item

Density

(g/cm³)

Absorption,%

Los Angles abrasion,

Soundness

Flat &

Elongation

Clay lump

Light matter

<75 μm

4.75 - 19 mm

2.62

0.8%

25%%

5.0%

3.7%

0.30%

0.08%

0.8%

19 - 37.5 mm

2.63

0.6%

27%

5.8%

2.5%

0.25%

0.08%

0.6%

37.5 - 63 mm

2.64

0.3%

28%

7.0%

8.8%

0.20%

0.06%

0.3%

ASTM C33

>2.5

/

<50%

<12%

<30%

<3%

<0.5%

<1%