| Density |
: |
2700 kg/M³ |
Compressive strength
parallel to grain |
: |
128 N/mm² |
Compressive strength
perpendicular to grain |
: |
150 N/mm² |
Traverse strength
to BS 7263 Part 1 1990 |
: |
56.1 KN |
Flexural strength
to ASTM C880-89 |
: |
37.2 N/mm² |
| Saturation coefficient |
: |
0.9% |
| Porosity |
: |
0.3% |
Coefficient of
linear expansion |
: |
7.65 x 10-6 per °C from 0-40°C |
Wetting & drying
to BS 680 1944 |
: |
No deterioration after 15 cycles |
Freeze thaw test
modified ASTM |
: |
No deterioration after 50 cycles |
| Resistance to thermal shock |
: |
No visible cracking or delamination after 15 cycles |
Acid immersion test
to BS 3798 test 36C |
: |
H2SO4 of SG 1.007) the acid had virtually no effect |
Salt crystallisation
BRE Method |
: |
0.05% mean weight loss |
Skid resistance
road note 27 |
: |
69 means skid resistance (wet) |
|
|
Nominal Slab Thickness : Typical use |
| 25 mm |
: |
Pedestrian areas only. |
| 30 mm |
: |
Pedestrian and cycle areas, gardens, balconies. |
| 35 mm |
: |
Occasional car, light vehicles and motorcycle access.
Garage entrances. |
| 40 mm |
: |
Walking places, market places occasionally used
by delivery vehicles and emergency vehicles. |
| 50 mm |
: |
Pedestrian areas often used by heavy lorries. |
| 65 mm |
: |
Roads and streets, petrol stations. |
