Technical Data

Average Results for Chilmark Stone

‘B’ bed (standard masonry usage stone):

Density                                                            2340kg/m³

Porosity                                                           11.45%

Saturation Coefficient                                     0.68

Water Microporosity                                        86.7%

Compressive Strength – Dry                        28.8MPa

Compressive Strength – Wet                        15.1MPa

Modulus of Rupture – Dry                              9.4MPa

Modulus of Rupture – Wet                              8.1MPa

Salt Crystallisation Durability -                   BRE Classification ‘A’

Frost Resistance -                                          Weight Loss (25 Cycles) <0.1 – <0.1 %

Frost Resistance Modulus of Rupture            Dry Post-freeze/thaw  8.0MPa

Frost Resistance Modulus of Rupture            Wet Post-freeze/thaw  7.1MPa

  

 (Test results for our other beds of stone are available on request)