Q25 Slab/ / sett/ cobble pavings

No. Purpose

- Issued for Stage E [insert date]

Q25 Slab/ brick/ sett/ cobble pavings

GENERAL INFORMATION/REQUIREMENTS

310 NATURAL STONE SLABS Type: [insert type or location]  Stone paving slabs to EN 1341: Slabs of natural stone for external paving - Face dimensions generally, [insert]mm wide x [insert]mm long Thickness: 30mm or as determined by test values and design/performance. Finish: Rough ground finish – 60 grit Supplier to provide the following test results from a Accreditation Service (UKAS) approved independent laboratory: Compression – BE EN 1926 Flexural Strength – EN 13161 Slip Resistance - EN 14231 Frost Resistance: EN 12371 Thermal Shock Resistance: EN 14066 Abrasion Resistance - EN 14157 Water Absorption – EN 13755 Density – EN 1936 Porosity – EN 1936 Saturation Coefficient – EN 1936 Salt Crystallisation – EN 12370 - Petrographic name to EN 12407: Portland Bowers Roach - Denomination to EN 12440: Portland Bowers Roach, Limestone. Bowers and Mine, Easton , Portland, Dorset, England. Quarry Coordinates: 500 33’02.38” North, 20 26’25.36” West - Petrological family: Oolitic limestone from the Jurassic period - Colour: Off white / creamy buff. - Origin: Portland, Dorset, UK - Finish: Rough ground finish – 60 grit to match approved sample reference [insert] held at the architect’s office - Supplier: Albion Stone plc, Independent Offices, Easton Street, Portland, Dorset DT5 1BW; Tel: 01305 860369 or similar approved. - Quality: Free from vents, cracks, fissures, discolouration, or other defects deleterious to strength, durability or appearance. - Quality Management: Supplier to demonstrate compliance with ISO 9001 - Environmental Management: Supplier to demonstrate compliance with ISO 14001 - Responsible Sourcing: Supplier to demonstrate compliance with BRE Standard BES 6001

CE MARKING OF STONE  CE Certificates and Declaration of Performance Data Sheets - All stone must conform to the Construction Products Regulation: 1st July 2013. Contractors are to provide a CE Certificate and a Declaration of Performance data sheet relating the application for which the stone will be used along with their tender documentation.

 The CE Certificate shall contain the following information: - Flexural Strength tested to EN 13161 - Slip Resistance tested to EN 14231 - Tactility Frost Resistance tested to EN 12371 Abrasion Resistance tested to EN 14157

 The Declaration of Performance data sheet shall contain the following information - Unique identification code of the product type: EN 1341 – Slabs of natural stone for external paving - Type, batch, serial number or any other element allowing identification of the construction product as required under Article 11(4): - Intended use or uses of the construction product, in accordance with the applicable harmonised technical specification, as foreseen by the manufacturer: - Name, registered trade name or registered trademark and contact address of manufacturer as required under Article 11(5): - Where applicable, name and contact address of the authorised representative whose mandate covers the tasks specified in Article 12(2): - System or systems of assessment and verification of constancy of performance of the construction product as set out in CPR, Annex V: - In case of the declaration of performance concerning a construction product covered by a harmonised standard: - Declared performance: The performance of the product identified in points 1 and 2 is in conformity with the declared performance in point 8. This declaration of performance is issued under the sole responsibility of the supplier/manufacturer identified in point 4.

PERFORMANCE REQUIREMENTS FOR PORTLAND STONE PAVING SLABS - Flexural Strength tested to EN 13161 - Mean value: 3.94 Mpa - Slip Resistance tested to EN 14231 (SRV Test) - Mean value: Wet 85 / Dry 88 dry Frost Resistance tested to EN 12371 – 2.88% change in mean flexural strength after 48 cycles

- Abrasion Resistance tested EN 14157 - Mean value: 22.50

610 STONE SAMPLES  Provide architect with 1no. 300mm x 300mm typical sample of the Portland stone as per clause Q25/.310 to demonstrate the colour and finish. The visual range will be agreed with a visit to the quarry/mine to view the Portland Bowers Roach Quarry Range Panels  Obtain approval of appearance before placing orders with suppliers or proceeding with production