Stoneage is Scotland's oldest pattern-imprinted concrete paving company, with a wealth of experience and a trusted workforce. The mix we use is a high grade concrete, using between 350 and 450kg of cement per cubic metre of concrete, with 5.5% air entrainer, a water reducer and Fibran 23. We also use steel reinforcement - a minimum grade of A142 upwards. Our minimum depth of concrete being 100mm. All our surface colour hardeners conform to British Standard. Our sealers are 100% pure acrylic.