Design guide
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Design guide
Cast stone, which is sometimes referred to as reconstituted stone or simulated stone, starts with a drawing, from which subsidiary drawings are prepared so that a skilled pattern maker can create a wooden mould. Depending on the product and finish required, cast stone is made using a semi-dry mix of white and/or grey cements with natural or manufactured sands. The appearance of natural stone is achieved using crushed natural stone, well graded natural gravels and mineral pigments. A waterproofer is added to minimise moisture absorption and improve resistance to frost damage. On larger components, a coloured facing mix is used on the outside of the mould, with a higher-strength, noncoloured backing mix in the interior.
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