Quick Find   Search Help [?] Products Black / Grey Blue Earth Tones Green Metallic Colours Pink Purple / Violet Red & Orange White / Crystal Yellow Multi Colour Packs Range Please SelectColoured AggregatesColoured PebblesColoured SandGlass AggregatesLight Weight AggregateMetalsNatural GravelsNatural SandPlastic, Rubber & BrickPolished RiverstonesShell Aggregates Guest Products Guest Products New Products Sand - True Blue - Medium Pallet Delivery £290.95

Sand for Lime Based Mortar fundamentally differs from "Soft Building Sand" available through builders merchants as this often contains an excess of fine material. This fine material consists two distinct parts: Firstly, very fine sand particles (fines) ranging in size from around a third to a tenth of a millimetre in diameter. Excessive amounts of fines will demand more water to achieve a mix which can lead to shrinkage, an increased sensitivity to adverse weather conditions and de-bonding especially to low suction backgrounds. However, the bonding of a render both with a background, and between coats is dependant upon a percentage of these fines being present. Generally up to 20% of fines will achieve bonding without compromising permeability and capillary suction. Secondly, ultra fine clay (sometimes referred to as silt or loam) These clays have sizes well below a tenth of a millimetre in diameter. Clay minerals retain water resulting in extended drying periods, and are often responsible for a sand's colour. Hence, a sand chosen solely for its colour may well not be suitable for use. The suitability of sand also depends on the distribution of particle sizes larger than those regarded as "fine". A quality sand will comprise a range of particle sizes both allowing for the drying of the newly placed mortar and for its long term permeability. Sands with grain sizes of up to 6mm are suited to general building, those with particle size not greater than 3mm are suitable for stipple coats, base coats and rough finishes, whilst smooth finishing coats can be achieved with sands with grain size of 2mm or less Specialist Aggregates have brought together those sources which have characteristics suitable for Lime Based Mortar. Whilst we are unable to provide recommendation for a particular application our 20kg "sample" facility provides an efficient method of establishing a sand's suitability for use. Click an image for detailed product information Displaying 1 to 9 (of 9 products) Result Pages:  1      Sand - Brown - Coarse  Pack Options: Big Bag £127.51     Sand - Orange Brown - Coarse  Pack Options: Big Bag £127.51     Sand - Red Silica - Fine  Pack Options: Big Bag £163.28     Sand - Sea Dredged - Coarse  Pack Options: Big Bag £127.51     Sand - Sea Dredged Yellow / Brown - Fine  Pack Options: Big Bag £163.28     Sand - Silver Granite - Fine  Pack Options: Big Bag £163.28     Sand - Volcanic Black Mortar Sand  Pack Options: Big Bag £326.96     Sand - White Granite - Fine  Pack Options: Big Bag £163.28     Sand - Yellow Silica - Fine  Pack Options: Big Bag £163.28 Displaying 1 to 9 (of 9 products) Result Pages:  1

Basket 0 items view basket Reviews I just purchased this product for 'filling' in the bedding a .. Where are Big Bags? Click here to find out more Product Key Individual Packs See products for pack sizes. Pallet Deliveries Convieniently packed for ease of movement. See products for pack and pallet sizes. Rockery Stone Deliveries Caged stone delivery, packing may vary. Bulk Loads Crane off-loaded big bags - Minimum order 6 big bags.

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Website last updated:   Friday 03 September, 2010

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