Limestone/Granite/Basalt/Ragstone quarried crushed rock containing particles ranging from 4mm to 10mm with no fines
Conversion factor: Approximately 1.6 tonnes per m³
Conforms to: SHW Series 500, BS EN 12620, BS EN 13043, BS EN 13242
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Used where an angular material has been specified
Mixing with sharp washed sand to make an all-in ballast for concreting where depth/compacted strength is an issue
When compacted will hold together and allow water to pass through (percolate) the voids created by having no fines