The natural colour of concrete is grey because the colour of the cement used to make it is typically grey. The cement particles coat the sand and stone and hydraulically bind the materials together.
Concrete can vary in shades of grey depending on the strength of the concrete. You may find, depending on the concrete and constituent ingredients, that a stronger concrete has a lighter colour.
The reason cement is grey has to do with the manufacture of Portland Cement. In cement manufacturing, Iron Ore is used as one of the main constituents, and Iron Ore is black in colour, so when it is combined and melted with the other materials it tints the cement grey.
We deliver to the following towns and their surrounding areas: Bedale, Boroughbridge, Catterick, Easingwold, Harrogate, Knaresborough, Leeming, Leyburn, Masham, Northallerton, Ripon, Thirsk and Wetherby.
Please, contact our team here for more details.
