All-in Concrete Gravel (20mm [¾"] all-in)
A blend of sand and gravel aggregate, also known as all-in ballast or mixed ballast. It requires only the addition of a cement (e.g. ordinary Portland Cement) and water to make concrete. It is also used for pipe bedding haunching and surrounding material (the exact all-in material used will depend on the nature of the pipe).
Complies with BSEN 12620. We regularly sample our gravels to check that grain size distribution meets specification.
Available in one tonne bags (at 1000kg a fraction smaller than an imperial one ton bag, which would be 1016kg). Small 20kg samples are also available (please ring).