Concrete block paving is generally installed “flexibly” on a bed of sharp sand between 30 and 50mm deep and jointed with kiln dried sand. For full details on bedding and jointing requirements please consult BS 7533 https://shop.bsigroup.com/

Concrete block paving can also be laid “rigidly” although this is less common. Laid “rigidly” means laid on a bed of cement mortar with mortar joints. For full details on bedding and jointing requirements please consult BS 7533 https://shop.bsigroup.com/