<强>砖单元铺路提供了一种美学上令人愉悦的替代传统的混凝土和沥青材料，当中等流量负载允许其使用。  In the most common brick unit paving construction method, individual bricks are abutted on a bed of compacted sand over a granular base course.  These layers (or courses) are constructed upon prepared foundational soils known as the subgrade, and are contained within a framework of edge restraints.