Building blocks comprising a compressed bale of polymeric material

摘要

Building blocks 1 comprise a core 2 of a bound, compacted mass of randomly arranged plastic or elastomeric material 3 encased in an impermeable material 5. The plastic or elastomeric material 3 is preferably used tyres and the impermeable material 5 is preferably concrete. The compacted core 2 is preferably tied in a bale by steel bands 4. A landfill site cell and a method of making the cell is claimed, the cell having perimeter walls and optionally the floor built from the blocks 1, which may be cemented or glued together. The blocks 1 in such a landfill cell can be coated to provide a barrier against waste exudates. Also claimed is a coffer dam formed from the blocks 1.