Sinking concrete slabs our foundations are usually the result of settlement of soil, excessive water washing away soil below structures or intermitent compression by vehicle traffic. <br> <br>Sinking concrete can also be a symptom of a mixture of the above causes. <br> <br>This website will provide detailed explanations as well as summarised information chunks to help you learn everything you need to know about resin injection concrete slab lifting (Slab Jacking).