Dear Civil Engineer

Cracks on a concrete slab can occur due to various reasons. Here are some common causes: 1. Shrinkage: Concrete shrinks as it cures, leading to cracks. 2. Settlement: Soil settlement or uneven foundation can cause cracks. 3. Thermal expansion: Concrete expands and contracts with temperature changes, causing cracks. 4. Poor construction: Inadequate preparation, mixing, or finishing can lead to cracks. 5. Weak subbase: A weak or unstable subbase can cause cracks. 6. Overloading: Excessive weight or pressure can cause cracks. 7. Weathering: Exposure to weather, especially freeze-thaw cycles, can cause cracks. 8. Chemical damage: Exposure to chemicals, like salt or acid, can damage concrete. 9. Poor drainage: Water accumulation can cause erosion and cracks. 10. Soil movement: Soil movement or erosion beneath the slab can cause cracks. 11. Tree roots: Tree roots growing beneath the slab can cause cracks. 12. Poor curing: Inadequate curing can lead to weak concrete and cracks.

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