- Preventing cracks home
- Why concrete cracks: Top 4 reasons
- Acceptable Crack Widths
- Start with a Sound Subgrade
- Make sure the subgrade is compacted
- Subgrades and subbases for concrete slabs: Why having good support is critical to success
- Modify the Concrete Mix
- Use a low water-to-cement ratio
- Concrete admixtures that control cracking
- Install Joints
- Be active in deciding where control joints will be placed
- Joints in concrete slabs: Types and where to locate
- Properly Cure the Concrete
- Properly curing concrete slabs: Why and how to cure
- Allow time to water cure
- Related Information:
- How to build high-quality slabs on grade
Preventing Concrete CracksConstruction tips for ensuring durable, high-strength, crack-resistant concrete
Perhaps this section should be titled, "Attempting to Prevent Concrete Cracks", or "Minimizing Concrete Cracks", as it is impossible to guarantee against cracking.
Concrete cracking has been an oft-discussed topic. We have compiled a group of construction tips to help towards preventing cracks, and tips regarding cracking.
The "deliverables" to you from this section should be ideas to discuss with your slab designer and concrete contractor to achieve a slab that meets the requirements of your job. You’ll also find the most common causes of cracking, allowable crack widths and information on how to repair cracks to restore the structural or aesthetic integrity of your concrete.