Control joints are shallow grooves that are put in place after concrete is poured. They help manage any cracks that may occur in concrete. As the concrete hardens and shrinks, any separation usually occurs at the contractions joints where the concrete is thinner and weaker. Even with proper control joints, concrete driveways can still crack. Due to the variability of terrain and conditions, there is not a way to fully prevent or guarantee against aesthetic(hairline) cracking.
Concrete sets or "cures" through a chemical process called Hydration. Water molecules and the cement form tiny crystals that interlock with one another and the aggregate in the mix to give concrete its strength.
Concrete grade is defined by the strength of the concrete and is measured in pounds per square inch(PSI). Generally, the higher the PSI grade, the more weight it can handle. Residential driveway concrete is 3000 to 4000 PSI.
"CDC is ALL about customer satisfaction. I would not go anywhere else for concrete work. These guys are awesome !!! And the job they did on my new driveway and sidewalk was professional, beautiful, and beyond my expectations!"
-Steve E.
"Did a great job of communicating about permits and scheduling prior to the job. They were on time on the morning of the job, respectful of the property, finished in a timely manner and our driveway looks fantastic! I would definitely recommend!"
-Barbara B.
"Professional group, did a good job, did it quickly and efficiently. kept to the schedule. Went above and beyond and responded professionally to my concerns."
-Brett Z.
Frequently asked questions in Raleigh, NC.
Frequently Asked Questions
FAQ
Concrete Driveway Cost Calculator - where can I find one?
