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Resurfaced concrete can last anywhere from eight to 15 years on average. Just how long your resurface concrete driveway lasts depends on how often you seal the concrete, the amount of traffic, how well the concrete resurfacer was applied, and even the soil quality. Poor soil that led to premature cracks in your existing concrete can quickly lead to even more cracks and problems if you don’t fix the root cause of the cracked concrete.

While most of the grass below newly poured concrete will die, some will grow through the cracks and around its edges with ease. Some grasses and weeds can even widen hairline cracks in your foundation, particularly the inevitable concrete cracks that form during the curing process. This is just one of the reasons it's best to remove grass before laying concrete.

You can dry pour concrete over existing concrete, but it’s best to use wet pour concrete instead. Dry pour concrete is easier to apply, but in order for new concrete to adhere to old concrete, it needs the right mixture for slow, uniform curing. Additionally, dry pour concrete is less durable and less resistant to cracking and concrete sinking, so dry pouring over an existing slab may result in surface imperfections appearing prematurely.

If you don’t seal a concrete patio, the surface may crack, fade, or stain. While it’s not strictly necessary to seal a concrete patio, doing so can help protect it, extend its lifespan, and enhance its beauty.