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In terms of durability, concrete driveways can last more than 50 years when properly maintained, compared to the typical 30 years for an asphalt driveway. However, the durability depends on the climate, base material and thickness, and thickness of the concrete or asphalt used. The longevity of concrete or asphalt driveways also depends on how well it’s maintained and the amount of wear and tear it endures.

A properly installed 6-inch concrete slab, mixed and cured under the right conditions, can support about 3,000 pounds concentrated over a single square foot without buckling. Conversely, concrete pavers can handle around 8,000 pounds per square inch when laid over a solid, well-compacted base.

Yes, fiber concrete can crack, and contrary to popular belief, it will crack under similar forces to rebar-reinforced concrete. The difference is in how the crack spreads through the slab. When you exert pressure on a slab, the slab flexes downward, putting tensile forces on the bottom of the slab. In rebar concrete, a crack at the bottom will also quickly appear on the top surface. In fiber concrete, the fibers hold the two sides of that bottom crack together, making it less likely for the crack to form on the top surface.

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.