Pour Concrete Over Paving Slabs

The condition of the existing slab is the primary factor that determines how long the new concrete will last.

Pour concrete over paving slabs.

Concrete repair guide aci 546 and guide for concrete floor and slab construction aci 302 1. The condition of the existing slab is the primary factor that determines how long the new concrete will last. In this video we show you how to pour your basic 16 x 12 concrete slab. Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan.

Assess your slab this project will work with most patios. Unless the existing flags are lifted and the construction examined there is no way of knowing whether the structure is capable of supporting the additional weight loading of a permanent over layer of bedding and paving. Consider an existing pavement of 600x600mm flags that is to be overlaid with decorative patio flags of 300x300mm 300x450mm and 450x450mm. It requires less skill and less time and it s a whole lot easier on your back.

To save time and money many states and municipalities use a road repair technique known as whitetopping the process of pouring concrete over asphalt rather than removing the existing asphalt. Homeowners can benefit from this whitetopping technique to reduce labor costs and time when replacing worn asphalt driveways. Here we ll walk you through how to lay paving stones over concrete. You ll find a lot of useful information in two aci reports.

Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan. A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. If you decide to upgrade to stamped concrete paving stones will most likely cost you the same or even less in most cases. If your patio driveway or other concrete slab is falling apart and losing its appeal then you need to give it a facelift.

A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. We go over all the necessary steps for your concrete slab to come out perfect. Standard concrete slabs are generally lower in cost per square foot than the alternative. Concrete pavement is occasionally poured over the top of unstable soils because concrete has the ability to bridge the instability.

Pouring a skim coat over the surf. If the concrete has been poured over an unstable base the slabs once they crack at the expansion joints can pivot slightly with traffic.