Using Steel Rebar To Support Your Concrete Pad
Concrete is strong and durable in most situations. However, a slab that stretches horizontally over a large area can develop problems if the ground under it shifts. Steel rebar installation is an excellent way to help reduce that from happening, and when installed correctly, the rebar can hold the concrete together.
If you have not seen steel rebar, you might be surprised at how simple it is considering the performance it offers. Steel Rebar is made from low-carbon mild steel, and the outside of the round bar has texturing that allows it to grip firmly inside the concrete. The material can be bent, cut, and manipulated to meet the needs of the slab and is installed before the concrete is poured, so it becomes part of the finished product.
Rebar is best installed in the center of the slab using stakes and connectors that allow concrete contractors to build a mesh inside the slap. Steel rebar installation is not overly challenging, but it does need to be supported, and the connections at the joints should be tied together with steel wire or connected with plastic snap-on joints.
Most rebar installations for slabs start with vertical pieces that sit on the ground where the base of the slab will be. The horizontal bars will anchor to the verticals, and the goal is to get the rebar in the center of the slap when completed. A four-inch slab will often have rebar set at about two inches off the base to try and achieve the best support possible.
Pouring Over Rebar
When the steel rebar installation is complete, the concrete is poured over it. It is vital to pour slowly enough that workers can work the concrete under the rebar to avoid air pockets in the concrete. If the rebar installation causes voids, it can weaken the concrete instead of supporting it, so care must be taken to push concrete under the framework and into all the areas around the metal bars.
Often an experienced concrete truck operator will pour a thin layer of concrete over the entire form to ensure the material settles under the rebar. If the operator can not reach the entire area, concrete workers will have to move the concrete to the areas that the truck can't reach, and often that ensures the concrete gets distributed in and around the rebar.
Once the concrete cures around the steel rebar, the steel will help hold the slab together and makes it extremely strong. Steel rebar installation is common in garage floors, house slabs, and larger expanses of concrete. Rebar is also used in vertical structures like bridge supports, large columns on buildings, and anything structure that needs additional mechanical strength to help ensure the concrete stays together and can do the job it is meant to.
For more information, contact a rebar installation service near you.