How to Block Support for Rebar in Concrete Slabs

Concrete is the most used material in the modern construction industry. Hardly can be imagined a modern construction without concrete.

Photo by T & H Foundations and Concrete ServicesSearch home design pictures

We know very well its characteristics, extremely strong in compression and not too good in tension. To increase the concrete tensile strength we need to include steel rebars in its composition. It is well known steel performs very well in tension. In other words, concrete and steel are two construction materials which complement each other. In a concrete section steel will add strength in tension.

In the process of concrete pouring it’s very important that steel remains in its positioned place. For that reason many products have designed to block steel to remain in the position when you are pouring the concrete.

Steps to Take:

1. First of all, you need to calculate the area where you suppose to pour the concrete. It’s very easy to do it. Usually the area is a rectangle.

So, measure the length and then the width. To find the area you have to multiply length by width.

2.  When you are positioning the steel you need rebar chairs. Rebar chairs are widely used to support the steel or cages at different heights.

You should calculate the height of rebar chairs or consult your construction plans.

3. Usually the rebar chairs have to be positioned less than 36 inches one from another. In fact, you need 13 chairs for an area of 100 square feet. However, you should follow your plans and building codes in your area.

4. Next step is installation of the rebar chairs. Block the steel cages before concrete pouring.

Laying Concrete Block in an Old Retaining Wall – Tips (