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How To Add Concrete Steps To An Existing Concrete Slab

How To Add Concrete Steps To An Existing Concrete Slab

If you have an existing concrete pad, such as a patio or basement foundation, and want to pour a concrete staircase over the top of the slab, you may find that the foundation for the staircase is actually easier than installing a concrete staircase in the dirt. already installed Concrete slabs provide adequate support for new concrete steps. Following the concrete steps is for DIY homeowners. However, check with your local building permits and codes office to ensure that the steps you are installing meet your local building codes.

No stone tools are required to install concrete steps.

Stage 1

Layout the concrete foam on the concrete slab and place the wall on which you will install the new concrete staircase.

Step 2

Coat the inside of the foam with a concrete release agent. If you do not have a concrete mold release agent, you can use a standard cooking spray. A mold release agent or cooking spray lubricates the mold and can be easily disassembled once the mold is disassembled.

Step 3

Reduce the amount of concrete you need to use by filling the lower part of the back of the mold with collapsed limestone. In general, crushed stone is cheaper than concrete and helps to save money. It also shortens the curing time.

Step 4

Mix the concrete according to the instructions provided with the concrete. Use concrete with a tensile strength of at least 4,000 PSI to ensure that the stairs can support the weight.

Step 5

Fill the concrete form slightly with freshly mixed concrete. Work on the edge with a shovel and push it into the concrete the shovel to expel air bubbles.

Step 6

Place a 2 x 4 board on top of the form and use it to scrape off excess concrete from the top step. The boards level the concrete with the top edge of the form. Work your way down, and repeat this at each step. Wait for the concrete to turn light gray before proceeding.

Step 7

Slide the concrete stair tool to the leading edge of each step to give it a smooth, rounded shape.

Step 8

Level the surface of each step with a flat trowel. Use a circular injection motion and overlap each stroke by 50% to ensure adequate coverage. This softens the rough texture of the concrete.

Step 9

About 24 hours after pouring the concrete, remove the screws holding the sides of the concrete foam with a screwdriver. With the sides removed, the upper part of the concrete foam is lifted off the steps.

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