How to Pour Cement at an Angle

Cement poured at an angle requires a low-slump mix.

Many cement projects are built on slopes. This additional complication can make the pour much more difficult than a structure poured on level ground. However, using the proper techniques, even a do-it-yourselfer can produce results that are structurally sound and look great.

Things You'll Need

• Concrete forms
• String line
• Concrete vibrator
• Transfer shovel
• Concrete float
• Stiff broom
• Wooden board (two-by-four)

Instructions

1. Set the concrete forms at the desired grade for the structure. Establish the proper slope by setting points at the beginning and end -- at the proper elevation -- and then pulling a string line tight between the two points. Set the forms according to the string lines.

2. Mix your concrete with the least amount of water possible. Check your plans and specifications to familiarize yourself with the minimum slump allowable for your project. This can also be found on the bag of most sacked concrete. You want the mix as dry as possible.

3. Using a transfer shovel, fill the forms starting at the lowest point. If there are any toes or footings in your structure, fill them first and work from the bottom toward the top. Slightly overfill the forms.

4. Vibrate the concrete with a concrete vibrator to ensure any air pockets are released and to provide proper consolidation of the concrete.

5. Strike off the excess concrete by dragging a two-by-four across the top of the form boards. Add or remove concrete to ensure a proper grade.

6. Finish the top of the concrete with the float. As the concrete begins to dry, drag a stiff broom across the top to provide a slip-resistant finish.

References

• Quikrete: Building a Concrete Patio
• Outdoor Living: Step by Step to a Concrete Patio