Ask This Old House mason Mark McCullough explains the basics of making concrete
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Time: 10 minutes
Skill Level: Beginner
Tools List for Making Concrete:
Bucket for measuring
Sand in bulk
Aggregate in bulk (crushed stone, etc.)
Portland cement in bulk
1. Measure out each ingredient in the following proportion: 3 parts sand, 2 parts aggregate, 1 part Portland cement. Use a bucket to help keep the measurements accurate.
2. Pour the sand, aggregate, and Portland cement into a mixing bucket. To make the mix stronger, add more aggregate and Portland cement.
3. Add water slowly to the bucket and begin to mix it up with the trowel. Add more water as needed until the concrete is at the correct consistency.
Most concrete can be made using a premixed bag, like the one Mark demonstrated, which is manufactured by Quikrete (https://www.quikrete.com/).
For bigger jobs that require a lot of concrete, it’s cheaper to make the concrete yourself. The sand, aggregate, and Portland cement can all be found at masonry yards.
Expert assistance with this segment was provided by MJM Masonry (http://mjmmasonry.com/).
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Keywords: This Old House, How-to, home improvement, DIY, ask this old house, mark mccullough, kevin o’connor, concrete, masonry
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