Without the gravel aggregate, lightweight cement cannot support the same weight as traditional cement. One method of adding strength, though, is with the addition of fibers to the mix. By mixing in fiberglass fibers, for example, you can create stronger cement, though it is still not as strong as traditional mixes. This cement is not for use as support for structures or as flooring, but with reinforcement it can substitute for most traditional cement builds.
Things You Will Need
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Fill one 5-gallon bucket with water, one 5-gallon bucket with sand and five 5-gallon buckets with Styrofoam beads.
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Pour the bucket of water into a concrete mixer. Add one-half of a 94 lb. bag of Portland cement to the water in the mixer, as well as the bucket of sand. Start the mixer to combine the materials, mixing them together for a few minutes until they form a cement slurry.
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Add the bucket of Styrofoam beads to the mixer and mix for two minutes until the beads are soaked with the slurry. Add two more 5-gallon bucket of beads, mixing them in thoroughly.
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Pour in 5 lbs. of fiberglass fibers, mixing them in completely with the cement for reinforcement of the cement.
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Add the final 2 buckets of beads, one at a time, and mix for two minutes after each is added to fully cover the beads with the cement and other materials.
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Apply the lightweight cement as normal on any non-load-bearing surface.
The Drip Cap
- Lightweight cement is a cement mixture using lightweight aggregates such as Styrofoam beads or pumice stones as a replacement for heavier gravel aggregate.
- The problem with lightweight cement is in its strength.
- This cement is not for use as support for structures or as flooring, but with reinforcement it can substitute for most traditional cement builds.
- Add two more 5-gallon bucket of beads, mixing them in thoroughly.