What Is The Best Lightweight Concrete Aggregate?

There are many options when it comes to lightweight aggregates that you can use to replace sand and gravel in a concrete or mortar mix. Each lightweight aggregate will have unique properties that will make it suitable for certain applications. This video addressed four characteristics of lightweight concrete examples and which lightweight aggregates might be best to achieve these results. Common lightweight aggregates include:

Pumice
Vermiculite
Perlite
Foam/Suds
Peat Moss (Hypertufa)
Slate
Shale
Clay

These are just some of the more common options for lightweight concrete aggregates and each will have their advantages and disadvantages. Pumice stones can replace gravel in a concrete mix to help create a lot of yield. Vermiculite is both very absorbent as well as thermally efficient. Suds/foam is certain to make the lightest weight concrete. Perlite along with white cement would be the best lightweight concrete mix to use if you want to dye or pigment the color of the concrete. A white platform will allow for more vivid and dramatic coloring.

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