Frequently asked questions:

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Technically, LAVA is concrete.  It shares qualities such as durability, integrity, termite resistance, etc.  However most LAVA concretes are, by design, not as strong as regular concrete.   Typically they are mixed to achieve half the strength, or less, to match masonry code strength.  Less strength and lighter weight allows LAVA to maximize insulation, fire protection, and forming qualities.  Volcanic concretes are easier to remodel than regular concretes.