LIGHTWEIGHT COMPOSITES

摘要

A lightweight composite includes aggregate particles (14), a high density phase which surrounds the aggregate particles (14) or forms a thin exterior shell of an aggregate particle (14) and a low density matrix phase (16) which occupies interstitial space between the aggregate particles (14) to produce a cell (24) or sandwich beam microstructure. A lightweight cement composite and a method for producing such a lightweight cement composite are provided as are structural panels including a lightweight composite layer characterized by a sandwich beam microstructure. The low density matrix phase (16) can be cellular concrete characterized by a void (10) surrounded by a more dense material (12), which can be cement.