Foam concrete is created by uniform distribution of air bubbles throughout the mass of concrete. Foam is prepared in special device after that mixing in special mixer.

The components of vermiculite concrete are expanded vermiculite aggregate, air-entraining admixture, Portland cement all mixed and applied according to procedures.

Cinder concrete contains clean well-burned coal cinders which are used as coarse aggregate. It is a material with low unit weight and often made with spherical aggregates.

The light-weight concrete density is less because lightweight coarse aggregates and sometimes lightweight fine aggregates are used, which make the concrete weigh less.