low weight concrete is a very versatile construction material for numerous applications. It is a great alternative for projects that require low weight, high strength, fire resistance, noise absorption or insulation from heat damage.

The basic forms of low weight concrete include: Lightweight aggregate concrete, No fines concrete, Aerated or foamed concrete and Cellular concrete.

LWC has many advantages: It is less expensive than normal concrete. It can be cast in place and does not have to be transported or handled during construction. It is also more resistant to weather and has better insulating properties.

This type of concrete is characterized by the inclusion of air bubbles in the cement paste or mortar matrix to form a cellular structure with 30-50 percent voids (Aerated or foamed concrete). It combines appropriate thermal insulation, self-compaction and is easy to work with.

Another advantage of lightweight concrete is its ability to absorb water. This allows it to be cured by placing it in small areas, called internal curing, rather than having to rely on the concrete being pumped out all over the building.

During the early 1900s, lightweight concrete became a common way of building bridges and other structures. The use of this construction method was further increased by the development of new types of artificial lightweight aggregates, enabling the creation of structural LC that could be made lighter than traditional RC.