AAC Block Manufacturing Plant

AAC (Autoclaved Aerated Concrete) blocks are lightweight, precast concrete building materials made from cement, lime, water, and fine aggregate (often fly ash), with aluminum powder as a foaming agent
An AAC block plant is a production line that mixes these ingredients, allows them to expand (via hydrogen gas from aluminum), molds the green concrete, then cures it under high-pressure steam in autoclaves
The result is aerated blocks/panels (~80% air by volume) that are used in wall construction.

Types of AAC Block Manufacturing Plant

Automation: Ranges from small manual plants (batch mixing by hand) to semi-automatic (mechanical mixers, manual pouring) to fully automatic (PLC-controlled lines with conveyors and automated molds).

Capacity: Mini-plants (e.g. ~20–30 m³/day) for small builders, up to large industrial plants (100+ m³/day) for mass production.

Raw Material Basis: Many plants use fly ash (a by-product of coal power, 50–65% silica) as the main fine aggregate
while others use sand. Plants may be built near fly ash sources (power plants) to cut cost.

Product Form: Some plants produce only blocks; others can make wall panels or lintels using the same mix

Applications in Various Industries

AAC blocks and panels are used in residential, commercial, and industrial buildings as a lightweight, thermally efficient alternative to brick or conventional concrete blocks. They provide good insulation, fire resistance, and lighter structural loads. In India and China, AAC is popular for low-cost housing and high-rise walls. Applications include partition walls, load-bearing walls (up to moderate heights), and cladding panels

Material Selection Considerations