Comparing Aerated Concrete and Autoclaved Aerated Concrete

When selecting construction materials like aerated concrete and autoclaved aerated concrete, numerous questions about their properties and differences arise. Both materials have a porous structure and are used in construction, but there are significant differences between them.

1. Density and Strength. Aerated concrete blocks are slightly less dense compared to autoclaved aerated concrete. However, over time, aerated concrete gains strength, making it more reliable than its counterpart. Only high-quality materials and specialized technologies are used in the production of aerated concrete.
2. Thermal and Frost Resistance. Both materials possess similar thermal insulation properties and resistance to frost. However, aerated concrete slightly surpasses autoclaved aerated concrete due to its porous structure where cells are isolated from each other. In autoclaved aerated concrete, there is a connection between the cells.
3. Moisture Absorption. Aerated concrete absorbs moisture better than autoclaved aerated concrete and is suitable for high-humidity conditions. Whereas, autoclaved aerated concrete requires additional treatment for such environments.
4. Environmental Safety. From an ecological perspective, aerated concrete is a safer choice. It is made from environmentally friendly materials, whereas the production of autoclaved aerated concrete involves the use of unslaked lime and aluminum powder, which release harmful gases.
5. Cost and Material Choice. The choice between autoclaved aerated concrete and aerated concrete blocks depends on several factors, including cost. Autoclaved aerated concrete blocks are usually more expensive, but as demonstrated, aerated concrete has a number of advantages.

In conclusion, when choosing between aerated concrete and autoclaved aerated concrete, it's important to consider their main characteristics and purposes depending on the specific requirements of the construction project.