Avantajele și dezavantajele betonului spumos

beton spumos is a lightweight concrete made by mixing fine aggregates, agenţi de spumă şi apă. It can be produced with natural or synthetic foaming agents.

Lightweight concrete has many advantages over conventional concrete, such as lower costs, faster construction, high energy efficiency and low environmental impact. It can be used in a wide range of applications including insulation, elemente structurale, filling of voids and grouting.

Its properties include a high strength-to-weight ratio, greutate redusă, conservarea căldurii, sound insulation and corrosion resistance. It can be produced with a variety of admixtures, including lime, gips, cement and fly ash.

Rezistența la compresiune: The compressive strength of beton spumos depends on the water-cement ratio, mix design and the type of foaming agent. It can be between 1.0 şi 15 MPa, depending on the amount of foam and the grade of cement.

Izolatie termica: The thermal properties of beton spumos are also affected by the pore structure and the size distribution of air voids. The narrower the air voids, the better the insulation.

Drying shrinkage: beton spumoss have a lower drying shrinkage than ordinary concrete. This is because the air voids are more dense than the aggregate particles.

Coroziune: The cellular structure of beton spumos has a greater resistance to corrosion than the cellular structure of ordinary concrete. It is therefore an excellent choice for exterior protected constructions where corrosion is a problem.

Adding carbon fiber (CF) to the beton spumos increases its mechanical performance. Cu toate acestea, the CF must be preprocessed before being added to the concrete mixture.