Лесни адитиви за бетон | Средства за пенење со високи перформанси за мобилен бетон
пена бетон is a lightweight concrete made by mixing fine aggregates, средства за пенење и вода. 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, структурни елементи, filling of voids and grouting.
Its properties include a high strength-to-weight ratio, мала тежина, зачувување на топлина, sound insulation and corrosion resistance. It can be produced with a variety of admixtures, including lime, гипс, cement and fly ash.
Јачина на притисок: The compressive strength of пена бетон depends on the water-cement ratio, mix design and the type of foaming agent. It can be between 1.0 и 15 MPa, depending on the amount of foam and the grade of cement.
Топлинска изолација: The thermal properties of пена бетон 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: пена бетонs have a lower drying shrinkage than ordinary concrete. This is because the air voids are more dense than the aggregate particles.
Corrosion: The cellular structure of пена бетон 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 пена бетон increases its mechanical performance. Сепак, the CF must be preprocessed before being added to the concrete mixture.