Aditivos para formigón lixeiro | Axentes espumantes de alto rendemento para formigón celular
Aínda que o formigón de escuma é unha solución marabillosa para moitos proxectos residenciais e comerciais, tanto os propietarios de vivendas como os propietarios de empresas poden preguntarse, É tan forte como o formigón normal?
The answer depends on the type of foam and the specific needs of the project. Por exemplo, epoxy foam is a popular choice for coating and resurfacing concrete surfaces as it provides a tough, durable layer that is resistant to chemicals, impacto, abrasion and thermal shock. It can also be used to fill cracks and voids and create surface texture, making it ideal for applications like sunken concrete lifting where the entire slab must be raised without sticking to the foundation wall.
En contraste, expanding foam is not only much lighter than concrete but it also does not stick to walls or other surfaces. It can be mixed in a sprayable form, making it easy to apply and allowing the user to reach hard-to-reach spots. And since it consists of up to 80 por cento de aire, it is naturally insulating and sound-absorbing.
Another benefit of using expanding foam is that it is waterproof. While concrete is water-resistant, it is not always totally waterproof, especially when it sits in a hole that sees rainfall. I’ve seen videos of fence posts that are set in concrete and then the fence starts to wobble over time. This is often caused by a lack of a solid base in the ground or because the concrete was not mixed well.