When preparing surfaces made of concrete, AAC (autoclaved aerated concrete), or bricks for any construction or finishing work, it is crucial to ensure that these surfaces are in optimal condition. Firstly, all surfaces must be thoroughly cleaned to remove any dust, dirt, or debris that could affect the adhesion of subsequent layers. This includes removing any oil, grease, or other contaminants that could prevent proper bonding. Cement laitance, which is the weak, powdery layer formed on the surface of concrete due to the bleeding of water, must also be entirely removed. Additionally, any loosely adhering particles, such as loose aggregates or mortar, should be brushed off or cleaned away to ensure that the surface is sound and stable.
Concrete, AAC, and brick surfaces must be clean, sound, and free of contaminants such as oil, grease, and cement laitance. All loosely adhering particles should be removed to ensure a stable and durable finish. Proper preparation of these surfaces is crucial for the longevity and effectiveness of any applied coatings or treatments.
