Limitations of Conventional Aluminum Systems
Despite the many improvements of this system over the conventional wood system, it is still considered a labor-intensive system. Fabrication, erection, and stripping are done piece by piece, resulting in low labor productivity and high waste of plywood. Generally, aluminum sections and aluminum or steel scaffold are durable unless sections are exposed to rough handling on site, especially during stripping of formwork.
Another problem associated with the general use of aluminum with concrete is the chemical reaction between aluminum and spilled concrete.