Which building material is known for having limited strength and not intended for load-bearing walls?

Glass blocks are known for their aesthetic qualities and ability to allow light in while maintaining privacy; however, they possess limited structural strength. They are utilized primarily in non-load-bearing applications, such as partitions or windows, because they cannot support significant weight or provide structural stability. This property makes them unsuitable for load-bearing walls, which require materials that can sustain and distribute loads effectively.

In contrast, concrete, steel, and wood are commonly used in construction for load-bearing applications due to their structural integrity and strength. Therefore, in the context of identifying materials suited for load-bearing versus non-load-bearing roles, glass blocks are rightly categorized as a material that is not intended for load-bearing walls.