Which is not an advantage of using prestressed concrete?

The characteristic of higher weight is not an advantage of using prestressed concrete. In fact, one of the key benefits of prestressed concrete is the ability to design elements that are less bulky while still achieving high strength and load-bearing capacities. This technique allows for longer spans and thinner sections, which can lead to overall reductions in weight compared to traditional reinforced concrete structures.

In addition to this, prestressed concrete offers several advantages that contribute to its use in construction. Faster construction is achieved because prestressing can reduce the amount of material and time needed for formwork, enabling quicker assembly on-site. The flexible design aspect allows engineers to create innovative structures that can accommodate various aesthetic and functional requirements. Lastly, reduced cost can result from lower material requirements and shorter construction times, which often lead to savings in labor and overall project expenses.