What is the aim of bullfloating during the finishing process?

The aim of bullfloating during the finishing process is to produce a dense, hard, chip-resistant surface. Bullfloating involves using a long-handled tool called a bull float to flatten and smooth the surface of freshly placed concrete. This action helps to embed the aggregate just below the surface while bringing the cream (fine particles of cement and water) to the top.

As a result of this process, the surface becomes densified and resistant to chips and wear, which is important for the durability and longevity of the concrete. It is also a critical step in preparing the surface for further finishing activities, ensuring that the final surface is not only aesthetically pleasing but also functional and durable in its intended application.

The other options relate to aspects of concrete work but do not directly describe the primary goal of bullfloating as clearly as the correct answer does. Increasing workability and producing a smooth surface can be incidental benefits, but the primary aim focuses on creating that dense, hard surface. Allowing for easier placement of rebar is unrelated to the bullfloating process as it occurs earlier in the construction sequence.