The goal of _______ is to completely break up the concrete into numerous small chunks:

The correct choice focuses on the process of rubblizing, which is specifically designed to break concrete pavements into small, manageable pieces. This technique is part of pavement rehabilitation strategies where the existing concrete is shattered into a series of small fragments while maintaining its interlocking nature. The small chunks created through this method provide a stable base for the overlay of new asphalt, promoting better load distribution and reducing the risk of reflective cracking.

This method is advantageous as it enhances the structural integrity of the pavement by allowing for better bonding with the new asphalt layer. The process aims not only to recycle the old material but also to improve the overall performance of the pavement system. In contrast, alternatives like cracking and seating or breaking and seating focus on creating larger pieces that might not contribute as effectively to the desired outcome of a strong, interlocked base. Sawcutting and sealing address different issues related to pavement maintenance, primarily focusing on repair rather than breaking up concrete completely. Therefore, rubblizing is the method that best aligns with the goal of thoroughly breaking the concrete into numerous small fragments.