Final answer:
Concrete revolutionized Roman architecture by enabling the creation of complex, three-dimensional structures with enriched interior and exterior design. It offered new levels of plasticity in construction and more freedom in the architectural shaping of spaces such as the Pantheon's grand interior dome.
Step-by-step explanation:
The significance of concrete in the creation of walls during Roman times was multifaceted. It revolutionized Roman architecture by allowing the creation of structures that were not only more complex and varied in form but also characterized by a significant increase in interior spatial potential. The innovative use of concrete enabled the Romans to think of walls in three dimensions, creating 3D walls, sculpting thick walls, enriching the internal and external aesthetics, and introducing concepts of plasticity and Poche. Examples such as the Pantheon exemplify how concrete's adaptability provided architects with the freedom to design grand interior spaces that were structurally efficient without the need for numerous supports.
With the advent of concrete, the Romans were able to utilize this material in combination with their masonry techniques to not only create impressive exteriors but also focus on sculpting interior spaces. Unlike ancient societies that relied on large stone blocks, Romans leveraged the flexibility and strength of concrete to push the boundaries of architectural design, allowing them to embellish their structures with Marble and other coverings, achieving a richness in architectural detail that was unprecedented at the time. The concrete also demonstrated resilience against moderate seismic activities, which was crucial for the longevity of their structures.