Final answer:
The use of a concrete slab offers benefits such as reduced construction time and cost-effectiveness, along with being an excellent thermal protector.
Step-by-step explanation:
The advantages of using a concrete slab instead of a foundation wall include reduced construction time, cost-effectiveness, and thermal protection. A concrete slab is made of lightweight concrete, which consists of a mix of lightweight coarse aggregate and fine aggregates like shale, clay, or slate. This modern concrete is advantageous because it is longer-lasting, reduces the load on structures, and allows for faster building rates. Additionally, concrete's inherent properties provide elasticity that is beneficial when designing a structure.
Compared to cut stones such as marble or traditional red brick, concrete is much less expensive and does not require skilled labor for cutting or assembling. It provides the ability to mold space as it can be poured into various shapes using simple wooden molds. Furthermore, engineers value concrete's compatibility with steel reinforcing rods, as both materials have similar coefficients of linear expansion, which is essential in managing thermal stress in construction projects.