Rigid pavements are developed to endure heavy loads and harsh weather conditions, Concrete pavements can be improved in various ways depending on the circumstances. The main goal of this paper is to propose sustainable new types of rigid pavements with 0.05% carbon nanotubes (CNTs) and 1% steel fibers (SFs) and study their mechanical properties. Eight slabs were developed and experimentally tested for failure loads, deflections, and crack patterns using a center static load. ANSYS finite element models were then developed to analyze stress distribution. Results show that the concrete mixture with nanoparticles and SFs significantly improved load-bearing capacities while reducing deflections and cracks. These rigid pavements are expected to be more sustainable, offer better serviceability, and have lower maintenance costs. Also, the ANSYS results align well with experimental data, demonstrating an accurate prediction of slab-soil interaction.