Fly ash (FA), a by-product of coal thermal power plants, is increasingly used in concrete production because of its beneficial impact on concrete performance and the environment. This study focused on using FA to replace 80 wt.% of Portland cement in high-volume fly ash concrete (HVFC) for precast reinforced concrete piles (PRCP) production. The HVFC and normal concrete (reference) piles with the same rectangular cross-section of 350 × 350 mm and a length of 10 m were produced in the concrete production factory. The HVFC pile was then checked for bending behavior under concentrated loading in comparison with the reference pile. Results showed that no crack appeared on the HVFC and reference piles at the cracking bending moment of 35 kN.m. However, both the PRCP started to crack at a bending moment of 56 kN.m with the same crack width of 0.03 mm. At the fracture bending moment of 70 kN.m, the maximum crack width of 0.2 mm was observed for both pile types, and a few more cracks were observed on the HVFC pile compared to the reference pile. Besides, the displacement of the HVFC pile was recorded at about 14.6% and 16.0% higher than that of the reference pile at the bending moment values of 35 kN.m and 70 kN.m, respectively. As a result, the HVFC piles still worked well under fracture bending moment and the crack width was below the standard limit, demonstrating the great feasibility of applying HVFC for the production and use of PRCP in construction.