Experimental Analysis of the Influence of E-Glass Fiber and Cement Content on the Mechanical Properties and Sustainability of Roller-Compacted Concrete in Huancayo, Peru

Choccelahua L.M.L.; Huaman D.Q.; Vega J.G.S.; Galvan J.L.A. · Civil Engineering and Architecture (2026) · DOI: 10.13189/cea.2026.140438

Resumen

Roller-Compacted Concrete (RCC) is a critical material for large-scale infrastructure, yet its performance can be enhanced. This study experimentally investigates the influence of E-glass fiber on the mechanical properties of RCC. Mixes were prepared with three cement contents (10%, 12%, and 14%) and three glass fiber dosages (0.5%, 1.0%, and 1.5%). Results demonstrated that both compressive and flexural strengths increased significantly with higher cement content. The optimal mix, containing 14% cement and 1.0% glass fiber, yielded the highest performance, achieving a 28-day compressive strength of 39.82 MPa and a flexural strength of 5.90 MPa. Crucially, the fiber inclusion transformed the material's failure mode from brittle to ductile, significantly enhancing its toughness. A fiber dosage of 1.5% consistently resulted in a slight strength reduction compared to the 1.0% dosage, indicating an optimal reinforcement level. Additionally, the incorporation of fibers increased the maximum dry density and the optimum moisture content of the mixes. These findings demonstrate that glass fiber reinforcement can significantly enhance the structural performance and durability of RCC, making it a promising material for resilient infrastructure applications such as pavements and dams.

Instituciones: Universidad Continental