Design a No-Fine Concrete Using Epoxy in Pavement

No-fines concrete is an advanced pavement material known for its strong drainage capabilities, making it a widely used rigid road surface. With growing demand for reduced cement content due to industrial advancements, researchers have explored epoxy resin as a partial or total cement replacement. This study examines the mechanical properties of no-fines concrete with varying epoxy replacement levels and applies KENSLAB analysis for pavement thickness design. Seven concrete mixes were prepared with epoxy replacing cement at 100%, 95%, 75%, 55%, 35%, and 15%. Mechanical tests, including compressive strength, flexural strength, modulus of elasticity, bulk density, water absorption, and durability (wet-dry), were conducted after 7 and 28 days of curing. Additionally, the PerviousPave system was used to optimize pavement integrity by adjusting slab thickness, subbase layer thickness, and stormwater management. Results showed that the 55% and 100% epoxy replacement mixes performed best. Compressive strength increased by 2.44% and 33.44%, respectively, at 28 days compared to the reference mix. Flexural strength reached 5.99 MPa for 100% epoxy and 4.69 MPa for 55% epoxy at 28 days. Structural analysis demonstrated that increased slab and subgrade stiffness reduced tensile stresses, improving pavement durability and extending service life. These findings highlight the potential of epoxy-modified no-fines concrete for enhanced pavement performance in traffic and environmental conditions. Doi: 10.28991/CEJ-2025-011-05-021 Full Text: PDF