The effect of special modifying additives on the performance properties of road cement concrete under current logistical challenges

Abstract

Prospects are outlined for the development of intelligent road pavements with the integration of sensor systems, self-healing materials, and energy-generating technologies. The proposed approach forms the basis for the creation of a modern, resilient, and high-technology transport infrastructure.Experimental studies verified the high synergy of a "triad" of modifiers: 0.8% PCE MasterGlenium ACE, 0.05% AEA MasterAir, and 0.9 kg/m³ polypropylene microfibers. At W/C=0.34, this complex increases compressive strength from 45.2 to 61.4 MPa and flexural strength from 4.4 to 5.4 MPa. The resulting low-capillary matrix with pore-dampers reduces abrasion to 0.40 g/cm² and raises salt-frost resistance above F300+, neutralizing "shear impacts" during heavy vehicle braking. Early hydration kinetics show the modified concrete reaches 68% strength (35.4 MPa) on the 3rd day, whereas the control mix gains only 28% (12.6 MPa). This dynamic shortens traffic closure periods fourfold (opening routes in 3–7 days), allows timely joint cutting, and ensures optimal compatibility with slipform pavers.Life Cycle Cost (LCC) analysis under ISO 15686-5 proves that a 1–1.2% initial mix cost increase (210,000 UAH/km) extends the maintenance-free interval to 18 years. Integral NPV of the life cycle drops by 24%, reducing maintenance costs by 40% and yielding 3% fuel savings due to prolonged IRI stability.