Evaluation of Non-Metallic Fiber Reinforced Concrete in PCC Pavements andStructures. Final Report

摘要

This final report presents the construction and performance evaluation of fourstructures, namely a full-depth pavement, a thin bridge-deck overlay, a jersey barrier, and white-topping on scarified asphalt pavement, constructed with a new type non-metallic fiber reinforced concrete. This is the first time this newly developed polyolefin fiber reinforced concrete had been used in construction. The mixture proportions used, the quality control tests conducted for the evaluation of the fresh and hardened concrete properties, the procedures used for mixing, transporting, placing, consolidating, finishing, tining and curing are described. Periodic inspection of these structures were made and this report includes the results of these inspections. Conclusions and recommendations are given. The feasibility of using this NMFRC in the construction of highway structures has been established. The new NMFRC with enhanced fatigue, impact resistance, modulus of rupture, ductility and toughness properties is suitable for the construction of thin bridge deck overlays, whitetopping, barriers, and full-depth pavements.