Development of Non-Proprietary Ultra-High Performance Concrete Mixtures

The development of non-proprietary Ultra-High Performance Concrete (UHPC) is one way to reduce the initial cost construction. However, workability a major issue for which such mixtures are not practical in field conditions. Ultra-high performance cannot be achieved conditions if concrete placed, finished, and compacted properly during placement. In this research, six UHPC were developed (three with steel fibers three without fibers) using materials readily available on local marketplace water-to-cementitious ratios ranging between 0.17 0.30. was determined standard ASTM flow table apparatus, specimens prepared determine compressive strength, splitting tensile permeable porosity. Flow test exhibited values greater than 250 mm. Such high by optimizing silica fume content water reducing admixture dosage. These strengths 120 MPa 5.10 both ambient elevated curing temperatures. Results indicated that can produced ratio as Steel helped increase strength due fiber-matrix interactions. Very low porosity (1.7–16.7%) observed indicates superior durability significant reduction ingress deleterious ions.