Mixture-proportioning of economical UHPC mixtures

By Ali Alsalman, Canh N. Dang, J. Martí-Vargas, W. Hale. 2020

141 citations recorded by the source corpus.

Abstract Ultra-High Performance Concrete (UHPC) offers innovative applications to concrete structures based on enhanced mechanical properties. The use of local materials is necessary to reduce the UHPC cost and save materials and energy. This research focuses on developing economical UHPC mixtures using locally available materials. A testing program, including 51 concrete mixtures, is developed to evaluate the effect of different fine materials, supplementary cementitious materials, steel fibers, curing regimens, and mixers type. The amount of steel fibers and type of fine materials are influential factors to the concrete cost. Mixer type does not have a significant influence on UHPC strength. By using a binder content of 1163 kg/m3 and incorporating fly ash as a part of the binder by 40% by weight, the cost was $283/m3 without steel fibers.

Subfields: Civil and Structural Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/c3f6953a30bc3c6b28d22c32a31b46a9eb9046c9