Title: Ultra-High-Performance Concrete with Micro- to Nanoscale Reinforcement

Author(s): Zainab Hashim Abbas Alsalami and Fatima Hashim Abbas

Publication: Materials Journal

Volume: 121

Issue: 2

Appears on pages(s): 73-92

Keywords: compressive strength; durability; flexural strength; macro glass fiber (MGF); nano aluminum fiber; nano steel fiber; ultra-high-performance concrete (UHPC)

DOI: 10.14359/51740369

Date: 4/1/2024

Abstract:
Ultra-high-performance concrete (UHPC) is considered a sophisticated concrete construction solution for infrastructure and other structures because of its premium mechanical traits and superior durability. Fibers have a special effect on the properties of UHPC, especially as this type of concrete suffers from high autogenous shrinkage due to its high cementitious content, so the properties and volume fraction of fibers are more important in UHPC. This study will describe previous related works on the mechanical behavior of UHPC specimens reinforced with micro- and nanoscale fibers, and compare of the behavior of UHPC reinforced with microfibers to that reinforced with nanofibers. The compressive strength, flexural behavior, and durability aspects of UHPC reinforced with nanoand/or microscale variable types of fibers were studied to highlight the issues and make a new direction for other authors.