Open AccessStudying the effect of hybrid fibers and silica fumes on mechanical properties of Ultra-High-Performance Concrete
Author(s) -
Ammar Oudah AL-Mwanes,
Reza Agayari
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1076/1/012128
Subject(s) - silica fume , materials science , flexural strength , composite material , ultimate tensile strength , polypropylene , fiber reinforced concrete , fiber , compression (physics) , compressive strength
hrough this research, the influence of different amounts of polypropylene fiber and steel fibers and with specific proportions of silica fume on the hard characters of Ultra-High-Performance Fibers Reinforced Concrete (UHPFRC) has been studied. Amounts quantities were being added polypropylene fibers (0.4% to 0.8% to 1.2%), and 16%steel fibers and with specific proportions of silica fume (20%, 25%, and 30%) to the of UHPC. This study indicates the possibility of preparation of UHPFRC mixes utilizing locally available materials at markets when careful selection is being to materials and can achieve a compression strength of (178.84) MPa, splitting tensile strength of (19.96) Mpa, and the flexural strengths of (24.97) MPa. The experimental results showed a significant improvement in the mechanical properties of the UHPFRC which contains the combination of fibers compared to UHPC mixes without hybrid fibers. Ultra-High-Performance Fibers Reinforced Concrete (UHPFRC) may also be a building material with good improved mechanical and high properties use in building and construction working and can be utilized for all applications, particularly for rehabilitation works.