An Experimental Investigation of Mechanical Properties of The Ultra-High Performance Fiber Reinforced Concrete (UHPFRC)

Reza Aghayari, Ammar O. AL-Mwanes


Ultra-high performance concrete (UHPC) is a novel relatively construction material exhibiting enhanced mechanical and durability properties, which can lead to economical construction through reducing the cross-sections of structural. A study has been made through this investigation to understand the behavior of Ultra-High-Performance Concrete members with steel and polypropylene fibers. The research included the use of a cement, quartz sand, silica fume , steel fibers, polypropylene, superplasticizers and without using any type of aggregates other than the quartz sand Results show that it is possible to produce UHPFRC using materials that are available at the local markets if they are carefully selected and will achieve a minimum compressive strength of (170.32) MPa and The flexural strengths of (23.54 ) MPa and splitting tensile of( 19.1) MPa at the age of 28 days. This can be seen the experimental results showed a significant improvement in the residual mechanical properties of the concretes which contain the mix of fibers compared to concrete mixes without fibers.

Keywords: Polypropylene  Fibers; Steel Fibers; Ultra High Performance Concrete

DOI: 10.7176/CER/11-12-01

Publication date: December 31st 2019

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ISSN (Paper)2224-5790 ISSN (Online)2225-0514

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