THE EFFECT OF STEEL FIBERS ON THE MECHANICAL PROPERTIES OF HIGH PERFORMANCE CONCRETE

Khalid B. Najem, Saeed K. Rejeb, Shakir A.Salih
2005 Al-Rafidain Engineering Journal  
The present investigation considers the effect of steel fibers content and the combined effect of rice husk ash (RHA) and high range water reducing agent (HRWRA) on the mechanical properties of the produced matrix. The experimental results showed the using steel fibers in High-performance concrete led to a considerable improvement in mechanical properties of concrete. The results exhibited that the addition of steel fibers to high performance concrete up to 1% with 6% (HRWRA) and 8% (RHA) as a
more » ... and 8% (RHA) as a partial replacement by weight of cement, increases the compressive strength significantly. Also, the results showed that the addition of 1.5% steel fibers with 6% (HRWRA) and 8% (RHA) increases the splitting and flexural strengths significant. At 28 days, the compressive, splitting and flexural strengths were increased to 11.57%, 63.86%, and 32.93% more than High performance concrete without steel fibers, respectively.
doi:10.33899/rengj.2005.46202 fatcat:446edm5sbzcpjnyw5ejdfu6zlm