Impact Resistance and Strength Reliability of Fiber-reinforced Concrete in Bending under Drop Weight Impact Load
Published at : 07 Jul 2014
Volume : IJtech
Vol 5, No 2 (2014)
DOI : https://doi.org/10.14716/ijtech.v5i2.403
Murali, G., Santhi, A.S., Ganesh, G.M., 2014. Impact Resistance and Strength Reliability of Fiber-reinforced Concrete in Bending under Drop Weight Impact Load. International Journal of Technology. Volume 5(2), pp. 111-120
| G. Murali | School of Mechanical and Building Sciences, VIT University, Vellore, Tamil Nadu, India |
| A. S. Santhi | School of Mechanical and Building Sciences, VIT University, Vellore, Tamil Nadu, India |
| G. Mohan Ganesh | School of Mechanical and Building Sciences, VIT University, Vellore, Tamil Nadu, India |
This paper presents an experimental investigation on the Impact failure energy and strength reliability of fiber reinforced concrete (FRC) by using a simple drop weight test which was based on the testing procedure recommended by ACI committee 544. Two different steel fibers were used as the reinforcing material in various volume fractions such as 0%, 0.5%, 1.0% and 1.5% with a water cement ratio of 0.42. Furthermore, the two-parameter weibull distribution was used to analyze the experimental data in order to sort out a variation of test results. Using the weibull distribution, the impact failure strength reliability, in other words, the probability distribution according to which the concrete will fail, was obtained. The results indicated that the concrete containing a 1.5% volume fraction of fiber gave the best performance followed by 1.0% and 0.5% under impact loading. It was proven that the probabilistic distributions of the impact failure energy of seven types of samples approximately follow two-parameter Weibull distribution.
Fiber, Impact failure energy, Impact load, Linear regression, Reliability, Weibull distribution
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