Issue 50

M. Ameri et alii, Frattura ed Integrità Strutturale, 50 (2019) 149-162; DOI: 10.3221/IGF-ESIS.50.14

Figure 7 : Indirect tensile strength results for wet condition.

Figure 8 : Tensile strength ratio (TSR) of control and fiber-reinforced samples.

Resilient Modulus Totally, 21 specimens were built to perform the resilient modulus test, so that 3 specimens were built for each percentage of the fibers, and the amount of resilient modulus was determined by averaging for the samples containing the same percentages of fibers. Fig. (9) shows the results of the resilient modulus test for the control samples as well as the samples containing the basalt and glass fibers. As seen in Fig. 9, increasing the amount of basalt fibers increases the resilient modulus. The highest increase in the resilient modulus is observed using 0.3% fiber, so that the resilient modulus is increased by about 50% (from 2660 to 3963 MPa). The use of glass fibers also led to an increase in the resilient modulus, so that the resilient modulus of the samples containing 0.2% glass fiber reached over 3300 MPa. In this part of the research, we first compare the results of the present research with previous studies to determine how consistent the results with the previous research. It should be noted that the research on the basalt and glass fiber

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