ASTM C 1609 TEST RESULTS FOR THE TH 63 PROJECT

Grace Fiber

Five beams were tested for Grace fibers after 28 days of curing at 95% relative humidity and 70oF temperature. Photographs taken during the testing of these beams are provided in Figure 1. Figure 2 shows the photographs of fractured faces the tested beams. The load vs displacement curves and the ASTM C 1609 test results are provided in Figure 3 and Table 1, respectively.

(a) Grace Sample 1 (b) Grace Sample 2

(c)Grace Sample 3 (d) Grace Sample 4

(e) Grace Sample 5

Figure 1: Photographs of the five beams prepared with Grace Fiber.

(a) Grace Sample 1

(b) Grace Sample 2

(c) Grace Sample 3

(d) Grace Sample 4

(e) Grace Sample 5

Figure 2: Photographs of the fractured faces of five beams prepared Grace fibers.

Figure 3: ASTM C 1609 load-displacement curves for the beams prepared with Grace fibers.

Table 1: ASTM C 1609 test results for the beams prepared with Grace Fibers.

Sample No. Modulus of Rupture (psi)

Residual strength (psi)

Residual strength ratio (%) at span/150

Average fiber count of the fractured face

Grace Sample 1 730 51 7 40.5Grace Sample 2 830 33 4 20.5Grace Sample 3 740 44 6 33.5Grace Sample 4 780 70 9 35.5Grace Sample 5 772 39 5 35

GRT Fiber

Four beams were tested for GRT fibers after 28 days of curing at 95% relative humidity and 70oF temperature. Photographs taken during the testing of these beams are provided in Figure 4. Figure 5 shows the photographs of fractured faces the tested beams. The load vs displacement curves and the ASTM C 1609 test results are provided in Figure 6 and Table 2, respectively.

(a) GRT Sample 1 (b) GRT Sample 2

(c) GRT Sample 3 (d) GRT Sample 1

Figure 4: Photographs of the four beams prepared with GRT Fiber.

(a) GRT Sample 1

(a) GRT Sample 2

(a) GRT Sample 3

(a) GRT Sample 4

Figure 5: Photographs of the fractured faces of four beams prepared with GRT Fiber.

Figure 6: ASTM C 1609 load-displacement curves for the beams prepared with GRT fibers.

Table 2: ASTM C 1609 test results for the beams prepared with GRT Fibers.

Sample No. Modulus of Rupture (psi)

Residual strength (psi)

Residual strength ratio (%) at span/150

Average fiber count of the fractured face

Grace Sample 1 570 130 22.6 54Grace Sample 2 585 80 13.6 43.5Grace Sample 3 610 67 11 57.5Grace Sample 4 640 9 8.7 45

Forta Fibers

Four beams were tested for forta fibers after 28 days of curing at 95% relative humidity and 70oF temperature. Photographs taken during the testing of these beams are provided in Figure 7. Figure 8 shows the photographs of fractured faces the tested beams. The load vs displacement curves and the ASTM C 1609 test results are provided in Figure 9 and Table 3, respectively.

Figure 7: Photographs of the four beams prepared with forta Fiber.

(a) Forta Sample 1

(b) Forta Sample 2

(c) Forta Sample 3

(d) Forta Sample 4

Figure 8: Photographs of the fractured faces of four beams prepared with Forta Fiber.

Figure 9: ASTM C 1609 load-displacement curves for the beams prepared with Forta fibers.

Table 3: ASTM C 1609 test results for the beams prepared with Forta* Fibers.

Sample No. Modulus of Rupture (psi)

Residual strength (psi)

Residual strength ratio (%) at span/150

Forta Sample 1 675 128 19Forta Sample 2 730 110 15Forta Sample 3 682 164 24Forta Sample 4 725 160 22

*Fibers could not be counted.

ASTM C 1609 TEST RESULTS FOR FRC ROUNDABOUT PROJECT

Four beams were tested for this project. All the beams were tested after 28 days of curing at 95% relative humidity and 70oF temperature. Photographs taken during the testing of these beams are provided in Figure 10. Figure 11 shows the photographs of fractured faces the tested beams. The load vs displacement curves and the ASTM C 1609 test results are provided in Figure 12 and Table 4, respectively.

Figure 10: Photographs of the four beams for FRC roundabout project.

(a) FRC Roundabout Sample 1

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(b) FRC Roundabout Sample 2

(c) FRC Roundabout Sample 3

(d) FRC Roundabout Sample 4

Figure 11: Photographs of the fractured faces of four beams prepared for the FRC roundabout project.

Figure 12: ASTM C 1609 load-displacement curves for the beams prepared in FRC roundabout project.

Table 4: ASTM C 1609 test results for the beams prepared for the FRC roundabout project.

Sample No. Modulus of Rupture (psi)

Residual strength (psi)

Residual strength ratio (%) at span/150

Sample 1 594 143 24Sample 2 594 60 10Sample 3 573 97 17Sample 4 594 214 36

*Fibers could not be counted.