Test Set-Up and Procedure

 Specimens 1 and 2 were tested in a simply supported four-point bending

configuration. The span length was 18 ft and the loads were applied 6 ft from each

support (see Fig. 5-7 and 5-8). Specimen 3 was also tested in a simply supported four-

point bending configuration with loads applied at third points (see Fig. 5-9). However,

the instrumentation for specimen 3 was different than the instrumentation of specimens 1

and 2 (see Fig. 5-9).


Figure 5-6. Placement of concrete (specimen 1)

 Actuator 1 Actuator 2
 DlI D10 D9 D8 D7 D6 D5 D4 D3

 t ( |Emt Et C


D2 D1


 II -I I
 South North
 Support LVDT Support


Figure 5-7. Schematic of test set up for specimen 1