The actual test set-up with all the instrumentation placed at the appropriate

locations is depicted in Fig. 4-10.























Figure 4-10. Test set-up for both beams before testing

Results and Discussion

Cylinder tests

 The cylinders were tested on the same day as the beams. A total of 8 cylinders were

tested using a cylinder tester. All cylinders tested were capped using a sulfur cement cap

at each end to uniformly distribute the load from the loading head to the concrete

cylinder.

 Table 4-2 contains the results from the cylinder tests. The average compression

strength for the cylinders tested was 6.06 ksi and the coefficient of variance was 2.3%.

Typical cylinder types of fracture were: (a) cone and (b) cone and shear. The low

coefficient of variance was an indication of strength consistency of the concrete.