Pipe #2. The second pipe tested was a 10" diameter, HDPE specimen. The test was performed with a 3' cover of soil. The pipe specimen was mounted in the test boxes with the end couplings outside the boxes and shimmed to the ends of the boxes. The move-able test box was pushed four feet, forcing the pipe into bending and tension, as in the first three pipe tests.
For a video of T4, click here. Other videos are in the video gallery.
T5 was a repeat of T4 as a demonstration for our Workshop.