(left to right): a) Barbed wire looped on rebar. b) Bag fabric rotted by UV on one side of medium fill sample and fill material removed to allow access to rebar. c) Vertical lines on plastered sample.

Contexts in source publication

Context 1

... were tamped with about 15-20 blows. A preformed loop of barbed wire was dropped over the rebar at one end and twisted around the rebar at the other ( Figure 2a). ...

Context 2

... samples were covered with tarps and left to dry unobserved for several months. When next inspected, the pulling cord used to tie the tarps had decayed from UV exposure, the samples had been fully exposed to the sun, and the bags on the south sides of both samples were also decayed (Figure 2b). Almost a 250 mm (10") length of fill material was removed from the top course of the medium fill sample (Figure 2b) and a rebar extension welded to the short rebar. ...

Context 3

... next inspected, the pulling cord used to tie the tarps had decayed from UV exposure, the samples had been fully exposed to the sun, and the bags on the south sides of both samples were also decayed (Figure 2b). Almost a 250 mm (10") length of fill material was removed from the top course of the medium fill sample (Figure 2b) and a rebar extension welded to the short rebar. The same fill soil was lightly dampened and tamped into place without a bag. ...

Context 4

... samples dried under a metal cover for two weeks before plastering, then for another two weeks before testing. Vertical lines were drawn on the plaster before testing (Figure 2d). ...