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DS-65 closeup. This photo shows a cross section of timber where it has broken inside the concrete that it was embedded in. Sheets of neoprene can be seen on either side of the timber. The break is clean, without jagged edges.
DS-65. This photo shows a cross section of timber that has been snapped in two pieces. The break appears clean. Though the edges of the break are jagged, there are no splintered ends.
Grade 1D closeup. This photo shows a cross section of timber where it has broken inside the concrete that it was embedded in. Sheets of neoprene can be seen on either side of the timber. The break is uneven and jagged. The wood has splintered in several places.
Grade 1D. This photo shows a cross section of timber that has been snapped in two pieces. The break is somewhat clean, though jagged and splintered. The jagged pieces are elongated and smooth.
Grade 1 closeup. This photo shows a cross section of timber where it has broken inside the concrete that it was embedded in. Sheets of neoprene can be seen on either side of the timber. The break is uneven and jagged. The wood has splintered in several places.
Grade 1. This photo shows a cross section of timber that has been snapped in two pieces. The break is rarely clean, appearing jagged and splintered. The jagged pieces are small and compact.
FHWA-HRT-05-096
