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Figure 20. (a) The Jefferson Davis Memorial in Fairview, Kentucky,
constructed from 1917-1924, is 351 feet tall and constructed of
unreinforced concrete. The walls of the memorial are 8 feet thick at the
base and 2 feet thick at the top of the wall. Access to the monument
for investigation was provided by rappelling techniques, while ground
supported and suspended scaffolding was used to access the exterior during
repairs. (b) The concrete was severely deteriorated at isolated locations, with
spalling and damage from cyclic freezing and thawing of entrapped water.
In addition, previous repairs were at the end of their service life and removal
of deteriorated concrete and failed previous repairs was required. Light
duty chipping hammers were used to avoid damage to adjacent material
when removing deteriorated concrete to the level of sound concrete. (c)
Field samples were performed to match the color, finish, and texture of the
original concrete. A challenge in matching of historic concrete is achieving
variability of appearance. (d) The completed surface after repairs exhibits
intentional variability of the concrete surface to match the appearance of
the original concrete. Some formwork imperfections that would normally be
removed by finishing were intentionally left in place, to replicate the highly
variable finish of the original concrete. (e) The Jefferson Davis Memorial
after completion of repairs in 2004. Photo e: Joseph Lenzi, Senler, Campbell
& Associates, Inc.

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