Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, Comstock · leaf 73
hapedas shown in the figure is dropped, striking successive blows as thehole is filled. In this manner the concrete is forced and tampedcompactly into the hole, and spread out at the bottom as indicatedin the figure at (ly) ; so that if the earth were excavated fromaround the concrete pier, the… … I «.
Building · Carpentry · Masonry
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.