Evening Republican, Volume 22, Number 34, Rensselaer, Jasper County, 10 February 1919 — Preventing Cracks in Pavements. [ARTICLE]

Preventing Cracks in Pavements.

At a recent meeting of the American Society for Municipal Improvements held at Buffalo, an interesting paper was read on frost-proof foundations for hard-surfaced, pavements, in which it was suggested that the sub-grade should be laid with a course of hollow tile of say four-inch height, overlaid with a foundation of two to four inches of concrete. On this, the paving material may be laid. The tile acts as a non-conductor of heat, preventing the frost from penetrating to the sub-grade and also acts as a drain for moisture. Should frost reach the sub-grade, the tile will break under the pressure and to Insure its breaking. the ti Ie may be scored at the bot* tom. The overlying concrete will bridge the breaks in the hollow tile. This will prevent upheavals of the pavement.—Scientific American.