Evening Republican, Volume 59, Number 70, Rensselaer, Jasper County, 13 April 1917 — For Protection of Bridges. [ARTICLE]

For Protection of Bridges.

To prevent loss of metal due to th« rutting action oi locomotive blasts, asbestos sheathing has been used by the Western and Atlantic railroad on its bridges* The loss of metal- is caused principally by the blast rather than by corrosion or effect of gas. Instead of using brass bolts as first planned for all cases of expbsed heads below the sheets, a satisfactory protection was obtained by using one-third pbrtland cement mortar and asbestos! fiber, placed as a hemispherical covering over bolt heads by using a cup-shaped form in a small block; The jx>lt protection has remained iar tact ,