Evening Republican, Volume 16, Number 78, Rensselaer, Jasper County, 30 March 1912 — Dust Laying on Macadam Road. [ARTICLE]

Dust Laying on Macadam Road.

With the growing use of automobiles the problem of the suppression of dust on highways is given a new importance, says Good Roads Magazine. It is claimed that the rapid pace of these vehicles, together with the vortex set up by the fans, are responsible for the great clouds of dust which arise, making travelling both unpleasant and dangerous. Among the most common remedies used is that of sprinkling the road with waT ter. Water, however, it is claimed acts as a solvent on the surface of the road, creating mud which shortly becomes dust when dried out Many experiments have been made with petroleum and other liquids which, although .Mting r flimU|m .to vratteCi. evaporate more slowly. Among the remedies that have recently been successfully tried is that of a preparation of coal tar known as Tarvia, the outgrowth of various experiments in this country and abroad. It is stated by the manufacturers that the use of this material improves the wearing quality of macadam roads. It is *lso claimed that on hills, where the drainage of storms causes the road to ravel out, this preparation is especially valuable. A tarviated road haa a roof off which the water runs without penetrating. Among the ■ places which have made considerable use of this material is the city of Montclair, N. J., and the superintendent of roads and sewers of that city reports that a tarviated road even after fifteen months of use is not injured by water, wind or heat, and the use of Tarvia in city is being rapidly extended. The preparation has been used on heavy grades, where practically the entire output of a large stone crushing plant passes over It, making a severe test, it being stated that after three months’ use nothing has developed to indicate that even under these conditions it will not give equally good results. The walks and drives of the new park will be treated with Tarvia. ,