their bearingvalue. Subgrade failures have occurred in many partsof the country where drainage was employed, but in viewof the fact that in the cities very heavy traffic is suc-cessfully supported on light section pavements, the con-clusion is arrived at that the drainage of our roads inmany cases… … Fig 19 il view of < m tructioti for road drainage U i( ideas underlying these tests are illustrated in Fig. 18.Subgrade Drainage The idea occurred to the officials in charge of thetests to try whether it was not possible to exclude waterfrom the subgrade by the use of water proofing mate-rials.…
Automobiles · Aeronautics
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
