. Water & sewage works . ere doubt-ful, has produced results only comparablewith those produced in the brick pavingfield by Cleveland and Cuyahoga county,Ohio, where equally valuable results areto be seen in another most importantbranch of the paving industry. A machine has been devised in Detroitfor the testing of pavements which hasmuch promise and by producing a con-centration of wear will shorten the neces- THE Paving Determinator which isdesigned to duplicate traffic condi-tions and u-ith which efforts are beingmade to determine the value of differentmaterials, methods and designs. The ma
. Water & sewage works . ere doubt-ful, has produced results only comparablewith those produced in the brick pavingfield by Cleveland and Cuyahoga county,Ohio, where equally valuable results areto be seen in another most importantbranch of the paving industry. A machine has been devised in Detroitfor the testing of pavements which hasmuch promise and by producing a con-centration of wear will shorten the neces- THE Paving Determinator which isdesigned to duplicate traffic condi-tions and u-ith which efforts are beingmade to determine the value of differentmaterials, methods and designs. The machine consists of two heavysteel discs of the diameter of a wagonwheel, set at the ends of a horizontalaxis, which revolves about a vertical axisat its middle point. The discs, havingthe width of an ordinary wagon tire, rep-resent the wear of such tires on the sur-face over which they travel. Attached toeach of these discs are three or more flatdiscs with calks on them, which repre-sent the bottom of a horses foot, which. CONSTRUCTING REINFORCED CONCRETE PAVEMENT, Detroit. Mich. Note re-inforcement in place, concrete mixer with boom and traveling bucket, placing firstlayer of concrete. Protection for joint in place at the right. sary period of observation and thus giveinformation regarding the effect of anymodification of construction on wearingqualities within a few days, which couldbe obtained on the road only after monthsor even years of study. This machinewas devised to test the paving materialsin use in the city and is the product ofthe ingenuity of the city boiler inspector,John C. McCabe. He was called upon bythe mayor to make an investigation of thequality of the paving materials used inthe city, more particularly the variouskinds of brick in use. and he was not sat-isfied that the standard tests for the adop-tion of brick for new construction wouldgive him the information he desired. strike the pavement surface in a mannersomewhat similar to a horse travelingover it. T
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsewerage, bookyear191
