. Water & sewage works . election of material could bemade according to the traffic on any par-ticular street or the availability of anymaterial. The kinds of wood used werelong leaf pine, Xorway pine, tamarack,Douglas fir, western larch, white birch November, MACHINERY AND SUPPLIES 483 ami hcmlocU. The long leafpine was usoil to serve as astandard of coiuparison. Theconclusion was roacliod afterthe examination of the pave-ment, four years after it waslaid, was that the speciesused will be tentativelygrouped in accordance withthe result of this inspectionin order of their value forcreoso
. Water & sewage works . election of material could bemade according to the traffic on any par-ticular street or the availability of anymaterial. The kinds of wood used werelong leaf pine, Xorway pine, tamarack,Douglas fir, western larch, white birch November, MACHINERY AND SUPPLIES 483 ami hcmlocU. The long leafpine was usoil to serve as astandard of coiuparison. Theconclusion was roacliod afterthe examination of the pave-ment, four years after it waslaid, was that the speciesused will be tentativelygrouped in accordance withthe result of this inspectionin order of their value forcreosote oil paving materialsas follows: (1) Long leafpine; (2) Norway pine, whitebirch, tamarack, Eastern hem-lock: (3» Western larch; (4)Douglas fir. In the East, as a matter offact, the long leaf yellowpine block has been usedalmost entirely up to the present time,the principal exception being black , however, has not given entirely sat-isfactory results. Yellow pine stands upexceedingly well under end Laying Westrumite Pavements witha Chicago Concrete Mixer The following article gives a descrip-tion of the cold method construction ofasphaltic pavements in use In manycities. The asphaltic cement is known asWestrumite, and is manufactured by TheWestrumite Company at Whiting, Indi-ana, and by other companies at Washing-ton. D. C; Portland. Oregon; Brantford,Ontario; Antwerp, Belgium, and The photographs illustrate the use ofthe Chicago concrete mixer made by theChicago Concrete Machinery , Wisconsin, in the construc-tion of Westrumite pavements by Nejdl &Greenwald, contractors, at Whiting, Indi-ana. The mixer is used both in layinga concrete base and the 2-lnch Westru-mite wearing surface. The efficientcharging device and the revolving tubespout with which it isequipped greatly facilitatethe handling and spreadingof the material, and reducethe labor cost to a minimum. Westrumite is a highly effi-cient asphaltic cement manu-fact
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsewerage, bookyear191
