. Canadian engineer. cticallv all the sand and stone at \Vaterdown,Oakville and Port Credit were unloaded by locomotivecranes with clam-shell buckets and were hauled to the roadway by the locomotives and dump cars on the narrow-gauge track. The materials at Port Nelson were unloadedby hand and hauled by dinkey and dump cars. Thematerials at Gooderham Siding were unloaded by handinto dump cars, but the dump cars were hauled on theindustrial railway by teams. Usually solid of sandor stone were hauled. Where the concrete was i8 feet in width one dump ofsand and two of stone met the requir
. Canadian engineer. cticallv all the sand and stone at \Vaterdown,Oakville and Port Credit were unloaded by locomotivecranes with clam-shell buckets and were hauled to the roadway by the locomotives and dump cars on the narrow-gauge track. The materials at Port Nelson were unloadedby hand and hauled by dinkey and dump cars. Thematerials at Gooderham Siding were unloaded by handinto dump cars, but the dump cars were hauled on theindustrial railway by teams. Usually solid of sandor stone were hauled. Where the concrete was i8 feet in width one dump ofsand and two of stone met the requirements exactly. Thetrack was first laid to the north of the centre line of thehighway, one dump of sand and one of stone made; thetrack then shifted to the top of the stone pile and thesecond dump of stone made. As a rule, the cement wasdelivered after the track had been shifted to the top ofthe row of stone. In addition to any economy that industrial railwaysmay effect in actual transportation they are desirable be-. Finishing Pavement from Steel Bridge—Span. 50 Pavement from Bridge—Span, IS ft. Steel Forms and Form Set-up to Support FeltExpansion Joint. February ^4, 1916. THE CANADIAN ENGINEER 283 cause they avoid any necessity for disturbing the subgradeafter it has been prepared for the concrete. For a limited period three mixers were supplied fromthe Oakville yard. Two locomotives were used and theoutfits worked double shifts. Tin- sand and stone wereshovelled from the subgrade into wheelbarrows anddumped into the skip of the mixer. Most of the water required was pumped from LakeOntario and distributed through a two-inch pipe line. Steel side forms have been used for practically all ofthe work so far except for the special work in have proven very satisfactory. Proportioning has been done by wheelbarrow mea-surement, a wheelbarrow load having been established bymeasuring boxes. The concrete remained in the drum forat least 45 seconds and was
Size: 2130px × 1173px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, bookidcanadianengineer30toro
