Highway Construction in Wisconsinstate, 1903 - 339 pages |
Other editions - View all
Highway Construction in Wisconsin (Classic Reprint) Ernest Robertson Buckley No preview available - 2015 |
Highway Construction in Wisconsin Ernest Robertson Buckley,Wisconsin Geological & Natural History No preview available - 2015 |
Common terms and phrases
areas of humus asphalt pavement avenue boulders broken stone pavements BULLETIN calcite cedar block pavement cent city engineer clay clayey loams clean coal tar concrete foundation condition consists county is located county is underlain crushed stone curb and gutter deposits driftless area durable feet field stone Galena Galesburg grade granite granite and trap granite blocks granite or trap gravel highways HIST humus soils igneous rocks inches joints laid Lake lime limestone limestone macadam loams macadam pavements maintenance material ment miles Milwaukee minerals muck and peat northwestern obtained occur outcrops Peters sandstone portion portland cement Potsdam quarry quartzite Redgranite repairing residence streets rhyolite ridges river road metal rolling sand and gravel sandstone sandy loam shale Sheboygan showing streets paved sidewalks square yard stone block subsoil surface SURVEY thickness tion traffic trap rock vitrified vitrified brick wear width WISCONSIN GEOL wooden block
Popular passages
Page 104 - The roads can never be rendered thus perfectly secure, until the following principles be fully understood, admitted, and acted upon: namely, that it is the native soil which really supports the weight of traffic : that while it is preserved in a dry state, it will carry any weight without sinking...
Page 80 - The paved spaces on each side of the 18 middle' feet are to be coated with broken stones or well cleansed, strong gravel, up to the footpath or other boundary of the' road so as to make the whole convexity of the road 6 inches from the center to the sides of it.
Page 40 - For convenience all minerals are referred to a scale of hardness of ten units, composed of common or well known minerals, which are as follows: (1) talc; (2) gypsum; (3) calcite; (4) fluorite; (5) apatite; (6) orthoclase; (7) quartz; (8) topaz; (9) sapphire; and (10) diamond.
Page 9 - ... it in a dry state. Few persons are aware of the extent to which a road may be injured by high hedges, or lines of trees. Trees are worse than hedges, because they not only deprive the road of the action of the air and sun, but...
Page 44 - The olivine group is now more correctly known as the chrysolite group. The different species differ somewhat in composition, being composed of varying proportions of magnesium, calcium, iron, and manganese, in combination with silicon and oxygen. The hardness ranges from 6 to 7. The predominant color is what is commonly known as olive green. The luster is vitreous. Olivine is a constituent, mainly, of the more basic igneous rocks, such as diabase and gabbro. It alters very extensively to chlorite,...
Page 80 - The paved spaces on each side of the eighteen middle feet, are to be coated with broken stones, or well cleansed strong gravel, up to the foot-path or other boundary of the road, so as to make the whole convexity of the road six inches from the centre to the sides of it.
Page 190 - Both the residence and business streets should be improved with permanent pavements. It may be advisable to pave the business streets with vitrified brick or granite blocks, but the residence streets should be paved with the much less expensive macadam. The sidewalks are constructed largely out of plank, very little cement or flag stone having been thus far used.
Page 104 - ... on roads of steeper gradients. For instance, he adduces as a fact not generally known, that if a road has no greater inclinations than 1 in 40, there is 20 per cent, less cost for maintenance than for a road having an inclination of 1 in 20. The additional cost is due not only to the greater injury by the action of horses...
Page 286 - The machine shall consist of one or more hollow iron cylinders; closed at one end and furnished with a tightly fitting iron cover at the other; the cylinders to be 20 cm. in diameter and 34 cm. in depth, inside. These cylinders...
Page 46 - The hardness is 5.5 to 6.5. Magnetite is one of the commonest constituents of the igneous and metamorphic rocks, and is most often present in small grains or crystals scarcely visible to the naked eye. When present in larger individuals it is easily recognized by its brilliant...