A Practical Treatise on Roads, Streets, and PavementsVan Nostrand, 1876 - 258 pages |
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Page 23
... pounds . 32 to 50 pounds . 32 to 33 65 pounds . 46 pounds . 46 66 " " 140 to 147 pounds . 200 pounds . In order to apply these results in establishing suitable grades , take the case of the Macadamized road No. 4 , in which the tractive ...
... pounds . 32 to 50 pounds . 32 to 33 65 pounds . 46 pounds . 46 66 " " 140 to 147 pounds . 200 pounds . In order to apply these results in establishing suitable grades , take the case of the Macadamized road No. 4 , in which the tractive ...
Page 25
... pounds , the grade should be not greater than 1 perpendicular to 34 base ; and generally the proper grade for any kind of road , or the ratio of the verti- cal to the horizontal line , will be equal to the ratio between the force ...
... pounds , the grade should be not greater than 1 perpendicular to 34 base ; and generally the proper grade for any kind of road , or the ratio of the verti- cal to the horizontal line , will be equal to the ratio between the force ...
Page 28
... pounds upon a road with a gradient of 1 in 20 is 2500 √202 + 1 125 pounds nearly , and the normal 20 = 2496 . pressure upon the road - surface is 2500 × 202 + 1 These results are theoretical . They approximate to prac- tical ...
... pounds upon a road with a gradient of 1 in 20 is 2500 √202 + 1 125 pounds nearly , and the normal 20 = 2496 . pressure upon the road - surface is 2500 × 202 + 1 These results are theoretical . They approximate to prac- tical ...
Page 29
... pounds , loaded with 2000 pounds , at a speed of six feet per second , upon a level , dry , and clean gravel 2400 + 2000 2000 road , is 100 + + 6x13 172 pounds . 40 Mr. Law's Table of Dynamical Resistances . The following table ...
... pounds , loaded with 2000 pounds , at a speed of six feet per second , upon a level , dry , and clean gravel 2400 + 2000 2000 road , is 100 + + 6x13 172 pounds . 40 Mr. Law's Table of Dynamical Resistances . The following table ...
Page 72
... pound , fixed to a handle 18 inches long . The other hammer head weighs 2 pounds and may be 7 inches long , and has a handle 72 ROADS , STREETS , AND PAVEMENTS .
... pound , fixed to a handle 18 inches long . The other hammer head weighs 2 pounds and may be 7 inches long , and has a handle 72 ROADS , STREETS , AND PAVEMENTS .
Other editions - View all
PRAC TREATISE ON ROADS STREETS Quincy Adams 1825-1888 Gillmore,Making of America Project No preview available - 2016 |
Common terms and phrases
angle angle of repose asphalt asphalt pavement asphaltic cement asphaltum Basalt bituminous bottom bricks broken stone Broken stone road carriage catchwater drains centre cents clean Cloth coal tar cobble stones compacted constructed cost cross drains cubic yards depth drainage dust earth edge embankment Engineer Equivalent length excavated feet filled Force required grade gravel hard heavy horizontal horses Illustrated inches inches in thickness inches thick inclination iron joints kind laid length of level less level road lime load longitudinal Macadam Macadamized road maintenance mastic material method miles MILES PER HOUR mixture mortar necessary ordinary paved pavement placed Portland cement pounds practical Railroad rails railways rammer ramming repairs road bed road covering road surface road-covering roadway rock roller Rosendale rubble ruts Seyssel side ditches side gutters slope soil square stringers suitable tion tons top layer traffic transverse Val de Travers vehicles wagon wear wheels width wood
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Page 97 - All the irregularities of the upper part of the said pavement; are to be broken off by the hammer, and all the interslices to be filled with stone chips firmly wedged or packed by hand with a light hammer, so that when the whole pavement is finished there shall be a convexity of 4 inches in the breadth of 15 feet from the center.
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