Street Pavements and Paving Materials: A Manual of City Pavements, the Methods and Materials of Their ConstructionJ. Wiley & Sons, 1901 - 555 páginas |
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Página 11
... passing over them . In 1761-2 an act was passed “ Regu- lating , pitching , paving and cleansing the highways , streets , lanes , and alleys & c within the settled parts of Philadelphia . " Curbstones were first adopted in 1786 ...
... passing over them . In 1761-2 an act was passed “ Regu- lating , pitching , paving and cleansing the highways , streets , lanes , and alleys & c within the settled parts of Philadelphia . " Curbstones were first adopted in 1786 ...
Página 43
... pass by insensible degrees and through natural causes into maltha , which is a semi- fluid viscous form of bitumen , known as mineral tar and just as clearly to be distinguished in consistence from petroleum as com- mon tar is to be ...
... pass by insensible degrees and through natural causes into maltha , which is a semi- fluid viscous form of bitumen , known as mineral tar and just as clearly to be distinguished in consistence from petroleum as com- mon tar is to be ...
Página 44
... passes by insensible gradations into pitt asphalt or maltha ( viscid bitumen ) , and the latter as insensibly into asphalt or solid bitumen . Prof. Peckham on visiting California in 1865 witnessed all the natural phenomena attending the ...
... passes by insensible gradations into pitt asphalt or maltha ( viscid bitumen ) , and the latter as insensibly into asphalt or solid bitumen . Prof. Peckham on visiting California in 1865 witnessed all the natural phenomena attending the ...
Página 52
... passing the decanted solvents through a Gooch cruci- ble with heavy asbestos felt . The filtrate in the case of the bi- sulphide extract is allowed to settle for 24 hours , again decanted , and any fine sediment that passes the filter ...
... passing the decanted solvents through a Gooch cruci- ble with heavy asbestos felt . The filtrate in the case of the bi- sulphide extract is allowed to settle for 24 hours , again decanted , and any fine sediment that passes the filter ...
Página 67
... as subterranean water follows any previous stratum con- fined by beds of clay or rock , and that fissures in the overlying strata have allowed the vapor to pass to other strata. FIG . 1. - POSSIBLE FORMATION OF ROCK ASPHALT . ASPHALT . 67.
... as subterranean water follows any previous stratum con- fined by beds of clay or rock , and that fissures in the overlying strata have allowed the vapor to pass to other strata. FIG . 1. - POSSIBLE FORMATION OF ROCK ASPHALT . ASPHALT . 67.
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Términos y frases comunes
abutting prop Alumina amount asphalt pavement asphaltene asphaltic cement average binder bitumen bituminous rock blocks brick pavement broken stone Brooklyn carbon cent centre City Engineer clay clean coal-tar cobblestone construction contract contractor cost course creosote cubic yard curb depth durable entire erty owners expense feet wide feldspar filled foundation grade granite gravel grooved rail grout gutter hard heat hornblende inches inches deep inches thick inches wide iron joints laid less lime limestone macadam ment method miles mineral mixed mixture mortar obtained oxide paving material paving-brick paving-cement petroleum placed Portland cement practically proper quantity quartz rail rammed repairs road roadway rock asphalt roller rolling sand sandstone screenings shows sidewalk Silica smooth specific gravity square yard street street-car strength subgrade TABLE temperature tion track traffic trap-rock vary wearing surface width wood pavements York York City
Pasajes populares
Página 402 - All loss or damage arising out of the nature of the work to be done under this agreement, or from any unforeseen obstructions or difficulties which may be encountered in the prosecution of the same...
Página 412 - ... authorities, and •whenever required by them to do so, and in such manner as they may prescribe. In the case of neglect of any corpo-ration to make these pavements or repairs after the expiration of thirty days' notice to do so, the local authorities may make same at the expense of such corporation." The street-car companies, however, have not always lived up to this requirement, and it was stated in a paper read before the American Society of Civil Engineers in December, 1896, that bills aggregating...
Página 412 - Every street surface railroad corporation so long as it shall continue to use any of its tracks in any street, avenue or public place in any city or village shall have and keep in permanent repair that portion of such street, avenue or public place between its tracks, the rails of its tracks, and two feet in width outside of its tracks, under the supervision of the proper local authorities, and whenever required by them to do so, and in such manner as they may prescribe. In case of the neglect of...