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 29
... complete formation the rock may be said to have entered upon a new era in its his- tory . When the cement is ... completing the rock by a regular growth , Red sandstones are sometimes found to be easily disintegrated on account of the ...
... complete formation the rock may be said to have entered upon a new era in its his- tory . When the cement is ... completing the rock by a regular growth , Red sandstones are sometimes found to be easily disintegrated on account of the ...
Página 52
... complete a solvent unless used hot . " Prof. Sadtler uses acetone to extract the petrolene , and chloro- form for the asphaltene , giving as a reason that they can be had perfectly pure and are not alterable , so that they possess ...
... complete a solvent unless used hot . " Prof. Sadtler uses acetone to extract the petrolene , and chloro- form for the asphaltene , giving as a reason that they can be had perfectly pure and are not alterable , so that they possess ...
Página 55
... complete analysis of a well - known asphalt and compare these results with those obtained from the new specimen when the same materials were used . In this way reliable comparisons ought to be made . The chemist should not confine ...
... complete analysis of a well - known asphalt and compare these results with those obtained from the new specimen when the same materials were used . In this way reliable comparisons ought to be made . The chemist should not confine ...
Página 64
... complete success . In several places asphalt is produced from the crude petroleum . oil . The ordinary method is to pump the oil and accompanying water from the wells into tanks where it is heated by steam - coils to a temperature of ...
... complete success . In several places asphalt is produced from the crude petroleum . oil . The ordinary method is to pump the oil and accompanying water from the wells into tanks where it is heated by steam - coils to a temperature of ...
Página 86
... whole , but not that the fusion has been made complete and the entire mass brought to a semi - liquid condition . In some clays the character of the material is such that the proper chemical 86 STREET PAVEMENTS AND PAVING MATERIALS .
... whole , but not that the fusion has been made complete and the entire mass brought to a semi - liquid condition . In some clays the character of the material is such that the proper chemical 86 STREET PAVEMENTS AND PAVING MATERIALS .
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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...