Street Pavements and Paving Materials: A Manual of City Pavements : the Methods and Materials of Their Construction |
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Page 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 ...
Page 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 ...
Page 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 ...
Page 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 ...
Page 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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Common terms and phrases
abutting prop Alumina amount asphalt pavement asphaltene asphaltic cement average binder bitumen bituminous rock blocks brick pavement broken stone Brooklyn carbon cent centre chemical City Engineer clay clean coal-tar cobblestone condition 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 Large 12mo 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 rolling sand sandstone screenings shows sidewalk Silica smooth specific gravity square inch square yard street street-car strength subgrade TABLE temperature tion track traffic trap-rock wearing surface width York York City
Popular passages
Page 418 - ... any improper materials used in its construction, or by or on account of any act or omission of the said Contractor or his agents...
Page 539 - Factories 16mo, mor. 1 50 * Muir's History of Chemical Theories and Laws 8vo, 4 00 Mulliken's General Method for the Identification of Pure Organic Compounds. VoL I. Compounds of Carbon with Hydrogen and Oxygen. Large 8vo, 5 00 Vol. II. Nitrogenous Compounds. (In Preparation.) Vol. III. The Commercial Dyestuffs Large 8vo, 5 00 * Nelson's Analysis of Drugs and Medicines 12mo, 3 00 Ostwald's Conversations on Chemistry.