Street Pavements and Paving Materials: A Manual of City Pavements : the Methods and Materials of Their ConstructionJohn Wiley & Sons, 1900 - 532 páginas |
Dentro del libro
Resultados 1-5 de 86
Página 18
... caused by pressure before the rock was consolidated . The rift is always perpendicular to the line of pressure . When a stone is resting upon a face parallel to its cleavage plane it is said to be lying on its bed , and the face at ...
... caused by pressure before the rock was consolidated . The rift is always perpendicular to the line of pressure . When a stone is resting upon a face parallel to its cleavage plane it is said to be lying on its bed , and the face at ...
Página 19
... caused by the greater por- tion of its mica being gathered in parallel planes so that the stone is easily broken along these planes . This is purely a physical dif- ference , as chemically and mineralogically it is the same as granite ...
... caused by the greater por- tion of its mica being gathered in parallel planes so that the stone is easily broken along these planes . This is purely a physical dif- ference , as chemically and mineralogically it is the same as granite ...
Página 28
... caused by great pressure , partial solution , fusion of some of its own parts , or by the infiltration of some cementing material , such as silica lime , or the oxides of iron . It is generally found in layers of variable thickness ...
... caused by great pressure , partial solution , fusion of some of its own parts , or by the infiltration of some cementing material , such as silica lime , or the oxides of iron . It is generally found in layers of variable thickness ...
Página 35
... cause become too much for the absorption of the marine animals , it would be precipitated , and would form around the fragments , which , being in motion , would become ap- proximately spherical in shape . But as the precipitation ...
... cause become too much for the absorption of the marine animals , it would be precipitated , and would form around the fragments , which , being in motion , would become ap- proximately spherical in shape . But as the precipitation ...
Página 43
... 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 distinguished from olive - oil . I have found the ...
... 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 distinguished from olive - oil . I have found the ...
Otras ediciones - Ver todas
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 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
Pasajes populares
Página 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...
Página 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.