Street Pavements and Paving Materials: A Manual of City Pavements : the Methods and Materials of Their Construction |
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Page 14
... varying in their propor- tions and structure . The minerals forming these rocks are generally considered as being divided into essential parts and characterizing and micro- scopic accessories . These terms are self - explanatory , the ...
... varying in their propor- tions and structure . The minerals forming these rocks are generally considered as being divided into essential parts and characterizing and micro- scopic accessories . These terms are self - explanatory , the ...
Page 15
... varies considerably . It is practically indestruc- tible by the forces of nature , which accounts for its forming so large ... vary in hardness and color , and when they are in appreciable quantities they have an important bearing on the ...
... varies considerably . It is practically indestruc- tible by the forces of nature , which accounts for its forming so large ... vary in hardness and color , and when they are in appreciable quantities they have an important bearing on the ...
Page 17
... moisture , two agents that are constantly at work to destroy all minerals . Granite is divided into varieties according to the presence of its varying accessories . Muscovite granite is so called from the mica being of STONE . 17.
... moisture , two agents that are constantly at work to destroy all minerals . Granite is divided into varieties according to the presence of its varying accessories . Muscovite granite is so called from the mica being of STONE . 17.
Page 18
... varies from light to dark according to the quantity of mica or the color of the feldspar . This class of stone is often red , owing to the red feldspar . As a rule the stone is hard and tough . Good samples of it are found at Westerly ...
... varies from light to dark according to the quantity of mica or the color of the feldspar . This class of stone is often red , owing to the red feldspar . As a rule the stone is hard and tough . Good samples of it are found at Westerly ...
Page 19
... varying considerably in its composition , but made up principally of silicate of magnesium and calcium , with some alumina and iron . It has its cleavage in two planes and is easily brought to a fine polish . In 1787 Werner adopted the ...
... varying considerably in its composition , but made up principally of silicate of magnesium and calcium , with some alumina and iron . It has its cleavage in two planes and is easily brought to a fine polish . In 1787 Werner adopted the ...
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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.