Waterproofing Engineering for Engineers, Architects, Builders, Roofers and Waterproofers

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John Wiley & sons, Incorporated, 1919 - Waterproofing - 442 pages
 

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Page 149 - Natural cements are produced by burning a naturally impure limestone, containing from 15 to 40 per cent of silica, alumina, and iron oxide, at a comparatively low temperature, about that of ordinary lime burning. The operation can therefore be carried on in a kiln closely resembling an ordinary lime kiln.
Page 272 - The sample shall be a fair average of the shipment. Three per cent of the packages shall be sampled. The sample shall be taken from the surface to the center of the package. A 2-lb.
Page 217 - The upper surface of the cover should burn clear, but the under surface should remain covered with carbon. To find Volatile Combustible Matter, subtract the per cent.
Page 414 - Blown Petroleums. — Semi-solid or solid products produced primarily by the action of air upon liquid native bitumens which are heated during the blowing process.
Page 199 - Apply the heat in such a manner that the temperature of the water is raised 5° C.
Page 413 - The components of the bitumen in petroleums, petroleum products, malthas, asphalt cements and solid native bitumens, which are soluble in carbon disulphide but insoluble in carbon tetrachloride.
Page 413 - Solid or semi-solid native bitumens, solid or semisolid bitumens obtained by refining petroleum, or solid or semi-solid bitumens which are combinations of the bitumens mentioned with petroleums or derivatives thereof, which melt upon the application of heat and which consist of a mixture of hydrocarbons and their derivatives of complex structure, largely cyclic and bridge compounds.
Page 416 - Fixed Carbon. — The organic matter of the residual coke obtained upon burning hydrocarbon products in a covered vessel in the absence of free oxygen.
Page 199 - ... that the thermometer registers an increase of 5° C. per minute. The temperature at which the bitumen touches a piece of paper placed in the bottom of the beaker is taken as the melting point. Determinations made in the manner described should not vary more than 2° for different tests of the same material.
Page 195 - ... particles. Not more than one-half of the total amount of naphtha required should be used until the sample is entirely broken up. The balance of the 100 cc.

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