TRINIDAD AND BERMUDEZ ASPHALTS 



27 



Analysis of Asphalt Water 

 Specific gravity 1,017 • 15° C./15° 0. Eeaction strongly acid 



In 1 



CI 6.7757 



S0 3 5.5409 



S0 2 



.0467 



S 2 7 Traces 



H,,S Traces 



S Traces 



SiO, 06S8 



B 2 3 0117 



I 0008 



Br Trace 



P 2 5 None 



Na 6.5149 



kilogram 



NH, 4071 



K 3391 



Li 0271 



Ca 5280 



Mg 2666 



Fe 0720 



Al ' Trace 



Mn None 



C's and Rb None 



Organic 4901 



Oxygen 



21.0896 



The percentage of soluble mineral matter or salts as compared to 

 that of the bitumen is extremely small and unimportant, and plays no 

 part in the behavior of the material industrially, since the addition of 

 the same salts to other asphalts has been found to produce no perceptible 

 effect upon them. 



For many years Trinidad asphalt was supposed to contain a con- 

 siderable amount of organic matter not of a bituminous nature, but an 

 investigation conducted by me in 1908 showed that this really consists 



Photo, W. H. Rau, Pbilai 

 Road from Lake to Pier, Pier in Distance. 



