Laboratory Manual for the Use of Students in Testing Materials of Construction
Laboratory Manual for the Use of Students in Testing Materials of Construction
L a Leslie Abram Waterbury
The book Laboratory Manual for the Use of Students in Testing Materials of Construction was written by author L a Leslie Abram Waterbury Here you can read free online of Laboratory Manual for the Use of Students in Testing Materials of Construction book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Laboratory Manual for the Use of Students in Testing Materials of Construction a good or bad book?
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IX, page 594. t The method here used is that given by Francis P. Smith, in the article noted in the preceding footnote. ig' 59- Briquette Mold for Asphalt 170 MATERIALS TESTING MANUAL to determine the percentage of material soluble in carbon disulphide, as explained in Problem Gi. Classify the samples as follows: Class i, asphalts containing over 96 per cent soluble matter and free from lumps of inert bitumen; Class 2, asphalts containing less than 96 per cent soluble matter Fig. 60. Ductility ...Machine and free from lumps of inert bitumen; Class 3, asphalts which are not homogeneous, i. E. , contain- ing lumps of hard bitumen which, although soluble in carbon disulphide, are insoluble in the softer bitumen, even in a molten condition. Asphalts coming under the first classification need no pre- liminary treatment. 371. To prepare asphalts of Class 2 for use, pro- ceed as follows: take a sufficient quantity of one material to yield 150 grams, after treatment. Treat the sample with carbon disulphide in an Erlenmeyer flask for 2 or 3 hours, shaking the flask occasionally until none of the asphalt adheres to the sides or bottom, after which it is to be set aside for 24 hours.
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