Method for determining a binder content of bituminous building m

Details Method for determining a binder content of bituminous building m Method for determining a binder content of bituminous building m

1991-10-04

1994-01-18

Housel, James C.

Chemistry: analytical and immunological testing

Hydrocarbon

73 6146, 208 41, 436155, 436160, G01N 504

Patent

active

052799719

ABSTRACT:
A method of determining the binder content of bituminous building material including a mixture of a mineralic constituent, a bituminous binder and moisture comprises the steps of: preparing a sample of the material, heating the sample to a temperature between 300.degree. to 550.degree. C. to thermally remove the moisture and the binder without substantially decomposing the other constituents of the mixture, cooling the sample to ambient temperature after the thermal removal of the binder and before subsequently weighing the sample, generating during the heating step a curve which reflects total weight loss of the sample in relation to time, ending the heating step when the curve shows that removal of the moisture and decomposition of the binder has substantially ended, taking from the curve a break point which shows up to which time the weight loss is substantially due to the removal of moisture from the sample and from which time the weight loss is substantially due to a decomposition of the binder, determining the binder content of the sample from the difference between the total weight loss of the sample and the weight loss of the sample at the break point.

REFERENCES:
patent: 1967424 (1934-07-01), Nevitt
patent: 2679159 (1954-05-01), Messer
patent: 3453083 (1966-04-01), Beerli
patent: 4054506 (1977-10-01), Hart et al.
patent: 4412007 (1983-10-01), Yong et al.
patent: 5081046 (1992-01-01), Schneider
Encyclopedia of Polymer Science and Technology: Plastics, Resins, Rubbers, Fibers vol. 14, 1971 by John Wiley & Sons, Inc. pp. 1-5.

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