Optimization of Temperatures of Hashing Asphaltic Concrete Mixes Taking into Account the Structural Type of Bitumen


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Researches by definition of optimum temperatures at hashing asphaltic concrete mixes on bitumens of different structural types with application of a method of mathematical designing of experiments are presented. Varied factors at manufacturing asphaltic concrete mixes were an index of a penetration of bitumen as the characteristic of a structural type of bitumen, the maintenance of bitumen and temperature of hashing of mixes. Processing of results of experiment is executed with application of computer technologies by means of a package of applied programs Maple. Mathematical models of physicomechanical properties of asphaltic concretes in the form of the equations the regressions reflective link between investigated properties of asphaltic concretes and varied factors are received. It is determined that at reduction of an index of a penetration and a rise of temperature of mixing strength of an asphaltic concrete increases. At a rise of temperature of hashing and increas asphalt content in mixes the water-resistance of an asphaltic concrete increases. On extreme dependences of indicators of durability at a tensioning and a tension in bending from hashing temperature optimum temperatures of hashing asphaltic concrete mixes are defined. It is established that optimum temperatures of hashing depends on an index of a penetration of bitumen and raise at its reduction.



Edited by:

Dr. Denis Solovev




V.D. Galdina and N.S. Galdin, "Optimization of Temperatures of Hashing Asphaltic Concrete Mixes Taking into Account the Structural Type of Bitumen", Materials Science Forum, Vol. 945, pp. 226-232, 2019

Online since:

February 2019




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