STRUCTURЕ FORMATION AND CONSUMER PROPERTIES OF GRANULAR ASPHALT-CONCRETE MIXTURES WITH PHOSPHOGYPSUM INCLUSION AND SECONDARY POLYETHYLENE TEREPHTHALATE
https://doi.org/10.33979/2073-7416-2023-105-1-123-132
Abstract
The effects of structure formation in disperse systems obtained by pelletizing in the manufacture of asphalt concrete mixtures with the inclusion of up to 30% phosphogypsum have been considered. In studying the physical-chemical and consumer properties of bitumen with polyethylene terephthalate additive they used the method of measuring the wetting edge angle. Microphotographs of modified binder make it possible to judge about the change of bitumen surface state. Thermal effects occurring as a result of modifying properties of such materials were registered. It was found that production of asphalt-concrete mixture by pelletizing provides high indicators of compressive strength of the hardened material. We found an increase in asphalt concrete water resistance at simultaneous introduction of polyethylene terephthalate and industrial waste phosphogypsum powder into the disperse system. Synergetic effect of the above additives on the achievement of positive effect of structure formation in asphalt-binding materials has been revealed, which reveals new prospects for their use in the production of construction works.
About the Authors
Alexey Al. Ignatyev
Yaroslavl State Technical University
Russian Federation
Russian Federation
Yaroslavl
Pavel B. Razgovorov
Yaroslavl State Technical University
Russian Federation
Russian Federation
Yaroslavl
Valery M. Gotovtsev
Yaroslavl State Technical University
Russian Federation
Russian Federation
Yaroslavl
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Review
For citations:
Ignatyev A.A., Razgovorov P.B., Gotovtsev V.M. STRUCTURЕ FORMATION AND CONSUMER PROPERTIES OF GRANULAR ASPHALT-CONCRETE MIXTURES WITH PHOSPHOGYPSUM INCLUSION AND SECONDARY POLYETHYLENE TEREPHTHALATE. Building and Reconstruction. 2023;1(1):123-132. (In Russ.) https://doi.org/10.33979/2073-7416-2023-105-1-123-132
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