Search academic texts

Information × Registration Number 0221U105236, 0119U101467 , R & D reports Title To conduct a study of the effect of modification of bitumen on the physical and mechanical properties of road asphalt concrete and to prepare proposals for adjusting the corresponding plutonizers in reference books of calculation characteristics popup.stage_title Head Zolotarev Viktor O., Доктор технічних наук Registration Date 16-06-2021 Organization Kharkiv National Automobile and Road University popup.description2 The object of research - asphalt concrete on bitumen of different consistency, with the addition of polymer, natural asphalt, energy-saving substances, asphalt concrete of different composition, the method of determining the coefficient of frost resistance at different frequencies and temperatures. The purpose of the study - a review of literature sources, development of a method for determining the coefficient of frost resistance by modulus of elasticity and after cyclic freezing-thawing; establishing the influence of the quality of the binder, its modification, aggressive environments, the composition of asphalt concrete on its frost resistance. Research methods - analytical review of literature sources, non-destructive method for determining the coefficient of frost resistance by the values ​​of complex modulus of elasticity corresponding to the linear region of deformation of asphalt concrete. According to the schedule of research work, the development of a method for determining the coefficient of frost resistance of asphalt concrete, based on the ratio of modulus of elasticity after and before cyclic freezing-thawing, determined by the method EN 12591-26; determining the influence of test conditions of temperature and time of action of loading on indicators of frost resistance; the ability of asphalt concrete to heal winter defects in the summer is shown; establishing the influence of bitumen consistency of bitumen modification methods, composition of asphalt concrete, liquid aggressive media (anti-ice solutions) on the coefficient of frost resistance; shown the effectiveness in terms of frost resistance of bitumen modification with a polymer type SBS and use as an anti-ice solution CaCl2; it is proposed to take into account the coefficients of frost resistance in the design of pavement.  Product Description popup.authors Ilyin Yaroslav V Galkin Andrey V Pyrig Yan I popup.nrat_date 2021-06-16 Close