Structural-Sensitive Properties of Self-Healing Asphalt Concrete

The statistical data analysis was performed for 10 different properties of asphalt concrete determined according to GOST 31015–2002 and the optimization of the set of quality indicators was performed. Three characteristics sufficient for assessing the quality of self-healing asphalt concrete were identified. The compressive strength limit at 0 and 20^оC and the splitting strength limit at 0^оC are the quality system indicators sensitive to the self-healing process. It was found that the self-healing index is inversely proportional to the relative deformations to which the asphalt concrete sample is subjected when determining the physical and mechanical properties. The use of AR polymer in capsules allows achieving a greater self-healing effect compared to capsules containing vegetable oil. The use of capsules with vegetable oil is advisable only when combating cracks formed as a result of thermal-oxidative aging of asphalt concrete bitumen.

S.S. INOZEMTCEV¹, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
E.V. KOROLEV², Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

¹ National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)
² Saint Petersburg State University of Architecture and Civil Engineering (4, 2nd Krasnoarmeyskaya Street, Saint Petersburg 190005, Russian Federation)

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