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Title: POSSIBILITIES OF REDUCING THE ENERGY CONSUMPTION OF HOT MIX ASPHALT PRODUCTION
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POSSIBILITIES OF REDUCING THE ENERGY CONSUMPTION OF HOT MIX ASPHALT PRODUCTION
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1314-2704
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English
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20
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5.1
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The trend of improving the properties of the used materials also extends to the field of road construction. The research focuses on materials and technologies that immediately improve several properties of asphalt mixtures and at the same time reduce the energy requirements during the production, laying and compaction of asphalt mixtures. When comparing the energy consumption consumed in the production of one t of a mixture (HMA, WMA), it is possible to save at least 15 % of costs and CO2eq emissions [kg/t] up to 10 % in the production of low-temperature mixtures (WMA). However, the maintenance of useful technical properties is a basic condition for the use of such materials and technologies. In the paper, there is verified the compactibility of asphalt mixture AC 16 at reduced temperature using three types of additives (Licomont BS100, CWM, and Wetfix BE) used in mixture production. In laboratory there was investigated the compaction resistance as the relation between the increase in density, decrease in thickness, and the compaction energy applied to it using impact Marshall compactor. The obtained results show the effect of reducing the compaction resistance, but not for all additives in the same way. The same compaction at a reduced temperature of 10 and 20 °C was made possible by the addition of Licomont BS100 in comparison with the reference mixture at the reference temperature (150 °C). The compaction energy and the compaction resistance of the asphalt mixture affect the mechanical properties of the asphalt mixture and layer in pavement construction.
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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607-614
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18 - 24 August, 2020
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website
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cdrom
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7351
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asphalt mix; compactibility; additive; compaction resistance
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