New concept of durable flexible sub-base with use of deep cold recycling mixtures

Jan Król , Katarzyna Konieczna , Karol Kowalski , D. Zymelka , W. Sorociak

Abstract

Nowadays, recycling of asphalt pavements is a necessity due to decreasing natural resources and implementation of the principles of sustainable development. Bituminous materials as one of the oldest construction materials are ecological due to the possibility of their total recycling. This article presents the evolution of the Polish standards for deep cold recycling technology, assesses the functional aspects of BSMs and analyses the applicability of the new technology for sub-base layer construction. The technology of deep cold recycling using cement and asphalt emulsions allows to quickly reconstruct road structure on site. The addition of cement allows to obtain increased bearing capacity of the road structure immediately after construction, but too large amount of cement causes over-stiffening and cracking of road pavement layers. The paper presents research results concerning mechanical properties of Mineral-Cement-Emulsion with various amounts of active filler and bituminous binder as well as properties of binders stabilised from experimental bitumen emulsions. The research results allow to state that the influence of bitumen emulsion content and type should be investigated on mixes containing smaller amounts of cement where the dominant role of the active filler in the MCE mix is reduced.
Author Jan Król (FCE / IRB)
Jan Król,,
- The Institute of Roads and Bridges
, Katarzyna Konieczna (FCE / IRB)
Katarzyna Konieczna,,
- The Institute of Roads and Bridges
, Karol Kowalski (FCE / IRB)
Karol Kowalski,,
- The Institute of Roads and Bridges
, D. Zymelka
D. Zymelka,,
-
, W. Sorociak
W. Sorociak,,
-
Pages1-11
Publication size in sheets0.5
Book Proceedings of the 7th Eurasphalt & Eurobitume Congress v1.0, 2020, ISBN 9789080288461
Languageen angielski
Score (nominal)0
Score sourceconferenceList
ScoreMinisterial score = 0.0, 10-07-2020, ChapterFromConference
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