Geotechnical Properties of Anthropogenic Soils in Road Engineering

Andrzej Głuchowski, Katarzyna Gabryś, Emil Soból, Raimondas Šadzevičius and Wojciech Sas
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Andrzej Głuchowski: Water Centre WULS, Warsaw University of Life Sciences-SGGW, 02787 Warsaw, Poland
Katarzyna Gabryś: Water Centre WULS, Warsaw University of Life Sciences-SGGW, 02787 Warsaw, Poland
Emil Soból: Institute of Civil Engineering, Warsaw University of Life Sciences-SGGW, 02787 Warsaw, Poland
Raimondas Šadzevičius: Institute of Hydraulic Engineering, Vytautas Magnus University Agriculture Academy, 53361 Kaunas, Lithuania
Wojciech Sas: Water Centre WULS, Warsaw University of Life Sciences-SGGW, 02787 Warsaw, Poland

Sustainability, 2020, vol. 12, issue 12, 1-25

Abstract: The construction of a roads network consumes high amounts of materials. The road materials are required to fulfill high standards like bearing capacity and low settlement susceptibility due to cyclic loading. Therefore, crushed aggregates are the primary subbase construction material. The material-intensity of road engineering leads to depletion of natural resources, and to avoid it, the alternative recycled materials are required to be applied to achieve sustainable development. The anthropogenic soils (AS), which are defined as man-made unbound aggregates, are the response to these requirements. For the successful application of the AS, a series of geotechnical laboratory and field tests were conducted. In this article, we present the set of 58 test results, including California Bearing Ratio (CBR) bearing capacity tests, oedometric tests, and cyclic CBR tests, to characterize the behavior of three AS types and to compare its reaction with natural aggregate (NA). The AS tested in this study are recycled concrete aggregate (RCA), fly ash and bottom ash mix (BS), and blast furnace slag (BFS). The results of the tests show that the AS has similar characteristics to NA, and in some cases, like compression characteristic, RCA and BFS behave a stiffer response to cyclic loading. The test results and analysis presented here extend the knowledge about AS compressibility and AS response to cyclic loading.

Keywords: anthropogenic soil; natural aggregate; recycled concrete aggregate; blast furnace slag; bottom slag; CBR; cyclic loading; cCBR; oedometric tests; optimal moisture content; geotechnics (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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