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APPLICATION OF RECYCLED CONCRETE AGGREGATE IN ROAD ENGINEERING

Sobol, E.; Sas, W.; Gluchowski, A.; Gabrys, K. U.; Szymanski, A.
Abstract:
Recycled Concrete Aggregate is a material resulting from the crushing of concrete elements. Currently, as a result of increased demand for natural aggregates, artificial aggregates are sought as an alternative materials in civil engineering activities. Recycled Concrete Aggregate characterizes high strength, but some properties, both mechanical and physical, remains unclear, which often discourages engineers to use this material. The paper presents the results of the California Bearing Ratio (CBR) and cyclic CBR (cCBR) of Recycled Concrete Aggregate. The study was preceded by an analysis of the physical properties of the material. Determination of the CBR and cCBR were conducted for soil in optimum moisture and air-dry state, also such unfavorable conditions as full saturation and low soil compaction were included. This parameters are significant for road constructions, especially Resilient Modulus obtained from repeated loading tests which nowadays play an important role in road design. Resilient Modulus (Mr) is part of mechanistic-empirical design which replaces common empirical method based on CBR tests. In this paper results of CBR, cCBR (repeated loading tests) will be presented as well as methodology of material examination.
SGEM Research areas:
Year:
2017
Type of Publication:
In Proceedings
Keywords:
cyclic; CBR; recycled concrete aggregate; road engineering; geotechnics
Volume:
17
SGEM Book title:
17th International Multidisciplinary Scientific GeoConference SGEM 2017
Book number:
12
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
55-62
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
29 June - 5 July, 2017
ISBN:
978-619-7105-99-5
ISSN:
1314-2704
Conference:
17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
DOI:
10.5593/sgem2017/12/S02.008
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