Suitability of Recycled Concrete Aggregates from Precast Panel Buildings Deconstructed at Expired Lifespan for Structural Use
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU134462" target="_blank" >RIV/00216305:26110/19:PU134462 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0959652619344634" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0959652619344634</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jclepro.2019.119593" target="_blank" >10.1016/j.jclepro.2019.119593</a>
Alternative languages
Result language
angličtina
Original language name
Suitability of Recycled Concrete Aggregates from Precast Panel Buildings Deconstructed at Expired Lifespan for Structural Use
Original language description
This paper presents experimental research conducted to verify the suitability of a specific type of recycled aggregate concrete (RAC) for structural use. The recycled concrete aggregates (RCA) used in the RAC mixtures considered here were obtained from precast panels taken from high-rise buildings, which are typical residential structures in former Eastern Bloc countries of the European continent. Precast panels from these buildings are often considered to be unsuitable sources for structural RAC mainly on account of their poor material base and the low-skilled construction workforce and questionable quality control involved in their production. The scope of testing was determined according to guidelines stated in the EN 206-1 standard. During the execution of the tests, the following characteristics were determined for the RCA: particle size distribution; amount of fine particles; particle density; water absorption; shape index and Los Angeles abrasion resistance. Afterwards, RAC specimens were prepared on the basis of recipes developed in accordance with the EN 12390 standard, and underwent tests which evaluated the following properties: slump; air content; fresh concrete density; compressive strength; flexural strength; hardened concrete density and water absorption. The gained test results show the technical suitability of the tested RCA sources for producing medium strength structural RAC. The obtained RCA water absorption values are relatively high compared to natural aggregate (NA), and the 28-day strengths exhibited by most of the RAC specimens are one class lower than the target values. In spite of these deficiencies, the tested RCA still can be classified as suitable for medium strength structural RAC provided that these predispositions are taken into account during recipe design. The necessity to test the properties of RCA, as soon as its source is taken into consideration, reduces possibilities for general conclusions. Nevertheless, the paper provides co
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Cleaner Production
ISSN
0959-6526
e-ISSN
1879-1786
Volume of the periodical
neuveden
Issue of the periodical within the volume
247
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
1-12
UT code for WoS article
000505696700113
EID of the result in the Scopus database
2-s2.0-85076282380