Shrinkage of recycled aggregate concrete: experimental database and application of fib Model Code 2010
Abstract
This paper describes a meta-analysis of previously published studies on the shrinkage strain of recycled aggregate concrete (RAC). The study aims at providing an analytic expression for the shrinkage strain of RAC to be used in conjunction with the existing fib Model Code 2010 shrinkage prediction model. For this purpose, a database of experimental results on the shrinkage of RAC and companion natural aggregate concrete (NAC), produced with the same water-cement ratio, was compiled using strict selection criteria. Results from 19 studies entered into the database, consisting of 125 shrinkage curves (39 NAC and 86 RAC) with a total of 424 data points. A comparison of RAC and companion NAC revealed that, on average, RAC displays a larger shrinkage strain. This difference increases with increasing recycled concrete aggregate (RCA) content and with decreasing compressive strength. Applying the fib Model Code 2010 shrinkage prediction model revealed that, relative to its performance on NAC,... the shrinkage strain of RAC is underestimated. Finally, a correction coefficient for the shrinkage strain of RAC, zeta(cs),(RAC), to be used in conjunction with the fib Model Code 2010 model, was proposed in the form of a bivariate power function with RAC compressive strength and RCA replacement ratio as variables.
Keywords:
Recycled concrete aggregate / Recycled aggregate concrete / Shrinkage / Database / Model CodeSource:
Materials and Structures, 2018, 51, 5Publisher:
- Springer Netherlands
Funding / projects:
DOI: 10.1617/s11527-018-1258-0
ISSN: 1359-5997
WoS: 000445195700006
Scopus: 2-s2.0-85053697705
Institution/Community
GraFarTY - JOUR AU - Tošić, Nikola AU - de la Fuente, Albert AU - Marinković, Snežana PY - 2018 UR - https://grafar.grf.bg.ac.rs/handle/123456789/946 AB - This paper describes a meta-analysis of previously published studies on the shrinkage strain of recycled aggregate concrete (RAC). The study aims at providing an analytic expression for the shrinkage strain of RAC to be used in conjunction with the existing fib Model Code 2010 shrinkage prediction model. For this purpose, a database of experimental results on the shrinkage of RAC and companion natural aggregate concrete (NAC), produced with the same water-cement ratio, was compiled using strict selection criteria. Results from 19 studies entered into the database, consisting of 125 shrinkage curves (39 NAC and 86 RAC) with a total of 424 data points. A comparison of RAC and companion NAC revealed that, on average, RAC displays a larger shrinkage strain. This difference increases with increasing recycled concrete aggregate (RCA) content and with decreasing compressive strength. Applying the fib Model Code 2010 shrinkage prediction model revealed that, relative to its performance on NAC, the shrinkage strain of RAC is underestimated. Finally, a correction coefficient for the shrinkage strain of RAC, zeta(cs),(RAC), to be used in conjunction with the fib Model Code 2010 model, was proposed in the form of a bivariate power function with RAC compressive strength and RCA replacement ratio as variables. PB - Springer Netherlands T2 - Materials and Structures T1 - Shrinkage of recycled aggregate concrete: experimental database and application of fib Model Code 2010 IS - 5 VL - 51 DO - 10.1617/s11527-018-1258-0 ER -
@article{ author = "Tošić, Nikola and de la Fuente, Albert and Marinković, Snežana", year = "2018", abstract = "This paper describes a meta-analysis of previously published studies on the shrinkage strain of recycled aggregate concrete (RAC). The study aims at providing an analytic expression for the shrinkage strain of RAC to be used in conjunction with the existing fib Model Code 2010 shrinkage prediction model. For this purpose, a database of experimental results on the shrinkage of RAC and companion natural aggregate concrete (NAC), produced with the same water-cement ratio, was compiled using strict selection criteria. Results from 19 studies entered into the database, consisting of 125 shrinkage curves (39 NAC and 86 RAC) with a total of 424 data points. A comparison of RAC and companion NAC revealed that, on average, RAC displays a larger shrinkage strain. This difference increases with increasing recycled concrete aggregate (RCA) content and with decreasing compressive strength. Applying the fib Model Code 2010 shrinkage prediction model revealed that, relative to its performance on NAC, the shrinkage strain of RAC is underestimated. Finally, a correction coefficient for the shrinkage strain of RAC, zeta(cs),(RAC), to be used in conjunction with the fib Model Code 2010 model, was proposed in the form of a bivariate power function with RAC compressive strength and RCA replacement ratio as variables.", publisher = "Springer Netherlands", journal = "Materials and Structures", title = "Shrinkage of recycled aggregate concrete: experimental database and application of fib Model Code 2010", number = "5", volume = "51", doi = "10.1617/s11527-018-1258-0" }
Tošić, N., de la Fuente, A.,& Marinković, S.. (2018). Shrinkage of recycled aggregate concrete: experimental database and application of fib Model Code 2010. in Materials and Structures Springer Netherlands., 51(5). https://doi.org/10.1617/s11527-018-1258-0
Tošić N, de la Fuente A, Marinković S. Shrinkage of recycled aggregate concrete: experimental database and application of fib Model Code 2010. in Materials and Structures. 2018;51(5). doi:10.1617/s11527-018-1258-0 .
Tošić, Nikola, de la Fuente, Albert, Marinković, Snežana, "Shrinkage of recycled aggregate concrete: experimental database and application of fib Model Code 2010" in Materials and Structures, 51, no. 5 (2018), https://doi.org/10.1617/s11527-018-1258-0 . .