Horizon 2020 research and innovation programme under the Marie Skªodowska-Curie grant agreement no. 836270 and from the United States Department of State through the Fulbright Visiting Scholar Grant “Optimization of Stratified Recycled Concrete Structures Based on Numerical Analyses and Life Cycle Assessment.”

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http://grafar.grf.bg.ac.rs/APP/faces/project.xhtml?project_id=Horizon+2020+research+and+innovation+programme+under+the+Marie+Sk%C2%AAodowska-Curie+grant+agreement+no.+836270+and+from+the+United+States+Department+of+State+through+the+Fulbright+Visiting+Scholar+Grant+%E2%80%9COptimization+of+Stratified+Recycled+Concrete+Structures+Based+on+Numerical+Analyses+and+Life+Cycle+Assessment.%E2%80%9D&item_offset=0&author_offset=0&sort_by=dc.date.issued

Horizon 2020 research and innovation programme under the Marie Skªodowska-Curie grant agreement no. 836270 and from the United States Department of State through the Fulbright Visiting Scholar Grant “Optimization of Stratified Recycled Concrete Structures Based on Numerical Analyses and Life Cycle Assessment.”

Authors

Publications

Improved Serviceability and Environmental Performance of One-Way Slabs through the Use of Layered Natural and Recycled Aggregate Concrete

Tošić, Nikola; Kurama, Yahya; Marinković, Snežana

(MDPI, 2020) 

TY  - JOUR
AU  - Tošić, Nikola
AU  - Kurama, Yahya
AU  - Marinković, Snežana
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3362
AB  - Recycled aggregate concrete (RAC), i.e., concrete produced with recycled concrete aggregate
(RCA) has been heavily investigated recently, and the structural design of RAC is entering into
design codes. Nonetheless, the service load deflection behavior of RAC remains a challenge due to
its larger shrinkage and creep, and lower modulus of elasticity. A novel solution to this challenge
is the use of layered concrete, i.e., casting of horizontal layers of di erent concretes. To investigate
the potential benefits and limits of layered concrete, this study contains a numerical parametric
assessment of the time-dependent sustained service load deflections and environmental impacts of
homogeneous and layered NAC and RAC one-way slabs. Four types of reinforced concrete slabs were
considered: homogeneous slabs with 0%, 50% and 100% of coarse RCA (NAC, RAC50 and RAC100,
respectively) and layered L-RAC100 slabs with the bottom and top halves consisting of RAC100 and
NAC, respectively. In the deflection study, di erent statical systems, concrete strength classes and
relative humidity conditions were investigated. The results showed that the layered L-RAC100 slabs
performed as well as, or even better than, the NAC slabs due to the di erential shrinkage between
the layers. In terms of environmental performance, evaluated using a “cradle-to-gate” Life Cycle
Assessment approach, the L-RAC100 slabs also performed as well as, or slightly better than, the NAC
slabs. Therefore, layered NAC and RAC slabs can be a potentially advantageous solution from both
structural and environmental perspectives.
PB  - MDPI
T2  - Sustainability
T1  - Improved Serviceability and Environmental Performance of One-Way Slabs through the Use of Layered Natural and Recycled Aggregate Concrete
SP  - 10278
VL  - 12
DO  - 10.3390/su122410278
ER  - 
@article{
author = "Tošić, Nikola and Kurama, Yahya and Marinković, Snežana",
year = "2020",
abstract = "Recycled aggregate concrete (RAC), i.e., concrete produced with recycled concrete aggregate
(RCA) has been heavily investigated recently, and the structural design of RAC is entering into
design codes. Nonetheless, the service load deflection behavior of RAC remains a challenge due to
its larger shrinkage and creep, and lower modulus of elasticity. A novel solution to this challenge
is the use of layered concrete, i.e., casting of horizontal layers of di erent concretes. To investigate
the potential benefits and limits of layered concrete, this study contains a numerical parametric
assessment of the time-dependent sustained service load deflections and environmental impacts of
homogeneous and layered NAC and RAC one-way slabs. Four types of reinforced concrete slabs were
considered: homogeneous slabs with 0%, 50% and 100% of coarse RCA (NAC, RAC50 and RAC100,
respectively) and layered L-RAC100 slabs with the bottom and top halves consisting of RAC100 and
NAC, respectively. In the deflection study, di erent statical systems, concrete strength classes and
relative humidity conditions were investigated. The results showed that the layered L-RAC100 slabs
performed as well as, or even better than, the NAC slabs due to the di erential shrinkage between
the layers. In terms of environmental performance, evaluated using a “cradle-to-gate” Life Cycle
Assessment approach, the L-RAC100 slabs also performed as well as, or slightly better than, the NAC
slabs. Therefore, layered NAC and RAC slabs can be a potentially advantageous solution from both
structural and environmental perspectives.",
publisher = "MDPI",
journal = "Sustainability",
title = "Improved Serviceability and Environmental Performance of One-Way Slabs through the Use of Layered Natural and Recycled Aggregate Concrete",
pages = "10278",
volume = "12",
doi = "10.3390/su122410278"
}
Tošić, N., Kurama, Y.,& Marinković, S.. (2020). Improved Serviceability and Environmental Performance of One-Way Slabs through the Use of Layered Natural and Recycled Aggregate Concrete. in Sustainability
MDPI., 12, 10278.
https://doi.org/10.3390/su122410278
Tošić N, Kurama Y, Marinković S. Improved Serviceability and Environmental Performance of One-Way Slabs through the Use of Layered Natural and Recycled Aggregate Concrete. in Sustainability. 2020;12:10278.
doi:10.3390/su122410278 .
Tošić, Nikola, Kurama, Yahya, Marinković, Snežana, "Improved Serviceability and Environmental Performance of One-Way Slabs through the Use of Layered Natural and Recycled Aggregate Concrete" in Sustainability, 12 (2020):10278,
https://doi.org/10.3390/su122410278 . .
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