TY  - JOUR
AU  - Tošic, Nikola
AU  - Marinković, Snežana
AU  - de Brito, Jorge
PY  - 2019
UR  - https://onlinelibrary.wiley.com/doi/abs/10.1002/suco.201900035
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1834
AB  - Recycled aggregate concrete (RAC) has emerged as a viable solution for
solving some of the environmental problems of concrete production.
However, design guidelines for deflection control of reinforced RAC
members have not yet been proposed. This study presents a
comprehensive analysis of the applicability of the fib Model Code 2010
(MC2010) deflection control model to reinforced RAC beams. Three
databases of long-term studies on natural aggregate concrete (NAC) and
RAC beams were compiled and meta-analyses of deflection predictions
by MC2010 were performed. First, the MC2010 deflection control model
was tested against a large database of long-term tests on NAC beams.
Second, a database of RAC and companion NAC beams was compiled
and initial and long-term deflections were calculated using the MC2010
model. It was shown that deflections of RAC beams are significantly
underestimated relative to NAC beams. Previously proposed
modifications for MC2010 equations for shrinkage strain and creep
coefficient were used, and new modifications for the modulus of elasticity
and empirical coefficient β were proposed. The improved MC2010
deflection control model on RAC beams was shown to have equal
performance to that on companion NAC beams. The proposals presented
in this paper can help engineers to more reliably perform deflection
control of reinforced RAC members.
T2  - Structural Concrete
T1  - Deflection control for reinforced recycled aggregate concrete beams: Experimental database and extension of the fib Model Code 2010 model
EP  - 2029
IS  - 6
SP  - 2015
VL  - 20
DO  - 10.1002/suco.201900035
ER  - 

@article{
author = "Tošic, Nikola and Marinković, Snežana and de Brito, Jorge",
year = "2019",
abstract = "Recycled aggregate concrete (RAC) has emerged as a viable solution for
solving some of the environmental problems of concrete production.
However, design guidelines for deflection control of reinforced RAC
members have not yet been proposed. This study presents a
comprehensive analysis of the applicability of the fib Model Code 2010
(MC2010) deflection control model to reinforced RAC beams. Three
databases of long-term studies on natural aggregate concrete (NAC) and
RAC beams were compiled and meta-analyses of deflection predictions
by MC2010 were performed. First, the MC2010 deflection control model
was tested against a large database of long-term tests on NAC beams.
Second, a database of RAC and companion NAC beams was compiled
and initial and long-term deflections were calculated using the MC2010
model. It was shown that deflections of RAC beams are significantly
underestimated relative to NAC beams. Previously proposed
modifications for MC2010 equations for shrinkage strain and creep
coefficient were used, and new modifications for the modulus of elasticity
and empirical coefficient β were proposed. The improved MC2010
deflection control model on RAC beams was shown to have equal
performance to that on companion NAC beams. The proposals presented
in this paper can help engineers to more reliably perform deflection
control of reinforced RAC members.",
journal = "Structural Concrete",
title = "Deflection control for reinforced recycled aggregate concrete beams: Experimental database and extension of the fib Model Code 2010 model",
pages = "2029-2015",
number = "6",
volume = "20",
doi = "10.1002/suco.201900035"
}

Tošic, N., Marinković, S.,& de Brito, J.. (2019). Deflection control for reinforced recycled aggregate concrete beams: Experimental database and extension of the fib Model Code 2010 model. in Structural Concrete, 20(6), 2015-2029.
https://doi.org/10.1002/suco.201900035

Tošic N, Marinković S, de Brito J. Deflection control for reinforced recycled aggregate concrete beams: Experimental database and extension of the fib Model Code 2010 model. in Structural Concrete. 2019;20(6):2015-2029.
doi:10.1002/suco.201900035 .

Tošic, Nikola, Marinković, Snežana, de Brito, Jorge, "Deflection control for reinforced recycled aggregate concrete beams: Experimental database and extension of the fib Model Code 2010 model" in Structural Concrete, 20, no. 6 (2019):2015-2029,
https://doi.org/10.1002/suco.201900035 . .

TY  - CONF
AU  - Tošić, Nikola
AU  - Marinković, Snežana
AU  - De Brito, Jorge
AU  - Pecić, Nenad
AU  - Ignjatović, Ivan
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1631
AB  - The environmental problems posed by the production of concrete can be solved namely by using green concrete produced with recycled and waste materials. This study intends to present results on the long-term properties of concrete produced with 100% coarse recycled concrete aggregate and concrete produced with 50% of class F fly ash in total cementitious materials and compare them with a companion natural aggregate concrete. The three concrete mixes were tested at the material level where shrinkage and creep were tested for 700 days on concrete prisms, and at the structural level where deflections, strains, and cracks of simply supported reinforc
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - ASES International congress proceedings / Association of Structural Engineers of Serbia, 15th Congress, September 6-8th, 2018, Zlatibor
T1  - Long-term properties of green concrete: testing at the material and structural level
EP  - 227
SP  - 218
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1631
ER  - 

@conference{
author = "Tošić, Nikola and Marinković, Snežana and De Brito, Jorge and Pecić, Nenad and Ignjatović, Ivan",
year = "2018",
abstract = "The environmental problems posed by the production of concrete can be solved namely by using green concrete produced with recycled and waste materials. This study intends to present results on the long-term properties of concrete produced with 100% coarse recycled concrete aggregate and concrete produced with 50% of class F fly ash in total cementitious materials and compare them with a companion natural aggregate concrete. The three concrete mixes were tested at the material level where shrinkage and creep were tested for 700 days on concrete prisms, and at the structural level where deflections, strains, and cracks of simply supported reinforc",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "ASES International congress proceedings / Association of Structural Engineers of Serbia, 15th Congress, September 6-8th, 2018, Zlatibor",
title = "Long-term properties of green concrete: testing at the material and structural level",
pages = "227-218",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1631"
}

Tošić, N., Marinković, S., De Brito, J., Pecić, N.,& Ignjatović, I.. (2018). Long-term properties of green concrete: testing at the material and structural level. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 15th Congress, September 6-8th, 2018, Zlatibor
Društvo građevinskih konstruktera Srbije, Beograd., 218-227.
https://hdl.handle.net/21.15107/rcub_grafar_1631

Tošić N, Marinković S, De Brito J, Pecić N, Ignjatović I. Long-term properties of green concrete: testing at the material and structural level. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 15th Congress, September 6-8th, 2018, Zlatibor. 2018;:218-227.
https://hdl.handle.net/21.15107/rcub_grafar_1631 .

Tošić, Nikola, Marinković, Snežana, De Brito, Jorge, Pecić, Nenad, Ignjatović, Ivan, "Long-term properties of green concrete: testing at the material and structural level" in ASES International congress proceedings / Association of Structural Engineers of Serbia, 15th Congress, September 6-8th, 2018, Zlatibor (2018):218-227,
https://hdl.handle.net/21.15107/rcub_grafar_1631 .