TY  - CONF
AU  - Govedarica, Ognjen
AU  - Karanović, Dj.
AU  - Stanić, Filip
AU  - Škondrić, M.
AU  - Lekić, Branislava
AU  - Rajaković-Ognjanović, Vladana
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3488
AB  - - Incorporating waste materials into useful building materials and environmental benefits;
- Understanding benefits of the addition of solidified wastewater treatment sludge (SWWTS) to porous concrete pavements;
- Wise application of waste in urban infrastructure adopting and applying the principles of circular economy.
PB  - Delft University of Technology, NL
C3  - 16th International Conference on Urban Drainage, Delft, 9-14 June, 2024
T1  - Circular Economy Innovation in Urban Infrastructure: Harnessing the Power of Solidified WWTP Sludge in Porous Concrete Pavements for Flood-Resilient Cities
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3488
ER  - 

@conference{
author = "Govedarica, Ognjen and Karanović, Dj. and Stanić, Filip and Škondrić, M. and Lekić, Branislava and Rajaković-Ognjanović, Vladana",
year = "2024",
abstract = "- Incorporating waste materials into useful building materials and environmental benefits;
- Understanding benefits of the addition of solidified wastewater treatment sludge (SWWTS) to porous concrete pavements;
- Wise application of waste in urban infrastructure adopting and applying the principles of circular economy.",
publisher = "Delft University of Technology, NL",
journal = "16th International Conference on Urban Drainage, Delft, 9-14 June, 2024",
title = "Circular Economy Innovation in Urban Infrastructure: Harnessing the Power of Solidified WWTP Sludge in Porous Concrete Pavements for Flood-Resilient Cities",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3488"
}

Govedarica, O., Karanović, Dj., Stanić, F., Škondrić, M., Lekić, B.,& Rajaković-Ognjanović, V.. (2024). Circular Economy Innovation in Urban Infrastructure: Harnessing the Power of Solidified WWTP Sludge in Porous Concrete Pavements for Flood-Resilient Cities. in 16th International Conference on Urban Drainage, Delft, 9-14 June, 2024
Delft University of Technology, NL..
https://hdl.handle.net/21.15107/rcub_grafar_3488

Govedarica O, Karanović D, Stanić F, Škondrić M, Lekić B, Rajaković-Ognjanović V. Circular Economy Innovation in Urban Infrastructure: Harnessing the Power of Solidified WWTP Sludge in Porous Concrete Pavements for Flood-Resilient Cities. in 16th International Conference on Urban Drainage, Delft, 9-14 June, 2024. 2024;.
https://hdl.handle.net/21.15107/rcub_grafar_3488 .

Govedarica, Ognjen, Karanović, Dj., Stanić, Filip, Škondrić, M., Lekić, Branislava, Rajaković-Ognjanović, Vladana, "Circular Economy Innovation in Urban Infrastructure: Harnessing the Power of Solidified WWTP Sludge in Porous Concrete Pavements for Flood-Resilient Cities" in 16th International Conference on Urban Drainage, Delft, 9-14 June, 2024 (2024),
https://hdl.handle.net/21.15107/rcub_grafar_3488 .

TY  - CONF
AU  - Stanić, Filip
AU  - Jaćimović, Nenad
AU  - Govedarica, Ognjen
AU  - Lekić, Branislava
AU  - Vasilić, Željko
AU  - Ranđelović, Anja
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3487
C3  - 16th International Conference on Urban Drainage, Delft, June, 2024
T1  - An improved semi-analytical solution for determining water permeability of highly pervious porous materials
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3487
ER  - 

@conference{
author = "Stanić, Filip and Jaćimović, Nenad and Govedarica, Ognjen and Lekić, Branislava and Vasilić, Željko and Ranđelović, Anja",
year = "2024",
journal = "16th International Conference on Urban Drainage, Delft, June, 2024",
title = "An improved semi-analytical solution for determining water permeability of highly pervious porous materials",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3487"
}

Stanić, F., Jaćimović, N., Govedarica, O., Lekić, B., Vasilić, Ž.,& Ranđelović, A.. (2024). An improved semi-analytical solution for determining water permeability of highly pervious porous materials. in 16th International Conference on Urban Drainage, Delft, June, 2024.
https://hdl.handle.net/21.15107/rcub_grafar_3487

Stanić F, Jaćimović N, Govedarica O, Lekić B, Vasilić Ž, Ranđelović A. An improved semi-analytical solution for determining water permeability of highly pervious porous materials. in 16th International Conference on Urban Drainage, Delft, June, 2024. 2024;.
https://hdl.handle.net/21.15107/rcub_grafar_3487 .

Stanić, Filip, Jaćimović, Nenad, Govedarica, Ognjen, Lekić, Branislava, Vasilić, Željko, Ranđelović, Anja, "An improved semi-analytical solution for determining water permeability of highly pervious porous materials" in 16th International Conference on Urban Drainage, Delft, June, 2024 (2024),
https://hdl.handle.net/21.15107/rcub_grafar_3487 .

TY  - JOUR
AU  - Govedarica, Ognjen
AU  - Aškrabić, Marina
AU  - Hadnađev-Kostić, Milica
AU  - Vulić, Tatjana
AU  - Lekić, Branislava
AU  - Rajaković-Ognjanović, Vladana
AU  - Zakić, Dimitrije
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2697
AB  - Waste and recycled materials have recently been used in the construction industry to comply with the principles of circular economy and sustainable development. The aim of this paper is to examine the potentials of solidified wastewater treatment sludge (SWWTS) as a supplementary cementitious material (SCM) in the production of lightweight pervious concrete pavers (LWPCP) suitable for pedestrian trails and rooftops (green) that comply with EU standards. Detailed characterization of SWWTS was performed, in order to understand its properties related to application as SCM, which led to the conclusion that it may be applied only as a filler, having 89.5% of Ca(OH)2. After thorough characterization, LWPCP samples were prepared and testing of physical and mechanical properties was conducted. The research showed that partial replacement of cement with SWWTS led to the decrease of all mechanical properties, ranging between 3.91 and 5.81 MPa for compressive strength and 0.97 to 1.23 MPa for flexural strength. However, all of the investigated mixtures showed a value higher than 3.5 MPa, which was defined as the lowest compressive strength in the range of pervious concrete properties. The addition of SWWTS led to a slight decrease in bulk density of the mixtures and an increase in water absorption. This could be explained by the reduction in hydration products that would fill in the micropores of the matrix, since SWWTS showed no pozzolanic reactivity. Pore sizes that prevail in the tested binder matrices are in accordance with the results measured on ordinary pervious concrete (the largest fraction of pores had a diameter between 0.02 and 0.2 μm). Low thermal conductivity nominates produced pavers as potential rooftop elements.
PB  - MDPI
T2  - Materials 2022, The Special Issue Industrial Symbiosis and Development of New Materials or Products in Building Sector
T1  - Evaluation of Solidified Wastewater Treatment Sludge as a Potential SCM in Pervious Concrete Pavements
IS  - 14
VL  - 15
DO  - https://doi.org/10.3390/ma15144919
ER  - 

@article{
author = "Govedarica, Ognjen and Aškrabić, Marina and Hadnađev-Kostić, Milica and Vulić, Tatjana and Lekić, Branislava and Rajaković-Ognjanović, Vladana and Zakić, Dimitrije",
year = "2022",
abstract = "Waste and recycled materials have recently been used in the construction industry to comply with the principles of circular economy and sustainable development. The aim of this paper is to examine the potentials of solidified wastewater treatment sludge (SWWTS) as a supplementary cementitious material (SCM) in the production of lightweight pervious concrete pavers (LWPCP) suitable for pedestrian trails and rooftops (green) that comply with EU standards. Detailed characterization of SWWTS was performed, in order to understand its properties related to application as SCM, which led to the conclusion that it may be applied only as a filler, having 89.5% of Ca(OH)2. After thorough characterization, LWPCP samples were prepared and testing of physical and mechanical properties was conducted. The research showed that partial replacement of cement with SWWTS led to the decrease of all mechanical properties, ranging between 3.91 and 5.81 MPa for compressive strength and 0.97 to 1.23 MPa for flexural strength. However, all of the investigated mixtures showed a value higher than 3.5 MPa, which was defined as the lowest compressive strength in the range of pervious concrete properties. The addition of SWWTS led to a slight decrease in bulk density of the mixtures and an increase in water absorption. This could be explained by the reduction in hydration products that would fill in the micropores of the matrix, since SWWTS showed no pozzolanic reactivity. Pore sizes that prevail in the tested binder matrices are in accordance with the results measured on ordinary pervious concrete (the largest fraction of pores had a diameter between 0.02 and 0.2 μm). Low thermal conductivity nominates produced pavers as potential rooftop elements.",
publisher = "MDPI",
journal = "Materials 2022, The Special Issue Industrial Symbiosis and Development of New Materials or Products in Building Sector",
title = "Evaluation of Solidified Wastewater Treatment Sludge as a Potential SCM in Pervious Concrete Pavements",
number = "14",
volume = "15",
doi = "https://doi.org/10.3390/ma15144919"
}

Govedarica, O., Aškrabić, M., Hadnađev-Kostić, M., Vulić, T., Lekić, B., Rajaković-Ognjanović, V.,& Zakić, D.. (2022). Evaluation of Solidified Wastewater Treatment Sludge as a Potential SCM in Pervious Concrete Pavements. in Materials 2022, The Special Issue Industrial Symbiosis and Development of New Materials or Products in Building Sector
MDPI., 15(14).
https://doi.org/https://doi.org/10.3390/ma15144919

Govedarica O, Aškrabić M, Hadnađev-Kostić M, Vulić T, Lekić B, Rajaković-Ognjanović V, Zakić D. Evaluation of Solidified Wastewater Treatment Sludge as a Potential SCM in Pervious Concrete Pavements. in Materials 2022, The Special Issue Industrial Symbiosis and Development of New Materials or Products in Building Sector. 2022;15(14).
doi:https://doi.org/10.3390/ma15144919 .

Govedarica, Ognjen, Aškrabić, Marina, Hadnađev-Kostić, Milica, Vulić, Tatjana, Lekić, Branislava, Rajaković-Ognjanović, Vladana, Zakić, Dimitrije, "Evaluation of Solidified Wastewater Treatment Sludge as a Potential SCM in Pervious Concrete Pavements" in Materials 2022, The Special Issue Industrial Symbiosis and Development of New Materials or Products in Building Sector, 15, no. 14 (2022),
https://doi.org/https://doi.org/10.3390/ma15144919 . .