@article{MTMT:34074719,
	title = {Effect of Moisture Condition and the Composition of Aggregate from Demolition Waste on Strength and Workability Properties of Recycled Concrete},
	url = {https://m2.mtmt.hu/api/publication/34074719},
	author = {Kashkash, Saied and Czoboly, Olivér Attila and Orbán, Zoltán},
	doi = {10.3390/buildings13071870},
	journal-iso = {BUILDINGS-BASEL},
	journal = {BUILDINGS},
	volume = {13},
	unique-id = {34074719},
	abstract = {Large quantities of construction and demolition waste are generated annually, and in many parts of the world, it is disposed of in landfills. Utilizing this waste to produce coarse aggregates for concrete production offers a potentially sustainable approach that mitigates environmental impacts. Despite the widespread encouragement of using recycled aggregates as a substitute for natural coarse aggregates, practical applications remain limited, and the concrete production industry continues to primarily rely on exploiting natural resources. The recycling of concrete waste derived from the demolition of obsolete or damaged buildings as structural concrete has been seldom realized thus far, primarily due to regulatory constraints and concerns regarding technological difficulties. This paper presents a case study to demonstrate that, with meticulous preparation, concrete waste from a demolished building can be rendered suitable for use as structural concrete. The experimental investigation examined how the proportion of recycled aggregates obtained from a demolished building and the moisture content influenced the properties of fresh and hardened concrete. The results revealed an increase in the compressive strength of the hardened recycled concrete as a higher proportion of recycled coarse aggregate was incorporated into the mixture. Moreover, pre-soaked recycled coarse aggregates were found to improve the workability of the recycled concrete mixture significantly. The results highlight the significant potential of utilizing concrete waste as a valuable resource in the production of ready-mix concrete for structural applications, provided that appropriate measures are taken to optimize its properties.},
	keywords = {Sustainable concrete; recycled aggregates moisture condition; recycled concrete workability; recycled concrete compressive strength; construction waste recycling},
	year = {2023},
	eissn = {2075-5309},
	orcid-numbers = {Czoboly, Olivér Attila/0000-0001-6862-3851; Orbán, Zoltán/0000-0002-9721-6216}
}

@misc{MTMT:33176081,
	title = {IMPROVING THE PERFORMANCE OF RECYCLED CONCRETE FOR STRUCTURAL APPLICATIONS},
	url = {https://m2.mtmt.hu/api/publication/33176081},
	author = {Kashkash, Saied and Orbán, Zoltán and Czoboly, Olivér Attila},
	unique-id = {33176081},
	abstract = {Concrete is the most widely used constructionmaterial in the world, and its use is projected to increase even more in the future. However, the production and use of concrete in the construction industry generates huge amounts of CO2 emissions with currently used technology. The construction of concrete structures will also be made more difficult in the future because the aggregate traditionally used to make concrete is becoming increasingly difficult to obtain. Aggregate is a non-renewable raw material, its supplies are depleting and its extraction is increasingly energy-intensive and environmentally damaging.
		Because existing concrete structures deteriorate over time, they will inevitably have to be demolished and end up as demolition waste. The disposal of concrete waste has also become a significant environmental problem, with the amount of concrete waste from the construction industry going to landfill increasing every year. For these reasons, a solution for the proper treatment and recycling of construction concrete waste is of increasing importance to society and the technological process of solving this problem should become a standard undertaking for the civil engineering profession.
		For a wide range of industrial applications of recycled concrete, it is necessary to increase the performance of concrete products made from recycled ingredients. This not only concerns strength properties but also other characteristics such as durability and workability. To optimize the manufacturing process, it is necessary to improve the preparation and testing methodology prior to the concrete mix design. Based on the measurable properties of a given concrete waste raw material, even in the pre-processing stage, the composition of the recycled concrete mix can be optimized for specific applications.
		This paper describes the applied testing and design methodology for a case study in Hungary and shows the potential structural applications of the recycled concrete produced},
	year = {2022},
	orcid-numbers = {Orbán, Zoltán/0000-0002-9721-6216; Czoboly, Olivér Attila/0000-0001-6862-3851}
}

@misc{MTMT:33170999,
	title = {Recycling of concrete. előadás},
	url = {https://m2.mtmt.hu/api/publication/33170999},
	author = {Kashkash, Saied},
	unique-id = {33170999},
	year = {2022}
}

@misc{MTMT:33118882,
	title = {Sustainable and additive construction technologies. előadás},
	url = {https://m2.mtmt.hu/api/publication/33118882},
	author = {Orbán, Zoltán and Kashkash, Saied},
	unique-id = {33118882},
	year = {2022},
	orcid-numbers = {Orbán, Zoltán/0000-0002-9721-6216}
}

@article{MTMT:32523826,
	title = {The effect of recycled tyre steel fibers on the properties of concrete},
	url = {https://m2.mtmt.hu/api/publication/32523826},
	author = {Souphavanh, Senesavath and Salem, Ali and Kashkash, Saied and Bintul, Zehra and Orbán, Zoltán},
	doi = {10.1556/606.2021.00388},
	journal-iso = {POLLACK PERIODICA},
	journal = {POLLACK PERIODICA: AN INTERNATIONAL JOURNAL FOR ENGINEERING AND INFORMATION SCIENCES},
	volume = {17},
	unique-id = {32523826},
	issn = {1788-1994},
	year = {2022},
	eissn = {1788-3911},
	pages = {43-49},
	orcid-numbers = {Salem, Ali/0000-0001-6176-8345; Orbán, Zoltán/0000-0002-9721-6216}
}

@article{MTMT:32502988,
	title = {Sustainable design of concrete using industrial additives and wastes},
	url = {https://m2.mtmt.hu/api/publication/32502988},
	author = {Zehra, Bintul and Salem, Ali and Senesavath, Souphavanh and Kashkash, Saied and Orbán, Zoltán},
	doi = {10.1556/606.2020.00250},
	journal-iso = {POLLACK PERIODICA},
	journal = {POLLACK PERIODICA: AN INTERNATIONAL JOURNAL FOR ENGINEERING AND INFORMATION SCIENCES},
	volume = {16},
	unique-id = {32502988},
	issn = {1788-1994},
	year = {2021},
	eissn = {1788-3911},
	pages = {19-24},
	orcid-numbers = {Zehra, Bintul/0000-0001-9618-7129; Salem, Ali/0000-0001-6176-8345; Orbán, Zoltán/0000-0002-9721-6216}
}

@article{MTMT:32497764,
	title = {Újrahasznosított és visszanyert, tört adalékanyag alkalmazhatósága betonban},
	url = {https://m2.mtmt.hu/api/publication/32497764},
	author = {Czoboly, Olivér and Kashkash, Saied and Orbán, Zoltán and Kashkash, Saied},
	doi = {10.17168/MEIP.2021.70.25},
	journal-iso = {MAGYAR ÉPÍTŐIPAR},
	journal = {MAGYAR ÉPÍTŐIPAR},
	volume = {70},
	unique-id = {32497764},
	issn = {0025-0074},
	year = {2021},
	pages = {25-28},
	orcid-numbers = {Orbán, Zoltán/0000-0002-9721-6216}
}

@article{MTMT:32087141,
	title = {The influence of utilizing recycled and reclaimed coarse aggregates in producing concrete for structural applications},
	url = {https://m2.mtmt.hu/api/publication/32087141},
	author = {Kashkash, Saied and Orbán, Zoltán and Czoboly, O.},
	doi = {10.17559/TV-20200527092654},
	journal-iso = {TEH VJESN},
	journal = {TEHNICKI VJESNIK-TECHNICAL GAZETTE},
	volume = {28},
	unique-id = {32087141},
	issn = {1330-3651},
	year = {2021},
	eissn = {1848-6339},
	pages = {1025-1031},
	orcid-numbers = {Orbán, Zoltán/0000-0002-9721-6216}
}

@{MTMT:33563590,
	title = {Towards green concrete and sustainable construction for better environment},
	url = {https://m2.mtmt.hu/api/publication/33563590},
	author = {Kashkash, Saied and Orbán, Zoltán},
	booktitle = {Abstract book for the 16th MIKLÓS IVÁNYI INTERNATIONAL PHD & DLA SYMPOSIUM},
	unique-id = {33563590},
	year = {2020},
	orcid-numbers = {Orbán, Zoltán/0000-0002-9721-6216}
}