{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T09:07:22Z","timestamp":1789031242524,"version":"build-2803163510"},"reference-count":26,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T00:00:00Z","timestamp":1788998400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100014809","name":"Technology Agency of the Czech Republic","doi-asserted-by":"publisher","award":["SS07010045"],"award-info":[{"award-number":["SS07010045"]}],"id":[{"id":"10.13039\/100014809","id-type":"DOI","asserted-by":"publisher"}]},{"award":["SS07010045"],"award-info":[{"award-number":["SS07010045"]}],"id":[{"id":"https:\/\/ror.org\/04v0fk911","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The growing production of construction and demolition waste has been stimulating the need to look for sustainable alternatives to natural aggregate used in the production of cement composites. This study evaluates the potential use of recycled brick material as a substitute for natural coarse aggregate in terms of environmental safety, mechanical properties, the solidification effect of the cement matrix, and life cycle assessment (LCA). Recycled brick materials sourced from four recycling yards were characterized using physical, chemical, and leaching tests. Cement composites containing 50%, 70%, 80%, and 100% replacement of natural coarse aggregate with recycled brick material were subsequently designed. The results demonstrated significant variability in the environmental properties of the recycled materials depending on their origin. Compressive strength after 28 days ranged from 31.8 to 36.2 MPa, and all mixtures met the requirements for strength classes C20\/25 to C25\/30 according to \u010cSN EN 206+A2. At the same time, a significant solidification effect of the cement matrix was confirmed, leading to a reduction in the concentrations of dissolved substances by 68.0\u201380.1% and sulfates by 97.8\u201399.2% compared to the original recycled material. A life-cycle assessment demonstrated a gradual reduction in the environmental impacts as the proportion of recycled brick material increased, with the best results achieved by a mixture with 100% replacement of natural aggregate. The results confirm that recycled brick material can be safely used as a full-fledged substitute for natural coarse aggregate while maintaining the required mechanical properties and reducing environmental impacts.<\/jats:p>","DOI":"10.3390\/ma19183847","type":"journal-article","created":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T08:07:41Z","timestamp":1789027661000},"page":"3847","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Utilization of Recycled Brick Aggregate in Cementitious Composites: Mechanical Performance, Cement Matrix Solidification Effect and Life Cycle Assessment"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6605-834X","authenticated-orcid":false,"given":"Vojt\u011bch","family":"V\u00e1clav\u00edk","sequence":"first","affiliation":[{"name":"Department of Environmental Engineering, Faculty of Mining and Geology, VSB\u2014Technical University of Ostrava, 17. 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Mater."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.jclepro.2014.02.040","article-title":"Permeability of Recycled Aggregate Concrete Containing Fly Ash and Clay Brick Waste","volume":"70","author":"Zong","year":"2014","journal-title":"J. Clean. Prod."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"125041","DOI":"10.1016\/j.conbuildmat.2021.125041","article-title":"Durability and Shrinkage Performance of Self-Compacting Concrete Containing Recycled Fine Clay Brick Aggregate","volume":"308","author":"Ge","year":"2021","journal-title":"Constr. Build. Mater."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Casapino-Espinoza, C.A., G\u00f3mez-Sober\u00f3n, J.M., and G\u00f3mez-Sober\u00f3n, M.C. (2025). The Effect of Recycled Crushed Brick Aggregate on the Physical\u2013Mechanical Properties of Earth Blocks. Buildings, 15.","DOI":"10.3390\/buildings15010145"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Zhang, Z., Ji, Y., and Wang, D. (2023). Research Progress on Fiber-Reinforced Recycled Brick Aggregate Concrete: A Review. Polymers, 15.","DOI":"10.3390\/polym15102316"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"226","DOI":"10.1016\/j.jclepro.2018.05.193","article-title":"Potential Use of Brick Waste as Alternate Concrete-Making Materials: A Review","volume":"195","author":"Wong","year":"2018","journal-title":"J. Clean. Prod."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"302","DOI":"10.1016\/j.jhazmat.2014.05.033","article-title":"Composition and Leaching of Construction and Demolition Waste: Inorganic Elements and Organic Compounds","volume":"276","author":"Butera","year":"2014","journal-title":"J. Hazard. Mater."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1016\/j.wasman.2011.09.010","article-title":"Comparison of Batch Leaching Tests and Influence of pH on the Release of Metals from Construction and Demolition Wastes","volume":"32","author":"Ayuso","year":"2012","journal-title":"Waste Manag."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"390","DOI":"10.1016\/j.wasman.2008.01.019","article-title":"Immobilisation of Heavy Metal in Cement-Based Solidification\/Stabilisation: A Review","volume":"29","author":"Chen","year":"2009","journal-title":"Waste Manag."},{"key":"ref_16","unstructured":"(2014). Tests for Mechanical and Physical Properties of Aggregates\u2014Part 6: Determination of Particle Density and Water Absorption (Standard No. EN 1097-6)."},{"key":"ref_17","unstructured":"(2012). Tests for Geometrical Properties of Aggregates\u2014Part 1: Determination of Particle Size Distribution\u2014Sieving Method (Standard No. EN 933-1)."},{"key":"ref_18","unstructured":"(2008). Tests for Geometrical Properties of Aggregates\u2014Part 4: Determination of Particle Shape\u2014Shape Index (Standard No. EN933-4)."},{"key":"ref_19","unstructured":"(2008). Aggregates for Concrete (Standard No. EN 12620+A1)."},{"key":"ref_20","unstructured":"(2012). Ed. 2 Cement\u2014Part 1: Composition, Specifications and Conformity Criteria for Common Cements (Standard No. EN 197-1)."},{"key":"ref_21","unstructured":"Ministry of the Environment of the Czech Republic (2021). Decree No. 273\/2021 Coll., on the Details of Waste Management, Collection of Laws of the Czech Republic."},{"key":"ref_22","unstructured":"(2006). Environmental Management\u2014Life Cycle Assessment\u2014Principles and Framework (Standard No. ISO 14040:2006)."},{"key":"ref_23","unstructured":"(2006). Environmental Management\u2014Life Cycle Assessment\u2014Requirements and Guidelines (Standard No. ISO 14044:2006)."},{"key":"ref_24","unstructured":"(2022). Sustainability of Construction Works\u2014Environmental Product Declarations\u2014Core Rules for the Product Category of Construction Products (Standard No. EN 15804:2012+A2:2019\/AC:2021)."},{"key":"ref_25","unstructured":"(2024). Sustainability of Construction Works\u2014Environmental Product Declarations\u2014Product Category Rules for Concrete and Concrete Elements (Standard No. EN 16757:2024)."},{"key":"ref_26","unstructured":"(2021). Concrete\u2014Specification, Performance, Production and Conformity (Standard No. EN 206+A2)."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/19\/18\/3847\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T08:14:59Z","timestamp":1789028099000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/19\/18\/3847"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,10]]},"references-count":26,"journal-issue":{"issue":"18","published-online":{"date-parts":[[2026,9]]}},"alternative-id":["ma19183847"],"URL":"https:\/\/doi.org\/10.3390\/ma19183847","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,10]]}}}