Recycled Concrete in Foundations: Mechanical and Environmental Insights

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F25%3A00384745" target="_blank" >RIV/68407700:21720/25:00384745 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/buildings15081237" target="_blank" >https://doi.org/10.3390/buildings15081237</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/buildings15081237" target="_blank" >10.3390/buildings15081237</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Recycled Concrete in Foundations: Mechanical and Environmental Insights

Popis výsledku v původním jazyce

Recycled aggregate concrete (RAC) has significant potential for sustainable construction; however, concerns regarding its mechanical performance and environmental impact persist. This study evaluates 26 RAC mixtures with varying cement content, water–cement ratios, and recycled aggregate replacement levels (30%, 50%, and 100%) using two distinct recycling processes. The results confirm that while RAC exhibits a decline in mechanical properties compared to natural aggregate concrete (NAC), lower-strength concrete classes maintain acceptable performance. The Life Cycle Assessment (LCA) indicates that fully replacing the natural aggregate with a high-quality recycled aggregate reduces environmental impact by nearly 50%, primarily due to lower resource depletion and transportation emissions. The study demonstrates that RAC can be optimized for structural applications, particularly in foundation structures, without compromising functional integrity. Unlike previous studies, this research provides a systematic evaluation of how a two-stage recycling process enhances aggregate quality, leading to improved RAC performance, and introduces practical strategies for optimizing RAC durability and mix design for real-world foundation applications. Future research should explore alternative mix designs and durability improvements to enhance RAC’s viability for broader construction applications.

Název v anglickém jazyce

Recycled Concrete in Foundations: Mechanical and Environmental Insights

Popis výsledku anglicky

Recycled aggregate concrete (RAC) has significant potential for sustainable construction; however, concerns regarding its mechanical performance and environmental impact persist. This study evaluates 26 RAC mixtures with varying cement content, water–cement ratios, and recycled aggregate replacement levels (30%, 50%, and 100%) using two distinct recycling processes. The results confirm that while RAC exhibits a decline in mechanical properties compared to natural aggregate concrete (NAC), lower-strength concrete classes maintain acceptable performance. The Life Cycle Assessment (LCA) indicates that fully replacing the natural aggregate with a high-quality recycled aggregate reduces environmental impact by nearly 50%, primarily due to lower resource depletion and transportation emissions. The study demonstrates that RAC can be optimized for structural applications, particularly in foundation structures, without compromising functional integrity. Unlike previous studies, this research provides a systematic evaluation of how a two-stage recycling process enhances aggregate quality, leading to improved RAC performance, and introduces practical strategies for optimizing RAC durability and mix design for real-world foundation applications. Future research should explore alternative mix designs and durability improvements to enhance RAC’s viability for broader construction applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Buildings

ISSN

2075-5309

e-ISSN

2075-5309

Svazek periodika

15

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

23

Strana od-do

—

Kód UT WoS článku

001477273700001

EID výsledku v databázi Scopus

2-s2.0-105003633301