Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durability
This study focuses on the development of low-cement eco-concretes incorporating recycled concrete aggregates (RCA) and waste materials such as wood ashes, aiming to achieve a balance between sustainability and mechanical performance. Different concrete mixes were designed with varying cement conten...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2024-12-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3926 |
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| author | N. Brioschi E. Giner Cordero S. Ng C. Paglia |
| author_facet | N. Brioschi E. Giner Cordero S. Ng C. Paglia |
| author_sort | N. Brioschi |
| collection | DOAJ |
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This study focuses on the development of low-cement eco-concretes incorporating recycled concrete aggregates (RCA) and waste materials such as wood ashes, aiming to achieve a balance between sustainability and mechanical performance. Different concrete mixes were designed with varying cement content (240–290 kg/m3) and RCA replacement levels (25%–50% by weight). The materials used included II/A-LL 42.5 R cement, natural calcareous-silica aggregates, RCA from C30/37 concrete, wood waste ashes, and limestone filler. Experimental tests were conducted on fresh and hardened concrete, including workability, compressive strength, elastic modulus, carbonation resistance, freeze-thaw durability, and chloride penetration resistance. Results show that the mixtures with RCA demonstrated similar or better performance compared to conventional concrete, with C6 (using wood ashes from the burner) showing promising compressive strength and durability characteristics. The study demonstrates that these low-cement mixtures, using recycled aggregates and supplementary materials, can meet the durability requirements for sustainable infrastructure applications.
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| format | Article |
| id | doaj-art-1b37b8fafc18426eb713ea93b353dec8 |
| institution | Kabale University |
| issn | 0465-2746 1988-3226 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj-art-1b37b8fafc18426eb713ea93b353dec82025-01-24T12:13:45ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262024-12-017435610.3989/mc.2024.392624Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durabilityN. Brioschi0E. Giner Cordero1S. Ng2C. Paglia3Institute of Materials and Construction, SUPSIShijiazhuang Chang´An YuCai Building Materials Ltd.Shijiazhuang Chang´An YuCai Building Materials Ltd.Institute of Materials and Construction, SUPSI This study focuses on the development of low-cement eco-concretes incorporating recycled concrete aggregates (RCA) and waste materials such as wood ashes, aiming to achieve a balance between sustainability and mechanical performance. Different concrete mixes were designed with varying cement content (240–290 kg/m3) and RCA replacement levels (25%–50% by weight). The materials used included II/A-LL 42.5 R cement, natural calcareous-silica aggregates, RCA from C30/37 concrete, wood waste ashes, and limestone filler. Experimental tests were conducted on fresh and hardened concrete, including workability, compressive strength, elastic modulus, carbonation resistance, freeze-thaw durability, and chloride penetration resistance. Results show that the mixtures with RCA demonstrated similar or better performance compared to conventional concrete, with C6 (using wood ashes from the burner) showing promising compressive strength and durability characteristics. The study demonstrates that these low-cement mixtures, using recycled aggregates and supplementary materials, can meet the durability requirements for sustainable infrastructure applications. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3926eco-concreteCement supplementary materials Recycled concrete aggregatesWood waste ashesLow cement concretestone durability |
| spellingShingle | N. Brioschi E. Giner Cordero S. Ng C. Paglia Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durability Materiales de Construccion eco-concrete Cement supplementary materials Recycled concrete aggregates Wood waste ashes Low cement concrete stone durability |
| title | Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durability |
| title_full | Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durability |
| title_fullStr | Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durability |
| title_full_unstemmed | Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durability |
| title_short | Low-cement eco-concrete and the role of recycled concrete aggregates (RCA), supplementary cementitious materials (SCMs), and other additives in improving sustainability and durability |
| title_sort | low cement eco concrete and the role of recycled concrete aggregates rca supplementary cementitious materials scms and other additives in improving sustainability and durability |
| topic | eco-concrete Cement supplementary materials Recycled concrete aggregates Wood waste ashes Low cement concrete stone durability |
| url | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3926 |
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