| Title | Trends toward lower-carbon ultra-high performance concrete (UHPC) - A review |
|---|---|
| ID_Doc | 13962 |
| Authors | Zhang, XH; Wu, ZM; Xie, J; Hu, X; Shi, CJ |
| Title | Trends toward lower-carbon ultra-high performance concrete (UHPC) - A review |
| Year | 2024 |
| Published | |
| Abstract | The development of ultra-high performance concrete (UHPC) with lower carbon emission has conducted by many researchers. However, there is a lack of quantitative comparison of carbon reduction efficiency, such as carbon emission and energy consumption values, of UHPC materials with various components. This paper reviews the trends toward lower-carbon UHPC based on Life Cycle Assessment related to the used materials, especially different binders, aggregates, and steel fibers. The environmental indicators, including embodied carbon emissions (EC), embodied energy consumption (EE), and embodied CO2 index (CI) value, of UHPC mixtures in published paper are discussed. Since compressive strength is an important indicator, the minimum value of compressive strength of UHPC should be greater than 120 MPa in the assessment process. Moreover, the effectiveness of using various low-carbon alternatives is discussed and then ranked according to the reduction degrees of EC and EE. Results found that ultra-high performance geopolymer concrete (UHPGC) shows the lowest EC and EE and the highest CI. This indicates that UHPGC has decreased carbon emissions without compromising compressive strength. The use of supplementary cementitious materials and recycled powder obtained from waste aggregates to substitute cement is another effective way to reduce EE and EC. However, using waste aggregates or waste fibers to replace conventional aggregates or steel fibers is less efficient than cement replacement with supplementary cementitious materials (SCMs). Especially, the use of waste aggregate leads to negligible reductions in EC and EE. The study seeks to find out the most promising route for low-carbon UHPC in the circular economy through identifying low-carbon alternatives, which has great significance in designing lowcarbon UHPC. |
Similar Articles
| ID | Score | Article |
|---|---|---|
15452
|
Moreno-Juez, J; Vegas, IJ; Gebremariam, AT; Garcia-Cortes, V; Di Maio, F Treatment of end-of-life concrete in an innovative heating-air classification system for circular cement-based products(2020) | |
| 17362
|
Backes, JG; Del Rosario, P; Petrosa, D; Traverso, M; Hatzfeld, T; Günther, E Building Sector Issues in about 100 Years: End-Of-Life Scenarios of Carbon-Reinforced Concrete Presented in the Context of a Life Cycle Assessment, Focusing the Carbon Footprint(2022)Processes, 10, 9 | |
| 3251
|
Chen, LJ; Huang, ZY; Pan, W; Su, RKL; Zhong, Y; Zhang, Y Low carbon concrete for prefabricated modular construction in circular economy: An integrated approach towards sustainability, durability, cost, and mechanical performances(2024) | |
| 14750
|
Kravchenko, E; Sauerwein, M; Besklubova, S; Ng, CWW A comparative life cycle assessment of recycling waste concrete powder into CO2-Capture products(2024) | |
| 24272
|
Hertel, M; Rempel, S Evaluation of new concrete regarding the load-bearing behavior and the greenhouse gas reduction in the manufacturing process(2023)Beton- Und Stahlbetonbau, 118, 1 | |
| 29376
|
Hanuseac, L; Dumitrescu, L; Barbuta, M; Baran, I; Bejan, G Eco-Mechanical Index of Lightweight Concrete Mixtures with Recycled Materials(2020) | |
| 16326
|
Roychand, R; Li, J; Kilmartin-Lynch, S; Saberian, M; Zhu, JS; Youssf, O; Ngo, T Carbon sequestration from waste and carbon dioxide mineralisation in concrete-A stronger, sustainable and eco-friendly solution to support circular economy(2023) | |
| 17992
|
Munir, Q; Lahtela, V; Kärki, T; Koivula, A Assessing life cycle sustainability: A comprehensive review of concrete produced from construction waste fine fractions(2024) | |
| 20930
|
Al-Hamrani, A; Kucukvar, M; Alnahhal, W; Mahdi, E; Onat, NC Green Concrete for a Circular Economy: A Review on Sustainability, Durability, and Structural Properties(2021)Materials, 14, 2 | |
| 13000
|
Stengel, T; Kustermann, A Life cycle assessment of concrete made of 100% recycled aggregate compared to normal concrete(2024) |