A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CO2 Capturing of Aggregates Extracted from Alkali-Activated GGBS Concrete
CO2-emissions as the main reason for global warming turn out to be a challenging issue in the twenty-first century. Reduction of CO2-emission in the cement and concrete industry by using low-carbon alternative binders on the one hand and carbon-capturing technique on the other hand is an innovative solution for this purpose. Using carbon-capturing techniques for recycled aggregates also leads to superior mechanical, as well as durability properties. The objective of this research is to assess the carbonation possibility of the aggregates extracted from alkali-activated concrete and its consequences on the concrete made with them. In this study, recycled aggregates extracted from alkali-activated ground granulated blast furnace slag (GGBS) concrete produced with natural and recycled aggregates were carbonated. The CO2-absorption rate and its influence on the properties of aggregates were investigated. Recycled aggregates showed up to 4 wt.% CO2-capturing potential, which can result in up to 40% lower water absorption. Moreover, the effect of carbonated aggregates on the mechanical behavior of concrete made with them was investigated which showed an improvement of mechanical properties.
CO2 Capturing of Aggregates Extracted from Alkali-Activated GGBS Concrete
CO2-emissions as the main reason for global warming turn out to be a challenging issue in the twenty-first century. Reduction of CO2-emission in the cement and concrete industry by using low-carbon alternative binders on the one hand and carbon-capturing technique on the other hand is an innovative solution for this purpose. Using carbon-capturing techniques for recycled aggregates also leads to superior mechanical, as well as durability properties. The objective of this research is to assess the carbonation possibility of the aggregates extracted from alkali-activated concrete and its consequences on the concrete made with them. In this study, recycled aggregates extracted from alkali-activated ground granulated blast furnace slag (GGBS) concrete produced with natural and recycled aggregates were carbonated. The CO2-absorption rate and its influence on the properties of aggregates were investigated. Recycled aggregates showed up to 4 wt.% CO2-capturing potential, which can result in up to 40% lower water absorption. Moreover, the effect of carbonated aggregates on the mechanical behavior of concrete made with them was investigated which showed an improvement of mechanical properties.
CO2 Capturing of Aggregates Extracted from Alkali-Activated GGBS Concrete
Lecture Notes in Civil Engineering
Kioumarsi, Mahdi (editor) / Shafei, Behrouz (editor) / Tavasoli, Syamak (author) / Breit, Wolfgang (author)
The International Conference on Net-Zero Civil Infrastructures: Innovations in Materials, Structures, and Management Practices (NTZR) ; 2024 ; Oslo, Norway
The 1st International Conference on Net-Zero Built Environment ; Chapter: 18 ; 205-217
2025-01-09
13 pages
Article/Chapter (Book)
Electronic Resource
English
Thermomechanical performance of blended metakaolin-GGBS alkali-activated foam concrete
| British Library Online Contents | 2017
Thermomechanical performance of blended metakaolin-GGBS alkali-activated foam concrete
| British Library Online Contents | 2017
Thermomechanical performance of blended metakaolin-GGBS alkali-activated foam concrete
| British Library Online Contents | 2017
Thermomechanical performance of blended metakaolin-GGBS alkali-activated foam concrete
| British Library Online Contents | 2017