A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Suitability of Excavation Clay Wastes for Sustainable Earthen Construction
https://orcid.org/https://orcid.org/0009-0009-4434-348X
https://orcid.org/https://orcid.org/0000-0001-8661-2267
https://orcid.org/https://orcid.org/0000-0002-5746-6886
Achieving net-zero emissions by 2050 is driving innovation across the construction industry. Within the industry, there is no component in greater need for change than concrete. The carbon emissions associated with concrete production could be reduced if radical changes to the industry took place. Calcined clay is a growing area of research interest, with its value in LC3 concrete showing great potential. Research beyond concrete-based applications, however, is sparse. This chapter will review the reactivity of calcined clays and assess their suitability as pozzolanic materials. The high reactivity potential of kaolinite is well established across literature; however, the reactivity of low-grade excavation waste comprising 2:1 clay minerals is underexplored. This study thereby assesses the chemical properties and reactivity potential of waste clays and therefore their potential as a polymer. Isothermal calorimetry and bound water R3 tests confirmed that certain excavation wastes exhibit similarities to pure 2:1 minerals like bentonite. While kaolinite is preferred, moderate to high proportions of 2:1 minerals demonstrate potential as supplementary cementitious materials. The novelty of this research is that pozzolanic waste will be applied within earth, rather than concrete. The lower strength requirements of earthen structures alongside typically poor durability properties will be examined in future studies. This study of chemical performance within earthen applications will further demonstrate the value of calcined clay, an abundant yet low-carbon material, thereby facilitating the industry’s transition towards net-zero.
Suitability of Excavation Clay Wastes for Sustainable Earthen Construction
https://orcid.org/https://orcid.org/0009-0009-4434-348X
https://orcid.org/https://orcid.org/0000-0001-8661-2267
https://orcid.org/https://orcid.org/0000-0002-5746-6886
Achieving net-zero emissions by 2050 is driving innovation across the construction industry. Within the industry, there is no component in greater need for change than concrete. The carbon emissions associated with concrete production could be reduced if radical changes to the industry took place. Calcined clay is a growing area of research interest, with its value in LC3 concrete showing great potential. Research beyond concrete-based applications, however, is sparse. This chapter will review the reactivity of calcined clays and assess their suitability as pozzolanic materials. The high reactivity potential of kaolinite is well established across literature; however, the reactivity of low-grade excavation waste comprising 2:1 clay minerals is underexplored. This study thereby assesses the chemical properties and reactivity potential of waste clays and therefore their potential as a polymer. Isothermal calorimetry and bound water R3 tests confirmed that certain excavation wastes exhibit similarities to pure 2:1 minerals like bentonite. While kaolinite is preferred, moderate to high proportions of 2:1 minerals demonstrate potential as supplementary cementitious materials. The novelty of this research is that pozzolanic waste will be applied within earth, rather than concrete. The lower strength requirements of earthen structures alongside typically poor durability properties will be examined in future studies. This study of chemical performance within earthen applications will further demonstrate the value of calcined clay, an abundant yet low-carbon material, thereby facilitating the industry’s transition towards net-zero.
Suitability of Excavation Clay Wastes for Sustainable Earthen Construction
https://orcid.org/https://orcid.org/0009-0009-4434-348X
https://orcid.org/https://orcid.org/0000-0001-8661-2267
https://orcid.org/https://orcid.org/0000-0002-5746-6886
Achieving net-zero emissions by 2050 is driving innovation across the construction industry. Within the industry, there is no component in greater need for change than concrete. The carbon emissions associated with concrete production could be reduced if radical changes to the industry took place. Calcined clay is a growing area of research interest, with its value in LC3 concrete showing great potential. Research beyond concrete-based applications, however, is sparse. This chapter will review the reactivity of calcined clays and assess their suitability as pozzolanic materials. The high reactivity potential of kaolinite is well established across literature; however, the reactivity of low-grade excavation waste comprising 2:1 clay minerals is underexplored. This study thereby assesses the chemical properties and reactivity potential of waste clays and therefore their potential as a polymer. Isothermal calorimetry and bound water R3 tests confirmed that certain excavation wastes exhibit similarities to pure 2:1 minerals like bentonite. While kaolinite is preferred, moderate to high proportions of 2:1 minerals demonstrate potential as supplementary cementitious materials. The novelty of this research is that pozzolanic waste will be applied within earth, rather than concrete. The lower strength requirements of earthen structures alongside typically poor durability properties will be examined in future studies. This study of chemical performance within earthen applications will further demonstrate the value of calcined clay, an abundant yet low-carbon material, thereby facilitating the industry’s transition towards net-zero.
Suitability of Excavation Clay Wastes for Sustainable Earthen Construction
Lecture Notes in Civil Engineering
Kioumarsi, Mahdi (editor) / Shafei, Behrouz (editor) / Harding, India (author) / Rengaraju, Sripriya (author) / Al-Tabbaa, Abir (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: 77 ; 913-925
2025-01-09
13 pages
Article/Chapter (Book)
Electronic Resource
English
Statistical analysis of Nkoulou soils properties and suitability for earthen constructions
| Elsevier | 2022