A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Freeze-thaw resistance of pozzolanic hydrated lime mortars
https://orcid.org/0000-0001-6617-0924
https://orcid.org/0000-0002-0764-9473
https://orcid.org/0000-0002-5210-0228
https://orcid.org/0000-0002-7413-3944
Highlights Comparison of Argical M1000, diatomite and brick dust pozzolans in lime mortars. Comparison of direct and indirect methods used to determine pozzolanic activity. Effect of pozzolanic lime mortar pore structure on freeze thaw resistance. Optimisation of pozzolanic lime mortars for masonry in conservation applications.
Abstract Degradation of hydrated lime mortars subjected to freezing and thawing is common in historic building conservation. The pozzolanic additions, Argical M1000, diatomite (diatomaceous earth) and brick dust, were evaluated for their ability to improve performance for up to 720 days. Pozzolanic reactions influenced the pore structure evolution, mechanical performance, and chemical reactivity of the mortar matrix. Argical-lime mortars exhibited a sudden failure, while a gradual reduction in mechanical strength was observed for mortars containing brick dust. A slower rate of failure in diatomite mortars was attributed to pore refinement, which was associated with superior freeze thaw performance. This study has advanced the current state of the art regarding how pore structure affects lime mortars' freeze and thaw resistance. Therefore it provides spesifications on how to optimise mortars for historic masonry. A key impact is the more effective use of lime mortars for conservation, thereby protecting heritage structures from degredation.
Freeze-thaw resistance of pozzolanic hydrated lime mortars
https://orcid.org/0000-0001-6617-0924
https://orcid.org/0000-0002-0764-9473
https://orcid.org/0000-0002-5210-0228
https://orcid.org/0000-0002-7413-3944
Highlights Comparison of Argical M1000, diatomite and brick dust pozzolans in lime mortars. Comparison of direct and indirect methods used to determine pozzolanic activity. Effect of pozzolanic lime mortar pore structure on freeze thaw resistance. Optimisation of pozzolanic lime mortars for masonry in conservation applications.
Abstract Degradation of hydrated lime mortars subjected to freezing and thawing is common in historic building conservation. The pozzolanic additions, Argical M1000, diatomite (diatomaceous earth) and brick dust, were evaluated for their ability to improve performance for up to 720 days. Pozzolanic reactions influenced the pore structure evolution, mechanical performance, and chemical reactivity of the mortar matrix. Argical-lime mortars exhibited a sudden failure, while a gradual reduction in mechanical strength was observed for mortars containing brick dust. A slower rate of failure in diatomite mortars was attributed to pore refinement, which was associated with superior freeze thaw performance. This study has advanced the current state of the art regarding how pore structure affects lime mortars' freeze and thaw resistance. Therefore it provides spesifications on how to optimise mortars for historic masonry. A key impact is the more effective use of lime mortars for conservation, thereby protecting heritage structures from degredation.
Freeze-thaw resistance of pozzolanic hydrated lime mortars
https://orcid.org/0000-0001-6617-0924
https://orcid.org/0000-0002-0764-9473
https://orcid.org/0000-0002-5210-0228
https://orcid.org/0000-0002-7413-3944
Highlights Comparison of Argical M1000, diatomite and brick dust pozzolans in lime mortars. Comparison of direct and indirect methods used to determine pozzolanic activity. Effect of pozzolanic lime mortar pore structure on freeze thaw resistance. Optimisation of pozzolanic lime mortars for masonry in conservation applications.
Abstract Degradation of hydrated lime mortars subjected to freezing and thawing is common in historic building conservation. The pozzolanic additions, Argical M1000, diatomite (diatomaceous earth) and brick dust, were evaluated for their ability to improve performance for up to 720 days. Pozzolanic reactions influenced the pore structure evolution, mechanical performance, and chemical reactivity of the mortar matrix. Argical-lime mortars exhibited a sudden failure, while a gradual reduction in mechanical strength was observed for mortars containing brick dust. A slower rate of failure in diatomite mortars was attributed to pore refinement, which was associated with superior freeze thaw performance. This study has advanced the current state of the art regarding how pore structure affects lime mortars' freeze and thaw resistance. Therefore it provides spesifications on how to optimise mortars for historic masonry. A key impact is the more effective use of lime mortars for conservation, thereby protecting heritage structures from degredation.
Freeze-thaw resistance of pozzolanic hydrated lime mortars
Su-Cadirci, Tugce Busra (author) / Calabria-Holley, Juliana (author) / Ince, Ceren (author) / Ball, Richard James (author)
2023-05-29
Article (Journal)
Electronic Resource
English
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