Activities per year
Abstract
In studying historic, repair and restoration mortars comprised of lime-based material there is an analytical method that answers more questions than any other; transmitted (and reflected) polarised light microscopy (PLM). The present study is based on thin-section analysis of historic and restoration mortars made by the authors in Sweden and Scotland since the 1980’s, previous research [1, 2, 3, 4] and petrographic atlases [5, 6, 7, 8]. This paper is written to be a pedagogically useful complement to previous work.
We present a selection of microphotographs to show the variety of questions that the method can give answers to, such as, in the study of:
-lime binder; source materials, hydraulicity, slaking methods, lime lumps, cracking characteristics
-aggregates; grading, mineralogy/lithology and texture
-additives; inorganic puzzolanic materials and organic materials
-paint layers; different binders, pigments, thicknesses
-pore structure; durability, vapour transport and capillarity
-craftsmanship; various application and working techniques
The aim of this paper is to contribute with more illustrations of reference materials and to illustrate the usefulness of Polarising Light Microscopy as a method for characterising lime-based mortars and to review the most significant analyses parameters.
We present a selection of microphotographs to show the variety of questions that the method can give answers to, such as, in the study of:
-lime binder; source materials, hydraulicity, slaking methods, lime lumps, cracking characteristics
-aggregates; grading, mineralogy/lithology and texture
-additives; inorganic puzzolanic materials and organic materials
-paint layers; different binders, pigments, thicknesses
-pore structure; durability, vapour transport and capillarity
-craftsmanship; various application and working techniques
The aim of this paper is to contribute with more illustrations of reference materials and to illustrate the usefulness of Polarising Light Microscopy as a method for characterising lime-based mortars and to review the most significant analyses parameters.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 5th Historic Mortars Conference |
| Subtitle of host publication | RILEM Proceedings PRO 130 |
| Editors | Jose Ignacio Alvarez, Jose Maria Fernandez, Inigo Navarro , Adrian Duran, Rafael Sirera |
| Place of Publication | Paris |
| Publisher | RILEM Publications S.A.R.L. |
| Pages | 453-467 |
| Number of pages | 15 |
| Volume | PRO 130 |
| ISBN (Electronic) | 9782351582220 |
| ISBN (Print) | 9782351582213 |
| Publication status | Published - 16 Jul 2019 |
| Event | 5th Historic Mortars Conference 2019 - Universidad de Navarra, Pamplona, Spain Duration: 19 Jun 2019 → 21 Jun 2019 Conference number: 5 https://www.unav.edu/en/web/historic-mortars-conference |
Publication series
| Name | RILEM Proceedings |
|---|---|
| Publisher | RILEM Publications S.A.R.L. |
| Volume | 130 |
Conference
| Conference | 5th Historic Mortars Conference 2019 |
|---|---|
| Abbreviated title | HMC 2019 |
| Country/Territory | Spain |
| City | Pamplona |
| Period | 19/06/19 → 21/06/19 |
| Internet address |
Keywords
- Historic Mortar
- petrography
Fingerprint
Dive into the research topics of 'Petrography of historic mortar materials: polarising light microscopy as a method for characterising lime-based mortars'. Together they form a unique fingerprint.Activities
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Getty Conservation Institute, Conservation Guest Scholar
John Hughes (Recipient)
26 Sept 2022 → 16 Dec 2022Activity: Other › Types of Award - Fellowship awarded competitively
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5th Historic Mortars Conference 2019
John Hughes (Member of programme committee)
19 Jun 2019 → 21 Jun 2019Activity: Participating in or organising an event › Participation in conference
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5th Historic Mortars Conference 2019 (Event)
John Hughes (Peer reviewer)
1 Feb 2019 → 30 May 2019Activity: Publication peer-review and editorial work › Publication peer-review
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Animal, vegetable or mineral? Characterising shell-lime, maerl-lime and limestone-lime mortar evidence from the Late Norse and Medieval site of Tuquoy, Orkney
Thacker, M., Hughes, J. & Odling, N., 19 Jun 2019, p. 107-107. 1 p.Research output: Contribution to conference › Abstract › peer-review
Open Access -
Animal, vegetable or mineral? Characterising shell-lime, maerl-lime and limestone-lime mortar evidence from the Late Norse and Medieval site of Tuquoy, Orkney
Thacker, M., Hughes, J. & Odling, N., 16 Jul 2019, Proceedings of the 5th Historic Mortars Conference: RILEM Proceedings PRO 130. Alvarez, J. I., Fernandez, J. M., Navarro, I., Duran, A. & Sirera, R. (eds.). Paris: RILEM Publications S.A.R.L., Vol. PRO 130. p. 758-777 20 p. (RILEM Proceedings; vol. 130).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open AccessFile -
Petrography of historic mortar materials: polarising light microscopy as a method for characterising lime-based mortars
Balksten, K., Lindqvist, J-E., Nitz, B. & Hughes, J., 19 Jun 2019, 5th Historic Mortars Conference. HMC 2019. Book of Abstracts: University of Navarra, Pamplona. 19th - 21st June, 2019. Galindo, J. I. A., Alvarez, J. M. F., Blasco, I. N., Benito, A. D. & Bejarano, R. S. (eds.). Pamplona: University of Navarra, p. 75-75 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution