An experimental investigation into the salt-weathering susceptibility of building limestones.
Saved in:
| Title: | An experimental investigation into the salt-weathering susceptibility of building limestones. |
|---|---|
| Authors: | Scrivano, Simona1 (AUTHOR) simona.scrivano@edu.unige.it, Gaggero, Laura1 (AUTHOR) |
| Source: | Rock Mechanics & Rock Engineering. 2020, Vol. 53 Issue 12, p5329-5343. 15p. |
| Subjects: | Chemical weathering, Building stones, Animal droppings, Limestone, Acid rain, Saline solutions, Deoxynivalenol |
| Abstract: | Dimension and ornamental stones used for built heritage are frequently affected, under all climates, by intense weathering induced by the transport of saline solutions. Accordingly, researchers addressed the weathering mechanisms induced by salts (primarily Na2SO4), the stresses generated in the host material, and the durability of ornamental and dimension stones. This study investigates the behaviour of four sedimentary lithotypes, differing in texture and structure (Breccia Aurora, Rosso Verona, and fine- and coarse-grained Vicenza Stone) exposed to a selection of saline solutions, aiming at evaluating their susceptibility to weathering and the influence of petrographic features on durability. The chosen Na2SO4, MgSO4, Na2CO3, NaCl, and KNO3 solutions include the anions characterizing the major saline sources affecting built heritage: capillary rise, acid rain, atmospheric particulate deposition, bird or other animal scat, and de-icing salt contamination. The petrophysical properties of unweathered and salt-weathered samples were characterized by relative mass variation estimation, capillary rise, and hygroscopic absorption-based porosimetry. Scanning Electron Microscopy coupled with microprobe allowed studying the morphological changes triggered by weathering and analysing the chemical composition of the efflorescence crust. The whole of data, consistently with literature, allowed inferring pore type and distribution as the main intrinsic parameters controlling salt weathering susceptibility. Moreover, Na2SO4 and Na2CO3 proved to be the most harmful, probably due to their ability to crystallize in different hydration stages at room temperature. The comparative analysis of the induced weathering can help to choose suitable dimension stones for new buildings or restoration replacements. [ABSTRACT FROM AUTHOR] |
| Copyright of Rock Mechanics & Rock Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 147102920 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: An experimental investigation into the salt-weathering susceptibility of building limestones. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Scrivano%2C+Simona%22">Scrivano, Simona</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> simona.scrivano@edu.unige.it</i><br /><searchLink fieldCode="AR" term="%22Gaggero%2C+Laura%22">Gaggero, Laura</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Rock+Mechanics+%26+Rock+Engineering%22">Rock Mechanics & Rock Engineering</searchLink>. 2020, Vol. 53 Issue 12, p5329-5343. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Chemical+weathering%22">Chemical weathering</searchLink><br /><searchLink fieldCode="DE" term="%22Building+stones%22">Building stones</searchLink><br /><searchLink fieldCode="DE" term="%22Animal+droppings%22">Animal droppings</searchLink><br /><searchLink fieldCode="DE" term="%22Limestone%22">Limestone</searchLink><br /><searchLink fieldCode="DE" term="%22Acid+rain%22">Acid rain</searchLink><br /><searchLink fieldCode="DE" term="%22Saline+solutions%22">Saline solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Deoxynivalenol%22">Deoxynivalenol</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Dimension and ornamental stones used for built heritage are frequently affected, under all climates, by intense weathering induced by the transport of saline solutions. Accordingly, researchers addressed the weathering mechanisms induced by salts (primarily Na2SO4), the stresses generated in the host material, and the durability of ornamental and dimension stones. This study investigates the behaviour of four sedimentary lithotypes, differing in texture and structure (Breccia Aurora, Rosso Verona, and fine- and coarse-grained Vicenza Stone) exposed to a selection of saline solutions, aiming at evaluating their susceptibility to weathering and the influence of petrographic features on durability. The chosen Na2SO4, MgSO4, Na2CO3, NaCl, and KNO3 solutions include the anions characterizing the major saline sources affecting built heritage: capillary rise, acid rain, atmospheric particulate deposition, bird or other animal scat, and de-icing salt contamination. The petrophysical properties of unweathered and salt-weathered samples were characterized by relative mass variation estimation, capillary rise, and hygroscopic absorption-based porosimetry. Scanning Electron Microscopy coupled with microprobe allowed studying the morphological changes triggered by weathering and analysing the chemical composition of the efflorescence crust. The whole of data, consistently with literature, allowed inferring pore type and distribution as the main intrinsic parameters controlling salt weathering susceptibility. Moreover, Na2SO4 and Na2CO3 proved to be the most harmful, probably due to their ability to crystallize in different hydration stages at room temperature. The comparative analysis of the induced weathering can help to choose suitable dimension stones for new buildings or restoration replacements. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Rock Mechanics & Rock Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=147102920 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00603-020-02208-x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 5329 Subjects: – SubjectFull: Chemical weathering Type: general – SubjectFull: Building stones Type: general – SubjectFull: Animal droppings Type: general – SubjectFull: Limestone Type: general – SubjectFull: Acid rain Type: general – SubjectFull: Saline solutions Type: general – SubjectFull: Deoxynivalenol Type: general Titles: – TitleFull: An experimental investigation into the salt-weathering susceptibility of building limestones. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Scrivano, Simona – PersonEntity: Name: NameFull: Gaggero, Laura IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: 2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 07232632 Numbering: – Type: volume Value: 53 – Type: issue Value: 12 Titles: – TitleFull: Rock Mechanics & Rock Engineering Type: main |
| ResultId | 1 |
