Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, Ireland: CRT Report No. R-190

Nick Scaglione; Paul Dunlop Dunlop

Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, Ireland: CRT Report No. R-190

Nick Scaglione, Paul Dunlop Dunlop (Supporting Author)

Research output: Book/Report › Commissioned report

4 Downloads (Pure)

Abstract

Concrete Research & Testing (CRT) is part of an international research consortium along with Ulster University, Empa, University of Connecticut, and Université Laval. The consortium has been funded by the Department of Housing, Local Government and Heritage and the Geological Survey of Ireland to investigate the cause of concrete failure in defective properties in County Donegal. CRT’s role in the consortium is to perform petrographic examinations on concrete samples removed from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress of the block walls and had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete blocks. The fourth residence was chosen as a control and had no cracking distress related to defective concrete.

Original language	English
Commissioning body	Geological Survey of Ireland
Number of pages	251
Publication status	Published (in print/issue) - 28 Mar 2025
Event	Defective Concrete Conference 2025: Research Challenges and the Impact of Ireland’s Defective Concrete Crisis - An Grianan Hotel, Burt, County Donegal, Ireland Duration: 12 Apr 2025 → 12 Apr 2025 https://www.defectiveconcreteconference2025.ie/

Keywords

pyrrhotite
defective concrete
internal sulfate attack
mica
petrography

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

Ulster University research consortium report: CRT Report No. R-190 - Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, IrelandFinal published version, 35.8 MBLicence: Unspecified

Cite this

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title = "Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, Ireland: CRT Report No. R-190",

abstract = "Concrete Research & Testing (CRT) is part of an international research consortium along with Ulster University, Empa, University of Connecticut, and Universit{\'e} Laval. The consortium has been funded by the Department of Housing, Local Government and Heritage and the Geological Survey of Ireland to investigate the cause of concrete failure in defective properties in County Donegal. CRT{\textquoteright}s role in the consortium is to perform petrographic examinations on concrete samples removed from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress of the block walls and had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete blocks. The fourth residence was chosen as a control and had no cracking distress related to defective concrete.",

keywords = "pyrrhotite, defective concrete, internal sulfate attack, mica, petrography",

author = "Nick Scaglione and Dunlop, {Paul Dunlop}",

year = "2025",

month = mar,

day = "28",

language = "English",

note = "Defective Concrete Conference 2025 : Research Challenges and the Impact of Ireland{\textquoteright}s Defective Concrete Crisis ; Conference date: 12-04-2025 Through 12-04-2025",

url = "https://www.defectiveconcreteconference2025.ie/",

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TY - BOOK

T1 - Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, Ireland

T2 - Defective Concrete Conference 2025

AU - Scaglione, Nick

AU - Dunlop, Paul Dunlop

PY - 2025/3/28

Y1 - 2025/3/28

N2 - Concrete Research & Testing (CRT) is part of an international research consortium along with Ulster University, Empa, University of Connecticut, and Université Laval. The consortium has been funded by the Department of Housing, Local Government and Heritage and the Geological Survey of Ireland to investigate the cause of concrete failure in defective properties in County Donegal. CRT’s role in the consortium is to perform petrographic examinations on concrete samples removed from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress of the block walls and had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete blocks. The fourth residence was chosen as a control and had no cracking distress related to defective concrete.

AB - Concrete Research & Testing (CRT) is part of an international research consortium along with Ulster University, Empa, University of Connecticut, and Université Laval. The consortium has been funded by the Department of Housing, Local Government and Heritage and the Geological Survey of Ireland to investigate the cause of concrete failure in defective properties in County Donegal. CRT’s role in the consortium is to perform petrographic examinations on concrete samples removed from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress of the block walls and had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete blocks. The fourth residence was chosen as a control and had no cracking distress related to defective concrete.

KW - pyrrhotite

KW - defective concrete

KW - internal sulfate attack

KW - mica

KW - petrography

UR - https://www.gsi.ie/en-ie/events-and-news/news/Pages/Aggregates-Research-Findings.aspx

UR - https://pure.ulster.ac.uk/en/publications/0508bd3c-fccd-42ac-9318-e31d17ce26e8

M3 - Commissioned report

BT - Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, Ireland

Y2 - 12 April 2025 through 12 April 2025

ER -

Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, Ireland: CRT Report No. R-190

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Investigation and Analysis of Concrete Blocks from Ireland

Université Laval: Laboratory Analysis Services in support of Geological Survey Ireland’s "Irish Construction Materials" Projects: Concrete Products

Defective homes in Donegal, Ireland: effect of exposure conditions and concrete quality on pyrrhotite oxidation and internal sulfate attack

Cement and Concrete Research 2023 Le Chatelier Distinguished papers

Cite this

Petrographic Examination of Concrete Samples Removed from Four Residences in County Donegal, Ireland: CRT Report No. R-190

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Research output

Investigation and Analysis of Concrete Blocks from Ireland

Université Laval: Laboratory Analysis Services in support of Geological Survey Ireland’s "Irish Construction Materials" Projects: Concrete Products

Defective homes in Donegal, Ireland: effect of exposure conditions and concrete quality on pyrrhotite oxidation and internal sulfate attack

Prizes

Cement and Concrete Research 2023 Le Chatelier Distinguished papers

Cite this