Investigation and Analysis of Concrete Blocks from Ireland

Kay Wille; Marisa Chrysochoo; James Mahoney; Paul Dunlop

Investigation and Analysis of Concrete Blocks from Ireland

Kay Wille
, Marisa Chrysochoo
, James Mahoney
, Paul Dunlop (Supporting Author)

University of Connecticut

Research output: Book/Report › Commissioned report

93 Downloads (Pure)

Abstract

The University of Connecticut (UCONN) is part of an international research consortium along with University of Ulster, Empa, Concrete Research and Testing LLC and Université Laval 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. The role of UCONN in the consortium was to perform a comprehensive material characterization and analysis study on concrete samples obtained from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress typical of that associated with defective concrete blocks. All had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete while the fourth residence was chosen as a control and had no cracking distress

Original language	English
Commissioning body	Geological Survey of Ireland
Number of pages	20
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/

UN SDGs

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

SDG 9 Industry, Innovation, and Infrastructure
SDG 11 Sustainable Cities and Communities

Keywords

pyrrhotite
aggregates
internal sulfate attack
defective concrete
Donegal

Access to Document

Investigation and Analysis of Concrete Blocks from IrelandFinal published version, 1.74 MB

Cite this

@book{55bc1d99462a4e11b40153cae0fe25ca,

title = "Investigation and Analysis of Concrete Blocks from Ireland",

abstract = "The University of Connecticut (UCONN) is part of an international research consortium along with University of Ulster, Empa, Concrete Research and Testing LLC and Universit{\'e} Laval 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. The role of UCONN in the consortium was to perform a comprehensive material characterization and analysis study on concrete samples obtained from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress typical of that associated with defective concrete blocks. All had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete while the fourth residence was chosen as a control and had no cracking distress",

keywords = "pyrrhotite, aggregates, internal sulfate attack, defective concrete, Donegal",

author = "Kay Wille and Marisa Chrysochoo and James Mahoney and 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/",

}

TY - BOOK

T1 - Investigation and Analysis of Concrete Blocks from Ireland

AU - Wille, Kay

AU - Chrysochoo, Marisa

AU - Mahoney, James

AU - Dunlop, Paul

PY - 2025/3/28

Y1 - 2025/3/28

N2 - The University of Connecticut (UCONN) is part of an international research consortium along with University of Ulster, Empa, Concrete Research and Testing LLC and Université Laval 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. The role of UCONN in the consortium was to perform a comprehensive material characterization and analysis study on concrete samples obtained from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress typical of that associated with defective concrete blocks. All had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete while the fourth residence was chosen as a control and had no cracking distress

AB - The University of Connecticut (UCONN) is part of an international research consortium along with University of Ulster, Empa, Concrete Research and Testing LLC and Université Laval 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. The role of UCONN in the consortium was to perform a comprehensive material characterization and analysis study on concrete samples obtained from four residences in County Donegal, Ireland to investigate the cause of concrete failure. Three of the residences exhibit cracking distress typical of that associated with defective concrete blocks. All had been previously assessed by Donegal County Council following I.S. 465 protocols that confirmed they were constructed from defective concrete while the fourth residence was chosen as a control and had no cracking distress

KW - pyrrhotite

KW - aggregates

KW - internal sulfate attack

KW - defective concrete

KW - Donegal

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

UR - https://pure.ulster.ac.uk/en/publications/55bc1d99-462a-4e11-b401-53cae0fe25ca

M3 - Commissioned report

BT - Investigation and Analysis of Concrete Blocks from Ireland

T2 - Defective Concrete Conference 2025

Y2 - 12 April 2025 through 12 April 2025

ER -

Investigation and Analysis of Concrete Blocks from Ireland

Abstract

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Living the Crisis, Leading the Science: Activism, Evidence and Changing the Narrative of the Irish Defective Concrete Crisis

Not Mica: From Micaceous Myths to Sulfide Science

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

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

Cite this

Investigation and Analysis of Concrete Blocks from Ireland

Abstract

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Activities

Living the Crisis, Leading the Science: Activism, Evidence and Changing the Narrative of the Irish Defective Concrete Crisis

Research output

Not Mica: From Micaceous Myths to Sulfide Science

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

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

Cite this