The following collection of Irish pyrite problem videos provides a good introduction to the issues in the Dublin area of Ireland. Please leave a comment or email if you have any comments or suggestions for additional videos.
Introduction to pyrite and the associated engineering problems:
Introduction to pyrite and the associated engineering problems (with particular relevance to housing):
Pyrite damage and remediation:
Damage attributed to possible pyrite in Dublin (first of five short videos):
Introduction to the Irish Standard IS 398-1:
Introduction to the Irish Standard IS 398-2:
I am not responsible for the content of these videos (hosted externally on YouTube) and cannot guarantee their accuracy.… Read the rest
The following is from a recent interview (July 2014) with the chairpersons of the Pyrite Action group. Since around 2011, Pyrite Action has worked relentlessly to represent homeowner’s affected by pyrite problems in Ireland and seek Government intervention. The group should be congratulated on their dedication and progress.
I hope that the interview below, which seeks to understand more about Irish pyrite problems from the perspective of those directly affected, will provide an insight into the campaign and the reality of living with pyrite. In particular it serves as a reminder to industry experts just how devastating the problem is.… Read the rest
State Route 2001 is a 35 km road in Pike County, Pennsylvania, which is undergoing considerable improvements. The Pocono Record (08.03.14) reported that the next major phase of the improvement (Lehman Township) was due to start in March this year but was delayed due to the identification of pyritic rock along the route alignment. Quoting from the article:
“Bore samples taken two years ago for this project did not initially reveal a pyrite problem, but recent borings did show it in various places along the entire project area, which runs from where the last phase ended at Little Egypt Road to Oakridge Road.”
Dealing with the pyritic rock
According to the Pocono Record (08.03.14), engineers from the Pennsylvania Department of Transportation (PennDOT) are now attempting to determine how much pyrite is present and how to mitigate the problem.… Read the rest
This month’s issue of Geoscientist, the magazine of the Geological Society of London features another potential problem resulting from sulfur-species in geological materials – gypsum dissolution.
In the article, titled “A hole lot of trouble” Andy Farrant and Tony Cooper discuss the problems of rock dissolution and the formation of subsidence features such as sinkholes. One of these soluble minerals is gypsum, of which there are significant Triassic and Permian deposits in the UK. The authors provide an excellent national-scale map of soluble rocks in England, Wales and Scotland. A quote from the article:
The Herald yesterday (10.07.14) reported that Dublin Zoo had brought in engineers to investigate the cause of cracking noticed some months ago in an office building and restaurant area. However, results were not yet available to confirm the cause of the problem. According to the Herald:
“…monitoring equipment had been placed across a series of the cracks to see if they are widening over time or if they have stabilised.”
Despite pleas from Coalition of Victims of Pyrrhotite (CVAP) in Canada, SNC-Lavalin (the main defendant in the recent pyrrhotite trial) have stated that they will appeal the pyrrhotite judgement, Le Nouvelliste reported yesterday (10.07.14).
In the Superior Court judgement, SNC-Lavalin along with their geologist Alain Blanchette, had been found responsible for 70 % of the pyrrhotite problem. Le Nouvelliste reports that the CVAP spokesman, Yvon Boivin, was “bitterly disappointed” by the decision to appeal, but was continuing with plans to promote the boycotting of SNC-Lavalin. Disappointment was also expressed at the news on the CVAP Facebook page.… Read the rest