Research paper: effect of temperature and moisture on the behaviour of pyritic fill

Behaviour of Pyritic Fill

Amy Taylor and others at the University of Sheffield have published a paper on the in situ monitoring of moisture content and temperature beneath the ground-bearing floor slab of a structure to understand the behaviour of pyritic fill material.

The paper, titled “The Effect of Temperature and Moisture Content on the Behaviour of Pyritic Fill: Development of an In Situ Monitoring System” adds to existing paper on the same topic by Taylor et al., (2013):Ā Taylor, A.J., Cripps, J.C., and Clarke, S.D. (2013). An in-situ monitoring system for natural temperature and relative humidity.Read the rest

Research paper: sulphate-generated heave rates in Ireland

Sulphate-Generated Heave Rates

Bryan McCabe and others at the National University of Ireland, Galway, have published a paper on the quantification of expansion rates of pyritiferous mudstone-siltstone from Ireland.

The paper, titled “Pyritiferous mudstoneā€“siltstone: expansion rate measurement and prediction” adds to existing research on the expansion of pyritic fills published by Maher et al., (2011) and Sutton et al., (2013). McCabe et al., (2015) show that the density of pyritic fill and the depth of submergence in water strongly influence the rate of expansion. Furthermore, the authors found that pyrite content was the major control on the degree of expansion.… Read the rest

Update on Pyrite Resolution Board applications

Pyrite Resolution Board Applications

The Pyrite Resolution Board (PRB) has produced three reports since the Pyrite Remediation Scheme was introduced in February 2014. Further statistics are provided on the PRB website and in recent news articles. See statistics below and follow links for original data.

The Irish Independent reported an update on the Pyrite Remediation Scheme statistics last week for the end of January 2015:

  • Total 632 applications
  • 485 applications Validated
  • 328 applications included in scheme
  • Work at tender stage for 73 dwellings
  • Work completed on 5 dwellings

Statistics reported by the Pyrite Resolution Board for 31st October 2014:

  • Total 590 applications
  • 151 applications in Validation Stage
  • 231 applications at Verification Stage
  • 208 applications included in the scheme

Statistics reported by the Pyrite Resolution Board for 7th October 2014:

  • Total 575 completed applications and 36 commenced applications
  • 144 applications in Validation Stage
  • 220 applications in Verification Stage
  • 2 Verified applications awaiting decision
  • 206 applications included in the scheme
  • Remediation contracts in place for 5 dwellings
  • 3 applications not considered

Statistics reported by the Pyrite Resolution Board for 4th July 2014:

  • Total 521 completed applications and 35 commenced applications
  • 312 applications in Validation Stage
  • 127 applications in Verification Stage
  • 27 Verified applications awaiting decision
  • 52 applications included in the scheme
  • 3 applications not considered
Statistics reported by the Pyrite Resolution Board for 15th April 2014:
  • 418 completed applications and 146 commenced applications
  • 84 applications Validated and referred to Verification Stage
Read the rest