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SUMMARY:Development of Low-pH Cements for the Immobilisation of Intermedia
 te Level Radioactive Waste. - Regeane Bagonyi\, CUED
DTSTART:20160609T154500Z
DTEND:20160609T163000Z
UID:TALK66296@talks.cam.ac.uk
CONTACT:Magdalena Charytoniuk
DESCRIPTION:Portland cement (PC) is a widely recognised binder for the imm
 obilisation of intermediate level radioactive waste (ILW). However\, this 
 system has limited efficiency due to the high alkalinity associated with P
 C\, which yields extremely aggressive leachates under the repository condi
 tions. Moreover\, the manufacture of PC is not only exceedingly resource a
 nd energy demanding\, but it also has highly detrimental environmental imp
 acts. Hence\, with the objective of address the mentioned issues\, this re
 search has been focused on developing new binder systems with lower or no 
 contents of PC. Two novel cementitiuous materials based on magnesium phosp
 hate (MPC) and reactive magnesium oxide (MgO) were investigated. Methodolo
 gy entailed the development of geochemical models and statistic optimisati
 on of formulations. Further details including the obtained results will be
  present during this talk.
LOCATION: Cambridge University Engineering Department\, Lecture Room 3A
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