Filtration of silica particles from a low-pH cementitious grout
2016 (English)In: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 105, 29-34 p.Article in journal (Refereed) PublishedText
Spent nuclear fuel is stored in rock depositories. Swelled bentonite around the stored capsules prevents eventual spread of radioactive material by ground water. The pH-value of the ground water in contact with bentonite shall be less than 11 not to affect the swelling capacity of the bentonite. Therefore cementitious grout with low pH-value is used to grout these depositories. There is a risk that pH-value of this grout can locally increase due to filtration at fracture constriction and influence pH-value of ground water. Chemical SEM EDAX-analysis indicates that there is no risk of increasing of PH-value in this grout.
Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 105, 29-34 p.
Filtration, Low-pH cementitious grouts, Silica fume, Spent nuclear fuel, SEM-EDAX, Chemical analysis
IdentifiersURN: urn:nbn:se:kth:diva-183186DOI: 10.1016/j.conbuildmat.2015.12.054ISI: 000369190800003ScopusID: 2-s2.0-84954093714OAI: oai:DiVA.org:kth-183186DiVA: diva2:908946
QC 201603032016-03-032016-03-032016-03-03Bibliographically approved