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Title

Effect of temperature on the leaching performance of a simulated cement-based immobilization system. Calcium and hydroxyl behaviour

AuthorsGoñi Elizalde, Sara; Hernández, M. S.; Guerrero Bustos, Ana María; Lorenzo García, M.ª Paz
KeywordsLeaching
Temperature
Cement matrix
Issue DateApr-1996
PublisherElsevier BV
CitationConstruction and Building Materials 10(3): 171-177 (1996)
AbstractCa++ and OH- leaching at 20°C and 40°C have been studied by means of the ANSI/ANS-16.1-1986 test. Mixtures of a Portland cement (Type 1-35) and a synthetic boiling water reactor (BWR) evaporator concentrate solution were prepared at solution/cement ratios of 0.53 and 0.65. After a curing period of 28 days, the samples were submitted to leaching attack in de-ionized water. Monitoring of leaching kinetics and analysis of the leached solid phases showed that the kinetics is controlled by diffusion. The degradation of the material over time is estimated from the calcium effective diffusivity.
Publisher version (URL)http://dx.doi.org/10.1016/0950-0618(95)00082-8
URIhttp://hdl.handle.net/10261/215571
Identifiersdoi: 10.1016/0950-0618(95)00082-8
issn: 0950-0618
Appears in Collections:(IETCC) Artículos
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