Search results for "Monte Carlo modelling"

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Physico-chemical evolution of low-pH cements : influence of the temperature and the retention mechanisme of alkalins

2010

Because of their high alkalinity, Portland cement (OPC)-based materials may have deleterious effects in an underground waste repository. A solution would be to use low-alkalinity cements (also referred as low-pH cements) generating interstitial solutions with a reduced pH (11 instead of 13.5 for OPC), and thus showing an improved chemical compatibility with the repository environment. In this work, the investigated formulations were based on binary (OPC / silica fume) or ternary (OPC / silica fume / slag or fly ash) blends, with high substitution levels of CEM I (from 30% to 80%). This research project met two main objectives: (i) study the chemical evolution of low-pH cements at 50°C or 80…

Low pH bindersModélisation Monte CarloLaitierAlcalinsMonte Carlo modellingCendres volantesAlkalisBlastfurnace slagFly ash[ PHYS.COND.CM-GEN ] Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]TempératureGeological repositoryRétentionC-(A)-S-H[CHIM.OTHE] Chemical Sciences/Other[PHYS.COND.CM-GEN] Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other][PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other][ CHIM.OTHE ] Chemical Sciences/OtherStockage géologiqueSilica fumeFumée de silice[CHIM.OTHE]Chemical Sciences/OtherLiants bas pH
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