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Research
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Alkali-Silica
Reaction
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Microscopy of the Reaction Products |
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Scanning Electron Microscopy -- Secondary Mode
ASR gel formed in a void (from N. P. Hasparyk, P.J.M. Monteiro, and Helena Carasek ACI materials journal, 2000, V97(N4):486-492) |
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Scanning Electron Microscopy -- Backscattered Mode
Cracked aggregates in a mortar due to ASR(from N. P. Hasparyk, P.J.M. Monteiro, and Helena Carasek ACI materials journal, 2000, V97(N4):486-492) Environmental Scanning Electron Microscopy
[from Imaging of ASR Gel by Soft X-ray Microscopy with K.E. Kurtis, P.J.M. Monteiro J. Brown, and W. Meyer-Ilse), CCR journal V28 N3:411-421, (1998).] X-ray microscopy
(a) X-ray image of dry, ground ASR gel from FURNAS dam, Brazil. (b)
X-ray image of ASR gel in saturated Ca(OH)2 solution after 30 minutes.
(c) X-ray image of ASR gel in saturated Ca(OH)2 solution after 30 minutes.
(d) X-ray image of ASR gel in saturated Ca(OH)2 solution after 2 hours.
(e) X-ray image of ASR gel in saturated Ca(OH)2 + 0.01M NaOH solution.
(f) X-ray image of ASR gel in 0.05M NaOH solution after 1 hour. |
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