X-ray microtomography (microCT) of the progression of sulfate attack of cement paste: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

Stock, S.R. / Naik, N.K. / Wilkinson, A.P. / Kurtis, K.E.

High-resolution X-ray computed tomography (i.e., microCT or microtomography) was used to study the sulfate attack of cylinders of Type I cement paste cast with water-cement (w/c) ratios of 0.45, 0.50 and 0.60. Damage levels in samples exposed to a Na₂SO₄ solution with 10,000 ppm sulfate ion concentration were qualitatively rated from 0 (no damage) to 4 (extreme damage) based upon visual examination of the samples' exteriors and microtomography of the samples' interiors. The greater the w/c ratio, the more rapid the onset of sulfate damage. The corners of the cylinders appeared to be particularly susceptible to spalling, and damage may have continued into the cement paste by formation of subsurface cracks.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

Stock, S.R. / Naik, N.K. / Wilkinson, A.P. / Kurtis, K.E.

High-resolution X-ray computed tomography (i.e., microCT or microtomography) was used to study the sulfate attack of cylinders of Type I cement paste cast with water-cement (w/c) ratios of 0.45, 0.50 and 0.60. Damage levels in samples exposed to a Na₂SO₄ solution with 10,000 ppm sulfate ion concentration were qualitatively rated from 0 (no damage) to 4 (extreme damage) based upon visual examination of the samples' exteriors and microtomography of the samples' interiors. The greater the w/c ratio, the more rapid the onset of sulfate damage. The corners of the cylinders appeared to be particularly susceptible to spalling, and damage may have continued into the cement paste by formation of subsurface cracks.

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

Stock, S.R. / Naik, N.K. / Wilkinson, A.P. / Kurtis, K.E.

High-resolution X-ray computed tomography (i.e., microCT or microtomography) was used to study the sulfate attack of cylinders of Type I cement paste cast with water-cement (w/c) ratios of 0.45, 0.50 and 0.60. Damage levels in samples exposed to a Na₂SO₄ solution with 10,000 ppm sulfate ion concentration were qualitatively rated from 0 (no damage) to 4 (extreme damage) based upon visual examination of the samples' exteriors and microtomography of the samples' interiors. The greater the w/c ratio, the more rapid the onset of sulfate damage. The corners of the cylinders appeared to be particularly susceptible to spalling, and damage may have continued into the cement paste by formation of subsurface cracks.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

Additional title:

Röntgen-Mikrotomographie (Mikro-CT) des Fortschreitens von Sulfatangriff auf Zementpasten

Contributors:

Stock, S.R. (author) / Naik, N.K. (author) / Wilkinson, A.P. (author) / Kurtis, K.E. (author)

Published in:

Cement and Concrete Research ; 32 ; 1673-1675

Publication date:

2002

Size:

3 Seiten, 17 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(02)00814-1

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Sulfatmineral , Tomographie , Ion , Wasser-Zement-Wert , Risseinleitung , zerstörungsfreie Prüfung , Röntgenanalyse , Röntgentomographie , Zementpaste

Similar titles

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

Stock, S.R. | Online Contents | 2002

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

Stock, S. R. / Naik, N. K. / Wilkinson, A. P. et al. | British Library Online Contents | 2002

Erratum to "X-ray microtomography (microCT) of the progression of sulphate attack of cement paste" [Cement and Concrete Research 32 (2002) 1673-1675]

Stock, S. R. / Naik, N. N. / Wilkinson, A. P. et al. | British Library Online Contents | 2002

Erratum to "X-ray microtomography (microCT) of the progression of sulphate attack of cement paste" (Cement and Concrete Research 32 (2002) 1673-1675)

Stock, S.R. | Online Contents | 2002

Sulfate Attack on Hardened Cement Paste

Wang, J.G. | Online Contents | 1994