Correlation between reaction and expansion of alkali-carbonate reaction: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Correlation between reaction and expansion of alkali-carbonate reaction

Tong, L. / Tang, M.

Compacted cylinders made of reactive minerals (dolomite and magnesite) and Portland cement in the ratio of 4:1 were prepared to observe the expandability of the two solid-volume-reducing reactions - alkali-dolomite and alkali-magnesite reaction. After measuring the reaction degrees determined by quantitative XRD analysis, it was found that expansion correlated well with the degree of the reaction occurred in the compacts. This result provided a positive evidence towards the previously proposed expansion mechanism, which suggested that the expansion of concrete is due to the formation and growth of the reaction products in the interface between dolomite crystals and the surrounding matrix.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Correlation between reaction and expansion of alkali-carbonate reaction

Tong, L. / Tang, M.

Compacted cylinders made of reactive minerals (dolomite and magnesite) and Portland cement in the ratio of 4:1 were prepared to observe the expandability of the two solid-volume-reducing reactions - alkali-dolomite and alkali-magnesite reaction. After measuring the reaction degrees determined by quantitative XRD analysis, it was found that expansion correlated well with the degree of the reaction occurred in the compacts. This result provided a positive evidence towards the previously proposed expansion mechanism, which suggested that the expansion of concrete is due to the formation and growth of the reaction products in the interface between dolomite crystals and the surrounding matrix.

Correlation between reaction and expansion of alkali-carbonate reaction

Tong, L. / Tang, M.

Compacted cylinders made of reactive minerals (dolomite and magnesite) and Portland cement in the ratio of 4:1 were prepared to observe the expandability of the two solid-volume-reducing reactions - alkali-dolomite and alkali-magnesite reaction. After measuring the reaction degrees determined by quantitative XRD analysis, it was found that expansion correlated well with the degree of the reaction occurred in the compacts. This result provided a positive evidence towards the previously proposed expansion mechanism, which suggested that the expansion of concrete is due to the formation and growth of the reaction products in the interface between dolomite crystals and the surrounding matrix.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Correlation between reaction and expansion of alkali-carbonate reaction

Additional title:

Korrelation zwischen dem Reaktionsablauf und der Ausdehnung bei der Alkalicarbonat-Reaktion

Contributors:

Tong, L. (author) / Tang, M. (author)

Published in:

Cement and Concrete Research ; 25 ; 470-476

Publication date:

1995

Size:

7 Seiten, 9 Bilder, 3 Tabellen, 11 Quellen

ISSN:

DOI:

https://doi.org/10.1016/0008-8846(95)00034-A

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Dolomit , Kalkstein , Portlandzement , Festkörperreaktion , Röntgenanalyse , Reaktionsgeschwindigkeit , Reaktionskinetik , Natriumoxid , Magnesit , Brucit

Similar titles

Correlation Between Reaction and Expansion of Alkali-Carbonate Reaction

Tong, L. / Tang, M. | British Library Online Contents | 1995

Correlation Between Reaction and Expansion of Alkali-Carbonate Reaction

Tong, L. | Online Contents | 1995

Comparison Between Alkali-Silica Reaction and Alkali-Carbonate Reaction

Tang, M. / Deng, M. / Xu, Z. | British Library Conference Proceedings | 2000

Alkali-carbonate rock reaction

Swenson, E.G. / Gillott, J.E. | Engineering Index Backfile | 1964

Alkali carbonate reaction expansion of dolomitic limestone aggregates with porphyrotopic texture

Qian, G. / Deng, M. / Lan, X. et al. | Tema Archive | 2002