Application of the X-ray absorption technique for monitoring hydration and setting processes in cementitious composites

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Abstract

This paper presents an application of the X-ray absorption technique for monitoring hydration and setting processes in cementitious composites. The method, which is a relatively new approach in concrete research, is based on the measurement of attenuation of a finely collimated beam of X-rays by a sample. The absorption of X-rays by sample is proportional to the material density. Changes of density in a function of time can be related to the absorption and moisture transport within porous media. Although interpretation of the results may be very problematic, chemical and physical reactions associated with hydration may be qualitatively analysed by this technique. This paper is focused on a setting process of cement mortars modified by superabsorbent polymers.
Original languageEnglish
Title of host publicationMaterials Characterisation VI. Computational Methods and Experiments
EditorsCarlos Brebbia, Agnieszka Klemm
Place of PublicationSouthampton, UK
PublisherWIT Press
Pages241-250
Number of pages10
ISBN (Electronic)9781845647216
ISBN (Print)9781845647209
Publication statusPublished - 4 Jun 2013

Publication series

NameWIT Transactions on Engineering Sciences
PublisherWIT Press
Volume77
ISSN (Electronic)1743-3533

Keywords

  • x-ray absorption
  • hydration process
  • cementitious materials
  • soperabsorbent polymers

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    Klemm, A. J., & Baker, P. (2013). Application of the X-ray absorption technique for monitoring hydration and setting processes in cementitious composites. In C. Brebbia, & A. Klemm (Eds.), Materials Characterisation VI. Computational Methods and Experiments (pp. 241-250). (WIT Transactions on Engineering Sciences; Vol. 77). WIT Press. https://www.witpress.com/elibrary/wit-transactions-on-engineering-sciences/77