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A method to determine binder content in small samples of cementitious material using hydrochloric acid and ICP-OES analysis

Linderoth, O. LU and Johansson, P. LU (2019) In Materials Today Communications
Abstract

A method to determine the binder content in small samples of cementitious material is presented. Microstructural measurements such as sorption balance measurements or TGA (thermogravimetric analysis) require small samples; therefore cement paste is often used instead of mortar or concrete to get representative samples. However, normalizing measured results to a common basis, such as the binder content, enables more realistic measurements to be made with mortar and concrete. The present method focuses on 50–150 mg samples, similar to those used in a sorption balance or TGA. The samples are dissolved in hydrochloric acid, after which the resulting solution is analysed by ICP-OES to determine the Ca-concentration. With knowledge of the... (More)

A method to determine the binder content in small samples of cementitious material is presented. Microstructural measurements such as sorption balance measurements or TGA (thermogravimetric analysis) require small samples; therefore cement paste is often used instead of mortar or concrete to get representative samples. However, normalizing measured results to a common basis, such as the binder content, enables more realistic measurements to be made with mortar and concrete. The present method focuses on 50–150 mg samples, similar to those used in a sorption balance or TGA. The samples are dissolved in hydrochloric acid, after which the resulting solution is analysed by ICP-OES to determine the Ca-concentration. With knowledge of the binders’ chemical composition and the acid volume, the binder content can then be calculated. As Ca is used to calculate the binder content, the method is not suitable for samples with calcareous or dolomitic aggregates.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Cement, Characterization, ICP-OES, Mortar
in
Materials Today Communications
publisher
Elsevier
external identifiers
  • scopus:85066272820
ISSN
2352-4928
DOI
10.1016/j.mtcomm.2019.05.014
language
English
LU publication?
yes
id
5f51606c-16e4-46a2-b24d-637a41400b78
date added to LUP
2019-06-13 12:26:00
date last changed
2019-07-02 04:48:00
@article{5f51606c-16e4-46a2-b24d-637a41400b78,
  abstract     = {<p>A method to determine the binder content in small samples of cementitious material is presented. Microstructural measurements such as sorption balance measurements or TGA (thermogravimetric analysis) require small samples; therefore cement paste is often used instead of mortar or concrete to get representative samples. However, normalizing measured results to a common basis, such as the binder content, enables more realistic measurements to be made with mortar and concrete. The present method focuses on 50–150 mg samples, similar to those used in a sorption balance or TGA. The samples are dissolved in hydrochloric acid, after which the resulting solution is analysed by ICP-OES to determine the Ca-concentration. With knowledge of the binders’ chemical composition and the acid volume, the binder content can then be calculated. As Ca is used to calculate the binder content, the method is not suitable for samples with calcareous or dolomitic aggregates.</p>},
  articleno    = {100538},
  author       = {Linderoth, O. and Johansson, P.},
  issn         = {2352-4928},
  keyword      = {Cement,Characterization,ICP-OES,Mortar},
  language     = {eng},
  month        = {05},
  publisher    = {Elsevier},
  series       = {Materials Today Communications},
  title        = {A method to determine binder content in small samples of cementitious material using hydrochloric acid and ICP-OES analysis},
  url          = {http://dx.doi.org/10.1016/j.mtcomm.2019.05.014},
  year         = {2019},
}