UM
Non-contact resistivity measurement for characterisation of the hydration process of cement-paste with excess alkali
He Z.1; Li Z.J.2
2004
Source PublicationAdvances in Cement Research
ISSN09517197
Volume16Issue:1Pages:29-34
AbstractA non-contacting electrical resistivity measurement device was used to investigate the influence of excess alkali on the hydration process of cement paste. The experiment was conducted with several specimens with different water/cement ratios and alkali contents. It was found that the resistivity curves measured using the method can be used to identify different hydration stages, such as dissolving period, competition period, setting period and hardening period. To verify the results of the resistivity measurement, hydration heat rates of cement pastes were measured using a JAF calorimeter. It was found that the resistivity curve and the curve of heat evolution rate of cement were closely related and thus can be used to examine a hydration process. The study showed that the hydration process of a cement paste could be influenced significantly by alkali content and caution must be exercised to control its influence on the early age properties of cement-based materials.
DOI10.1680/adcr.2004.16.1.29
URLView the original
Language英語
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Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Wuhan University
2.Hong Kong University of Science and Technology
Recommended Citation
GB/T 7714
He Z.,Li Z.J.. Non-contact resistivity measurement for characterisation of the hydration process of cement-paste with excess alkali[J]. Advances in Cement Research,2004,16(1):29-34.
APA He Z.,&Li Z.J..(2004).Non-contact resistivity measurement for characterisation of the hydration process of cement-paste with excess alkali.Advances in Cement Research,16(1),29-34.
MLA He Z.,et al."Non-contact resistivity measurement for characterisation of the hydration process of cement-paste with excess alkali".Advances in Cement Research 16.1(2004):29-34.
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