A Model to Predict the Amount of Calcium Hydroxide in Concrete Containing Mineral Admixtures

The authors detail the results of an investigation that examined the degree of reactivity of admixtures and their effect on the levels of calcium hydroxide in cement paste. Such admixtures include fly ash and blast furnace slag, Results indicate that reactivity between calcium hydroxide and mineral admixture is dependent on the amount of calcium hydroxide and the degree of hydration of mineral admixtures. Based on these results, the authors formulated a model that predicted the reaction between calcium hydroxide and mineral admixtures, and its validity was verified by comparing calculated data with the data from the tests with cement mortar specimens. It was found that the calculated values of calcium hydroxide correspond well with the test results, and that the parameters of the prediction model are dependent on the physical and chemical characteristics of mineral admixtures.

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  • Authors:
    • Saeki, Tatsuhiko
    • Monteiro, Paulo J M
  • Publication Date: 2005-10


  • English

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  • Accession Number: 01011023
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 2 2005 11:18AM