Relationship between water vapor bet specific surface area and chemically bound water of various portland cement and blast furnace slag cement paste

Go Igarashi, Atsushi Teramoto, Ippei Maruyama

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

It is strongly needed to predict and reduce the amount of concrete shrinkage. Prediction of hardened cement paste needs the information of specific surface area, volumetric water, and bulk modulus when it is based on the theory of hydration pressure. For this purpose, it is important to evaluate the water vapor BET surface area and find the way to predict this value. In this study, the specific surface area of various cement paste was determined by water vapor adsorption isotherm and B.E.T theory and chemically bound water of hardened cement of those was determined by thermal gravity analysis. Based on these data, the unique relationship between chemically bound water at the state of 11%RH condition and BET specific surface is found regardless of cement types.

Original languageEnglish
Pages (from-to)1819-1828
Number of pages10
JournalJournal of Structural and Construction Engineering
Volume77
Issue number682
DOIs
Publication statusPublished - 2012 Dec 1

Keywords

  • Chemically bound water
  • Hardened cement paste
  • Ignition loss
  • Water vapor BET specific surface area
  • Water vapor adsorption isotherm

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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