Influence of the Devitrification of the Glass in Porous Aggregates on the Resistance to Alkali in Cement

L. K. Kazantseva, Yu V. Seretkin, S. V. Rashchenko, A. I. Nikitin

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The corrosive effect of alkali in the cement (ASR interaction) on porous aggregates — foam ceramic and geofoamsitals (analogs of foam glass and foam sitals) in an alkaline medium modeling the liquid phase of setting cement was investigated. It was found that the devitrification of glass melt in the process of thermoactivated pore formation increases the ASR-tolerance of foam ceramic aggregates provided that the crystals are uniformly distributed over the wall thickness of the pores. It is shown that in an alkaline medium the active surface of foam ceramic aggregates is encapsulated by crystalline Ca-, Na-aluminosilicates and subsequent ASR interaction ceases.

Original languageEnglish
Pages (from-to)49-55
Number of pages7
JournalGlass and Ceramics (English translation of Steklo i Keramika)
Volume76
Issue number1-2
DOIs
Publication statusPublished - 15 May 2019

Keywords

  • ASR-interaction
  • concrete aggregates
  • crystallization of glass
  • foam ceramic
  • foam glass
  • foam sital
  • geofoamsital

Fingerprint

Dive into the research topics of 'Influence of the Devitrification of the Glass in Porous Aggregates on the Resistance to Alkali in Cement'. Together they form a unique fingerprint.

Cite this