STABILITY OF MACRODEFECT-FREE CEMENT.

Chi Sun Poon, L. E. Wassell, G. W. Groves

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

The effect of water immersion on the strength and dimension stability of macrodefect-free (MDF) cement has been studied. The results show that the polymer phase in the MDF matrix is unstable in water. Prolonged immersion resulted in substantial expansion and leaching of the matrix. Microstructural changes were examined by scanning electron microscopy. X-ray diffraction, and infrared spectroscopy. The cause of weakening of the matrix is thought to be the modification of the cement/polymer interface through the hydration of anhydrous grains. Methods of improving the performance of MDF pastes in water have been considered.
Original languageEnglish
Pages (from-to)993-996
Number of pages4
JournalMaterials Science and Technology
Volume3
Issue number12
Publication statusPublished - 1 Dec 1986
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

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