Crystal structure and hydration characteristics of tricalcium silicate doped with magnesium oxide

Lin Chen, Xu Wang, Xiao Dong Shen, Su Hua Ma, Wei Qiang Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The research investigates various methods to identify magnesium oxide influences on the crystal structure and hydration properties of tricalcium silicate. The f-CaO content of the clinkers were analyzed by chemical analysis. The complex disordered superstructure of the tricalcium silicate has been studied by a joint XRD, NMR and TEM. The results show that MgO exerts a remarkable influence on the polymorphisms of C3S. Mg is not only substitutional atom but also interstitial atom in the crystal lattice of tricalcium silicate. The HRTEM pattern of C3S doped with MgO is covered by the various irregular lattice. The addition of appropriate amount of MgO in raw meal can change the formation kinetic of C3S, slightly perturb the environment of SiO4 4- tetrahedral, modify the crystal structure of C3S and affect the hydration activity. Doped with MgO in the raw meal can slow down the hydration rate of alite slightly in early stage.

Original languageEnglish
Title of host publicationMaterials Science and Engineering Technology
PublisherTrans Tech Publications Ltd
Pages1336-1341
Number of pages6
ISBN (Print)9783038351023
DOIs
StatePublished - 2014
Event2014 International Conference on Materials Science and Engineering Technology, MSET 2014 - Shanghai, China
Duration: 28 Jun 201429 Jun 2014

Publication series

NameAdvanced Materials Research
Volume936
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference2014 International Conference on Materials Science and Engineering Technology, MSET 2014
Country/TerritoryChina
CityShanghai
Period28/06/1429/06/14

Keywords

  • Hydration
  • MgO
  • Structure
  • Tricalcium silicate

Fingerprint

Dive into the research topics of 'Crystal structure and hydration characteristics of tricalcium silicate doped with magnesium oxide'. Together they form a unique fingerprint.

Cite this