Pore-structure and microstructural investigation of organomodified/Inorganic nano-montmorillonite cementitious nanocomposites

Styliani Papatzani, Sotirios Grammatikos, Bijan Adl-Zarrabi, Kevin Paine

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

In the present paper, the effect of three different types of nano-montmorillonite dispersions (nMt) on the (i) microstructure as witnessed by Scanning Electron Microscopy, (ii) long term density measurements and (iii) pore structure as determined via Mercury Intrusion Porosimetry of Portland - limestone cement formulations have been compared, in an effort to determine the upper and lower bound of nMt addition in cementitious nanocomposites. The reference formulation, contained 60% PC and 40% LS by mass of binder aiming at the minimization of clinker and maximization of other constituents. Two aqueous organomodified NMt dispersions (one dispersed with non-ionic fatty alcohol and the other with anionic alkyl aryl sulphonate) and one aqueous inorganic NMt dispersion (dispersed with sodium tripolyphosphate) were added at 0.5, 1, 2, 4 and 5.5% by mass of solids as replacement of Portland cement. The water to solids ratio was kept constant at 0.3. The inorganic nMt showed the greatest potentials for microstructural enhancement. The way in which the level of the nMt platelet separation affected the pastes was discussed. The research reported was part of a much broader project supported by the EU.

Original languageEnglish
Title of host publication2018 6th International Conference on Nano and Materials Science( ICNMS)
PublisherAmerican Institute of Physics Inc.
Pages1 - 5
Number of pages5
ISBN (Electronic)9780735416581
DOIs
Publication statusPublished - 19 Apr 2018
Event2018 6th International Conference on Nano and Materials Science, ICNMS 2018 - Lakeland, USA United States
Duration: 15 Jan 201817 Jan 2018

Publication series

NameAIP Conference Proceedings
Volume1957

Conference

Conference2018 6th International Conference on Nano and Materials Science, ICNMS 2018
CountryUSA United States
CityLakeland
Period15/01/1817/01/18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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