The chemical durability of cement pastes and geopolymers substituted with dolomite-based quarry-dust

E. Cohen, A. Peled, G. Bar-Nes

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


In recent years, growing environmental concerns have led the cement industry to make modifications in cement production, manifested by the use of supplementary cementitious materials (SCMs) as raw materials within the cement mixture. In the present study the use of dolomite-based quarry-dust (QD) to generate a low-energy, environmentally-friendly structural material was explored. QD was added either as an additive to conventional Portland Cement (PC) or to geopolymeric binders, formed by the alkali activation of local class F fly ash (FA). A significant increase in compressive strength, due to QD addition, was found for both CEM- and FA- based mixtures [1]. The chemical durability of the cementitious systems and FA-based geopolymeric mixtures for which the binder (cement/FA) was replaced with 40% wt. QD was evaluated using two different tests: (a) Expansion tests to assess the durability of these dolomite-based, Mg-rich mixtures - as brucite (Mg(OH)2) may be formed according to Eq. (1) (known as the ‘alkali-carbonate reaction’) and hence induce volume increase and expansion.

Original languageEnglish
Title of host publicationRILEM Bookseries
Number of pages4
StatePublished - 1 Jan 2020

Publication series

NameRILEM Bookseries
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852


  • Cement
  • Dolomite
  • Geopolymer
  • Sulfuric acid resistance
  • Thermal-expansion

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials


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