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Can addition of limestone eliminate the expansion of the mortars due to DEF ?

Title: Can addition of limestone eliminate the expansion of the mortars due to DEF ?
Author(s): W. Kurdowski, S. Duszak
Paper category : conference
Book title: International RILEM Workshop on Internal Sulfate Attack and Delayed Ettringite Formation
Editor(s): K. Scrivener and J. Skalny
Print-ISBN: 2-912143-44-6
e-ISBN: 2912143802
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 229 - 235
Total Pages: 7
Nb references: 13
Language: English

Abstract: DEF is a very important problem of concrete technology, not completely solved [1-3] yet. One of methods of elimination of concrete expansion and cracking due to DEF is the addition of natural and artificial pozzolanic materials, chiefly fly ash and slag [4-6]. The addition of limestone was also examined [7]. However, its influence is much less known.Our experiments were focused on the examination of the influence of addition of very pure limestone on the expansion of the mortars. For comparison also low lime fly ash was used. In the experiments Portland cement was used which presented DEF with considerable expansion of water cured mortars after heat treatment.This paper presents the results of these experiments.

Online publication: 2002-09-07
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143802.016

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