Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

13 Citaten (Scopus)
162 Downloads (Pure)

Samenvatting

This study aims to investigate the effect of limestone powder (LP) on the reaction of sodium carbonate activated slag. The results show that the incorporated LP up to 30% improves the strength development, especially at advanced curing ages. A slightly accelerated reaction is observed for samples containing low amount of LP (≤5%), while mixture with 10% LP shows the optimized results with respect to the heat release and strength development. Chemical effect of incorporating LP is observed at high replacement levels (≥15%), indicated by the formation of a new phase, natron (Na2CO3·10H2O). Besides, relatively high contents of hydrotalcite-like phases are generated when increasing the dosage of limestone powder. The chemical changes, including the volume changes of generating natron and the transformation of natron to calcite, is potentially responsible for the enhanced mechanical properties.
Originele taal-2Engels
Artikelnummer136
Pagina's (van-tot)1-14
Aantal pagina's14
TijdschriftMaterials and Structures
Volume50
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - 1 apr 2017

Vingerafdruk Duik in de onderzoeksthema's van 'Assessing the chemical involvement of limestone powder in sodium carbonate activated slag'. Samen vormen ze een unieke vingerafdruk.

Citeer dit