Properties of self-compacting mortars using blends of limestone powder, fly ash, and zeolite powder

Abdul Faheem*, Syed Ali Rizwan, Thomas A. Bier

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The present study investigates the influence of limestone powder, fly ash, zeolite powder, and their blends on some fresh and hardened properties of self-compacting (SC) mortars. Blends of supplementary cementitious materials (SCMs) perform better than a single SCM in cementitious systems. The motivations for the present study include the introduction of novel blends of SCMs like limestone and zeolite powders to provide efficient SC mortars and potential alternatives of fly ash in a period of its short supply. The investigated properties include flow characteristics, shrinkage, pore pressure, hydration kinetics, compressive strength, microstructural characteristics using MIP and SEM, compositional analysis using thermo-gravimetric analysis, hardened density, and relative water absorption. The experimental results indicate that 20% replacement of cement with blend of limestone and zeolite powders led to the most improved response and provided better performance than other studied compositions.

Original languageEnglish
Article number122788
JournalConstruction and Building Materials
Volume286
Number of pages12
ISSN0950-0618
DOIs
Publication statusPublished - 2021

Keywords

  • Fly ash
  • Microstructure
  • Pore pressure
  • Self-compacting mortars
  • Shrinkage
  • Supplementary cementitious materials (SCMs)
  • Zeolite powder

Fingerprint

Dive into the research topics of 'Properties of self-compacting mortars using blends of limestone powder, fly ash, and zeolite powder'. Together they form a unique fingerprint.

Cite this