Acid and sulfate resistance of alkali-activated ternary blended composite binder

Md Maruf Hossain, Md Rezaul Karim, Muhammad Fauzi Mohd. Zain

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The aim of the study is to evaluate both acid and sulfate resistance of alkali-activated binders (AABs): (1) AAB-1 made up of slag, palm oil fuel ash, and rice husk ash alongside a 2.5 M NaOH solution; and (2) AAB-2 with the same binders except for palm oil fuel ash, which was replaced by fly ash. Acid and sulfate resistance of mortar specimens were evaluated by visual observation, weight change, compressive strength change, and microstructure analysis. AABs mortar specimens showed superior test results in terms of weight loss and compressive strength reduction compared with an ordinary mortar when immersed in 3% H2SO4 and 3% HCl solutions for 270 days. On the other hand, the AAB-1 mortar specimen showed a better sulfate resistance than those of AAB-2 and an ordinary mortar when immersed in 5% Na2SO4 and 5% MgSO4 solutions for 270 days. The microstructure analysis revealed a significant residual gel structure in case of AABs mortar specimens compared with an ordinary mortar specimen after 270 days in both acid and sulfate media.

Original languageEnglish
Article number04017276
JournalJournal of Materials in Civil Engineering
Volume30
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018

Fingerprint

Alkalies
Sulfates
Binders
Mortar
Ashes
Acids
Composite materials
Palm oil
Fuel oils
Compressive strength
Coal Ash
Microstructure
Fly ash
Slags
Gels

Keywords

  • Acid resistance
  • Alkali-activated binder
  • Compressive strength
  • Energy dispersive X-ray (EDX) analysis
  • Scanning electron microscopy (SEM) observation
  • Sulfate resistance

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials

Cite this

Acid and sulfate resistance of alkali-activated ternary blended composite binder. / Hossain, Md Maruf; Karim, Md Rezaul; Mohd. Zain, Muhammad Fauzi.

In: Journal of Materials in Civil Engineering, Vol. 30, No. 2, 04017276, 01.02.2018.

Research output: Contribution to journalArticle

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