The Application of Microbes to the Fly Ash-Based Alkali-Activated Material Performance Containing Slag

Andrie Harmaji, Januarti Jaya Ekaputri*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Microbial agents are often used to enhance the performance of cementitious material. This study presents the utilization of microbes to the properties of fly ash (FA)-based alkali-activated material (AAM) paste, with ground granulated blast furnace slag (GGBFS) as partially FA substitution. Variations of GGBFS-to-FA weight ratio were between 0 and 50%. Raw material and specimens are characterized with X-ray fluorescence, X-ray diffraction, scanning electron microscope, compression test, porosity test, workability test, and setting time. Supplement of microbes to FA-based AAM enhances the strength in a limited amount up to 20% slag replacement due to its workability. AAM without GGBFS addition showed a 28-day compressive strength of 23.00 MPa. The 28-day compressive strength of 20% GGBFS substitution without and with microbes addition was 32.90 MPa and 33.50 MPa, respectively. Microbes application to 20% GGBFS substitution in AAM resulting total porosity (pf) of 19% which was lower than without microbes addition. Microbes increased the workability but fastened the setting time of fresh AAM. The X-ray diffraction (XRD) and scanning electron microscope (SEM) analysis showed the microbes image and precipitation dominated by calcite.

Original languageEnglish
Title of host publicationProceedings of the Green Materials and Electronic Packaging Interconnect Technology Symposium - EPITS 2022
EditorsMohd Arif Anuar Mohd Salleh, Dewi Suriyani Che Halin, Kamrosni Abdul Razak, Mohd Izrul Izwan Ramli
PublisherSpringer Science and Business Media Deutschland GmbH
Pages247-262
Number of pages16
ISBN (Print)9789811992667
DOIs
Publication statusPublished - 2023
EventGreen Materials and Electronic Packaging Interconnect Technology Symposium, EPITS 2022 - Langkawi, Malaysia
Duration: 14 Sept 202215 Sept 2022

Publication series

NameSpringer Proceedings in Physics
Volume289
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

ConferenceGreen Materials and Electronic Packaging Interconnect Technology Symposium, EPITS 2022
Country/TerritoryMalaysia
CityLangkawi
Period14/09/2215/09/22

Keywords

  • Alkali-activated material
  • Calcite
  • Fly ash
  • GGBFS
  • Microbes

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