Development of Hybrid Alkaline Activator for the Formulation of Geopolymer Concrete

ONKAR SHARAD; KAPIL KUMAR SONI

doi:10.36948/ijfmr.2026.v08i03.79249

Development of Hybrid Alkaline Activator for the Formulation of Geopolymer Concrete

Author(s)	ONKAR SHARAD, KAPIL KUMAR SONI
Country	India
Abstract	An alternative to conventional Portland cement-based concrete, geopolymer concrete has attracted a lot of attention as a result of the rising need for eco-friendly and sustainable building materials. Fly ash and ground granulated blast furnace slag (GGBS), two industrial by-products rich in aluminosilicates, may be alkaline activated to generate geopolymers. These geopolymers show promise as a means to lessen the building industry's carbon emissions. In order to improve the performance properties of geopolymer concrete, this research aims to create and optimise a hybrid alkaline activator that employs activator solutions based on both potassium and sodium. Geopolymer concrete's fresh and hardened qualities were tested by methodically varying the hybrid activator formulation's alkali content, silicate modulus, and sodium-to-potassium ratio. Time to set, compressive strength, workability, and durability were some of the key performance indicators that were evaluated experimentally. Using scanning electron microscopy (SEM), XRD, and Fourier transform infrared spectroscopy (FTIR), the hybrid activator's effects on the reaction mechanisms and gel formation processes were further clarified. The results showed that the mechanical strength, setting properties, microstructural integrity, and long-term durability were all improved by the hybrid alkaline system. This optimised activator formulation is ideal for structural and precast applications because to its compressive strengths above 40 MPa at 28 days, enhanced resistance to chemical attack, and thermal stability. In order to achieve global sustainability goals while fine-tuning the geopolymerization process and tailoring the performance of geopolymer concrete for varied building applications, this study suggests that developing a hybrid alkaline activator is a potential method.
Keywords	Hybrid Alkaline, Geopolymer, microstructural
Field	Engineering
Published In	Volume 8, Issue 3, May-June 2026
Published On	2026-05-23
DOI	https://doi.org/10.36948/ijfmr.2026.v08i03.79249

View / Download PDF File

E-ISSN 2582-2160

doi

CrossRef DOI is assigned to each research paper published in our journal.

IJFMR DOI prefix is
10.36948/ijfmr

Downloads

Research Paper Format Copyright Permission Form and Undertaking Form Cover Page Vol 8 Isu 3 Cover Page Vol 8 Isu 2 Cover Page Vol 8 Isu 2

All research papers published on this website are licensed under Creative Commons Attribution-ShareAlike 4.0 International License, and all rights belong to their respective authors/researchers.

CC-BY-SA

About IJFMR Fees & Payment Current Issue Publication Archive	Submit Research Paper Track Submission Status Publication Guidelines Publication Ethics Peer Review & Plagiarism	Join as a Reviewer Editors & Reviewers Reviewer Referral Program Get Reviewer Membership Certi.	Website/Journal Policies Usage Policy Content Policies Privacy Policy

Contact Us		+91-9687-828-838	editor@ijfmr.com

International Journal For Multidisciplinary Research

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Development of Hybrid Alkaline Activator for the Formulation of Geopolymer Concrete

Share this