Fly ash-based geopolymer with kappa-carrageenan biopolymer

Z. Li, L. Zhang

Research output: Chapter in Book/Report/Conference proceedingChapter

11 Scopus citations


This chapter for the first time investigates the enhancement of fly ash-based geopolymer with kappa-carrageenan (KC), a seaweed extract. Mechanical tests were conducted to study the improvement of strength and prepeak toughness, and scanning electron microscopy and Fourier transform infrared spectroscopy were employed to study the microstructural and chemical evolution when different amounts of KC were incorporated in the fly ash-based geopolymer paste specimens. The results indicate that when the appropriate amount of KC is incorporated, the strength and prepeak toughness of the geopolymer increases substantially due to the hydrogen bonds and the more condensed geopolymer structure.

Original languageEnglish (US)
Title of host publicationBiopolymers and Biotech Admixtures for Eco-Efficient Construction Materials
PublisherElsevier Inc.
Number of pages20
ISBN (Print)9780081002148
StatePublished - Jan 12 2016


  • Compressive strength
  • Fly ash
  • Geopolymer
  • Kappa-carrageenan
  • Microstructure
  • Tensile strength
  • Toughness

ASJC Scopus subject areas

  • General Engineering
  • General Arts and Humanities
  • General Materials Science


Dive into the research topics of 'Fly ash-based geopolymer with kappa-carrageenan biopolymer'. Together they form a unique fingerprint.

Cite this