Low carbon geopolymer hollow block—mix design, casting and strength comparison with OPC hollow block

U. Johnson Alengaram, Iftekhair Ibnul Bashar, Marios Soutsos, Karthick Srinivas, Daniel Kong, Arreshvhina Narayanan, Ooi Jieun Lin, P. S. Khoo, Abhey Gupta, William Doherty

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


Cement masonry units are not considered as sustainable due to consumption of fuel, cement and natural resources and embracing alternatives is mandatory. Geopolymer is a green cementitious material and has excellent mechanical properties, consumes low energy in production and emits less carbon dioxide. The effects of paste volume, proportion of alkaline activator and water/solid ratio were investigated to develop self-standing dry mix of geopolymer hollow block and compared with OPC mix. Factors that require attention in casting geopolymer dry mix are discussed in this article. The optimized mix of geopolymer self-standing dry mix is expected to be found between 30 and 35% of geopolymer paste volume for 7.5% of alkaline dosage and alkaline molar ratio of 1.00.

Original languageEnglish
Title of host publicationProceedings of AICCE'19
Subtitle of host publicationTransforming the Nation for a Sustainable Tomorrow
Number of pages13
Publication statusPublished - 2020

Publication series

NameLecture Notes in Civil Engineering
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565


  • Dry mix
  • Failure pattern
  • Geopolymer
  • Hollow masonry unit/block
  • Low carbon

Cite this