Utilization of Artificial Geopolymer Aggregates in High-Strength Engineered Cementitious Composites (HS-ECC)

Ling Yu Xu, Bo Tao Huang, Jian Guo Dai

Research output: Chapter in book / Conference proceedingChapter in an edited book (as author)Academic researchpeer-review

1 Citation (Scopus)


In this study, high-strength high-ductility Engineered/Strain-Hardening Cementitious Composites (ECC/SHCC) were developed with the combined use of ultra-high-strength cementitious matrix, artificial geopolymer aggregates (GPA), and ultra-high-molecular-weight (UHMW) polyethylene (PE) fibers. Apart from short-term characteristics, the long-term mechanical properties of GPA-ECC were evaluated by an accelerated aging test. It was found that GPA could behave as “additional flaws” in the high-strength matrix, leading to a better strain-hardening ability of ECC. Compared with fine silica sand ECC (FSS-ECC) whose strength indices increased but both tensile ductility and crack resistance decreased after accelerated aging, GPA-ECC showed improved long-term performances in all aspects. Furthermore, the multiple cracks were found to propagate through GPA in GPA-ECC, and the microhardness analysis revealed that the hardness growth of GPA was slower than that of cementitious matrix during the accelerated ageing test, ensuring the role of GPA as “additional flaws” in improving the long-term performance of the ECC material.

Original languageEnglish
Title of host publicationRILEM Bookseries
PublisherSpringer Science and Business Media B.V.
Number of pages11
Publication statusPublished - Feb 2023

Publication series

NameRILEM Bookseries
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852


  • Ductility
  • Engineered Cementitious Composites (ECC)
  • Flaw effect
  • Geopolymer aggregates (GPA)
  • Strain-Hardening Cementitious Composites (SHCC)

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials


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