Seawater sea-sand engineered/strain-hardening cementitious composites (ECC/SHCC): Assessment and modeling of crack characteristics

Bo Tao Huang, Jia Qi Wu, Jing Yu, Jian Guo Dai, Christopher K.Y. Leung, Victor C. Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

9 Citations (Scopus)

Abstract

Seawater sea-sand Engineered Cementitious Composites (SS-ECC) is a new version of ECC for marine constructions facing the scarcity of freshwater and river/manufactured sand. This study aims to assess and model the crack characteristics of SS-ECC, which are critical for its applications with non-corrosive reinforcements. The influence of sea-sand size, fiber length and fiber dosage on the crack characteristics of SS-ECC was explored. A five-dimensional representation was proposed to assess the overall performance of SS-ECC, by comprehensively considering both the crack characteristics (i.e., crack width and its variation) and the mechanical properties (i.e., compressive and tensile properties). A probabilistic model was also proposed to describe the stochastic nature and evolution of crack width, and it can be used to estimate the critical tensile strain on SS-ECC for a given crack-width limit and cumulative probability. The findings and proposed methods can facilitate the design of SS-ECC in marine and coastal structures.

Original languageEnglish
Article number106292
JournalCement and Concrete Research
Volume140
DOIs
Publication statusPublished - Feb 2021

Keywords

  • Crack assessment
  • Crack characteristics
  • Engineered cementitious composite (ECC)
  • Non-corrosive reinforcement
  • Probabilistic modeling
  • Sea-sand
  • Seawater
  • Strain-hardening cementitious composite (SHCC)

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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