A review on concrete creep characteristics and its evaluation on high-strength lightweight concrete

Se Hee Hong, Jin Seok Choi, Tian Feng Yuan, Young Soo Yoon

Research output: Contribution to journalReview articlepeer-review

7 Citations (Scopus)

Abstract

This study conducted a comprehensive investigation into concrete creep. First, the creep mechanisms and parameters of high-strength lightweight concrete (HSLC) were introduced. Then, creep characteristics of high-strength concrete (HSC) and lightweight concrete (LWC) were analyzed and reviewed. It has been shown that HSC can improve creep resistance by making the cement matrix dense through incorporation of admixtures such as silica fume or changing the curing conditions. In addition, the porous characteristics of the lightweight material weakened the stiffness of the LWC and negatively affected the creep properties. It is unclear whether HSLC can be applied to the existing creep model because high-strength and lightweight characteristics show conflicts of creep properties. In this study, creep experiments were performed to evaluate the suitability with the creep models using three HSLC mixtures. Among them, the Comité Euro-International Du Béton and Fédération Internationale de la Précontrainte (CEB-FIP) creep model is not only applicable to HSC, but also has the oven-dried density as a parameter, so it was found to be the most suitable model for HSLC. Furthermore, HSLC showed a comparable creep coefficient with conventional normal-weight HSC, which has similar compressive strength despite securing lightness and showed excellent creep resistance. It is expected that HSLC may provide a new approach and solution in the construction industry and improve its feasibility.

Original languageEnglish
Pages (from-to)230-251
Number of pages22
JournalJournal of Materials Research and Technology
Volume22
DOIs
Publication statusPublished - 2023 Jan

Bibliographical note

Funding Information:
This work is supported by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 22NANO-C156177-03).

Publisher Copyright:
© 2022 The Author(s).

Keywords

  • Creep
  • High-strength concrete
  • High-strength lightweight concrete
  • Hollow microspheres
  • Lightweight aggregate
  • Lightweight concrete

ASJC Scopus subject areas

  • Ceramics and Composites
  • Biomaterials
  • Surfaces, Coatings and Films
  • Metals and Alloys

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