Influence of interfacial transition zone on engineering properties of the concrete manufactured with recycled ceramic aggregate

Cesar Medina, Wenzhong Zhu, Torsten Howind, Maria Isabel Sanchez De Rojas, Moises Frias

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The influence of the local micro-properties of the interfacial transition zone (ITZ) on macro-properties on the behaviour concretes is studied for recycled concretes made with 20% and 25% recycled ceramic aggregate from sanitary ware waste. This study carried out using nanoindentation and SEM technique aims to explore interface thickness and variations in its elastic modulus. The results show that the minimum and mean values of the elastic modulus and the ITZ thickness impact concrete mechanical and elastic properties to different degrees. Finally, that nanoindentation provides an indispensable tool for studying and assessing the effect of new materials (e.g. recycled aggregates) on the micromechanical properties of the interfacial transition zone (ITZ) and its effect on engineering properties (compressive and splitting tensile strength and modulus of elasticity) of these new concretes.
Original languageEnglish
Pages (from-to)83-93
JournalJournal of Civil Engineering and Management
Volume21
Issue number1
DOIs
Publication statusPublished - 2 Jan 2015

Keywords

  • modulus of elasticity
  • interfacial transition zone
  • compressive and splitting tensile strength
  • recycled ceramic concrete

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