Mechanical and damage similarities of adobe blocks reinforced with natural and industrial fibres

José Concha-Riedel, Federico C. Antico, Gerardo Araya-Letelier

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Adobe is an earthen-based material that consists of the use of a clayey soil and, most of the times, straw fibres to manufacture blocks that are afterwards sundried. This study reviews the use of three types of fibres: vegetal, industrial and animal, for the manufacture of adobe blocks. Overall, all the fibres increase at least one order of magnitude the impact strength of plain adobe blocks and reduced the shrinkage cracking of adobe plasters in at least 50% with respect to plain adobe. Compressive and flexural strength average values were not increased nor decreased by the addition of fibres. The intrinsic variability of the mechanical properties of plain adobe persists with any of the fibres tested in this study. Based on the findings of this study, we recommend using jute fibres with a dosage of 0.5% and a length of 30 mm.

Original languageEnglish
Article numbere-12906
Pages (from-to)1-11
Number of pages11
JournalRevista Materia
Volume25
Issue number4
DOIs
StatePublished - 2020

Keywords

  • Adobe blocks
  • Crack control
  • Impact strength
  • Industrial fibres
  • Natural fibres

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