Additive Manufacturing of Earth-Based Materials: A Literature Review on Mortar Composition, Extrusion, and Processing Earth

Douglas Rocha, Paulina Faria, Sandra S. Lucas

Research output: Contribution to journalReview articlepeer-review

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Abstract

Increasing concerns about global warming and its impact on the environment reinforce the need for new materials and technologies. Additive manufacturing has become more relevant due to its potential to build sustainable and more energy-efficient constructions. However, the materials employed within the technology are not yet fully sustainable. Researchers employing clay as the main binder have found that, besides protecting the environment, it benefits passive control of indoor temperature and relative humidity and contributes to comfort. The mortar design as well as the necessary technological adaptations for the 3D printing of earth mortars are addressed. From a material perspective, this paper reviewed and analyzed the recent developments in additive manufacturing of clay-based mortars, highlighting the main gaps and providing recommendations for future developments in this field.
Original languageEnglish
Article number202
Number of pages27
JournalMaterials
Volume17
Issue number1
DOIs
Publication statusPublished - 30 Dec 2023

Keywords

  • 3D printing
  • clay-based mortar
  • earthen products
  • eco-efficiency

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