Experimental analysis of enhanced cement-sand-based geothermal grouting materials

P. Pascual-Muñoz, I. Indacoechea-Vega, D. Zamora-Barraza, D. Castro-Fresno

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)
27 Downloads (Pure)


Nowadays, Ground Source Heat Pumps (GSHP) are achieving significant efficiencies, mostly because of the development of their electromechanical components. However, concepts such as the technical performance of the grouting materials deserve more profound analysis, as becoming essential in areas where good potential thermal performance of the GSHP and serious risks of groundwater contamination exist. In this paper, several fluid mortars with enhanced characteristics have been evaluated. Results show improved mechanical and thermal properties compared to conventional grouting materials. Likewise, mortars exhibited good performance after being subjected to durability treatment. For now, the cost of some mortars may constitute a barrier.
Original languageEnglish
Pages (from-to)481-488
Number of pages8
JournalConstruction and Building Materials
Early online date19 Jul 2018
Publication statusPublished - 10 Oct 2018
Externally publishedYes

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, 185, (2018) DOI: 10.1016/j.conbuildmat.2018.07.076

© 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/


  • Grouting material
  • Fluid mortar
  • Cement
  • Graphite
  • Durability


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