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The study presented here investigates the use of alkali-activation and waste materials in stabilised compressed earth construction products. Experimental results for mechanical and thermal properties are presented. Environmental impacts are also compared in a Life Cycle Assessment together with a wider discussion of construction practicalities. Construction and demolition waste shows potential as an aggregate, with processed ground blast furnace slag, together with fly ash, particularly promising for alkali-activated stabilisation. Thermal conductivities of materials using the processed ground blast furnace slag were noticeably lower. Alkali-activated compressed earth blocks appear most promising for reducing the global warming potential of stabilised earth construction.

Original languageEnglish
Article number118096
JournalConstruction and Building Materials
Early online date4 Mar 2020
Publication statusPublished - 20 May 2020


  • Alkali-activation
  • Compressed earth blocks
  • Compressive strength
  • Life Cycle Analysis
  • Masonry
  • Rammed earth
  • Stabilised earth construction
  • Thermal properties
  • Waste materials

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)


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