A chemical, morphological and mineralogical study on the interaction between hemp hurds and aerial and natural hydraulic lime particles: implications for mortar manufacturing
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2015Referencia bibliográfica
Arizzi A., Cultrone G., Brümmer M., Viles H. A chemical, morphological and mineralogical study on the interaction between hemp hurds and aerial and natural hydraulic lime particles: implications for mortar manufacturing. Construction and Building Materials, 75, 375-384 (2015). D.O.I.: 10.1016/j.conbuildmat.2014.11.026
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School of Geography and the Environment. University of Oxford. Departamento de Mineralogía y Petrología, Universidad de GranadaAbstract
Mixing hemp with aerial or natural hydraulic lime gives rise to mortars with improved flexibility
and insulation but with peculiar microstructure compared to lime-aggregate mortars. The chemical–
mineralogical and morphological investigation carried out here shows that hemp absorbs most of the
water present in the matrix, causing superficial deposition and scarce adhesion of the lime to the hemp.
This also delays the hardening process, as demonstrated by the high content of portlandite, vaterite and
calcium silicates found after three months of curing. Some modifications to the production and curing
procedures are suggested to improve the microstructure and final performance of hemp-lime mortars.