4.7 Article

Investigating the manufacturing technology and durability of lime mortars from Amaiur Castle (Navarre, Spain): A chemical-mineralogical and physical study

期刊

CONSTRUCTION AND BUILDING MATERIALS
卷 299, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.123975

关键词

Lime mortar; Deterioration; Hot-mixing method; Hydric behaviour; Hydromagnesite; Hydrotalcite

资金

  1. Research Group of the Basque Government [IT1193-19]
  2. Junta de Andalucia Research Group [RNM179, MAT2016-75889-R]
  3. Basque Government [2015-1-02-35]

向作者/读者索取更多资源

The mineralogical, chemical, and physical characterization of archaeological lime mortars at Amaiur Castle in Spain revealed that the mortars' durability is largely influenced by their textural features, with high porosity and water absorption contributing to susceptibility to deterioration. The identification of hydrotalcite and hydromagnesite in the mortar binder supports the traditional hot-mixing method used in manufacturing the mortars at the castle. This study provides valuable insights for formulating compatible repair mortars to ensure suitable conservation of the castle and similar ancient structures.
Mineralogical, chemical and physical characterization of archaeological lime mortars from different structures at Amaiur Castle (Navarre, Spain) was accomplished in order to comprehend their durability. Mortars from the south-west of the 16th century filling and bastion, and the south-east mortars of the 17th century bastion are the most susceptible to deterioration due to their textural features. The high porosity and water absorption capacity, the poor interconnection of pores and slow drying are the main factors contributing to deterioration of mortar at Amaiur Castle. The mineralogical study enabled an approach to the technological knowledge used in the lime mortar manufacturing process at Amaiur Castle. Hydrotalcite and hydromagnesite identified in the mortar binder support the use of the traditional hot-mixing method during mortar manufacturing. This work provides valuable references for the formulation of compatible repair mortars to ensure suitable conservation of the castle as well as of other ancient structures built with similar materials. (C) 2021 Elsevier Ltd. All rights reserved.

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