Mechanical Behavior of Natural Hydraulic Lime Mortars

Lucia Garijo, Xiaoxin Zhang, Gonzalo Ruiz, Jose Joaquin Ortega and Rena C. Yu

A chapter in Sustainable Construction and Building Materials from IntechOpen

Abstract: Natural hydraulic lime (NHL) mortars are widely used for restoration works due to their good compatibility with the substrate material in terms of physical, chemical, and mechanical properties. Regarding their mechanical characterization, there is still a need for further understanding of their fracture behavior and the influence of their dosage methodology on the mechanical properties. Thus, this chapter focuses on the mechanical characterization of NHL mortars, such as flexural, compressive, and splitting tensile strengths, elastic modulus, and fracture energy. Moreover, the influence of the composition and production process on such properties was studied as well. Furthermore, the loading rate effect on the fracture behavior was also presented. The results show that NHL mortars have shape and size effect on the compressive strength. In addition, NHL mortar is rate sensitive, mainly due to the viscous effects caused by the presence of free water in the porous structure.

Keywords: mechanical characterization; dosage; empirical equations; size effect; loading rate effect (search for similar items in EconPapers)
JEL-codes: L70 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:ito:pchaps:164352

DOI: 10.5772/intechopen.80852

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