On the capillary water absorption of cement-lime mortars containing phase change materials: Experiments and simulations

Guardia, Cynthia; Schicchi, Diego Said; Caggiano, António; Barluenga, Gonzalo; Koenders, Eduardus

doi:10.1007/s12273-019-0556-y

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…The WAC test has been selected for the parameter estimation exercises, as other authors have done for cement-lime mortars containing phase change materials [21]. In this well-known test, there are processes of the coupled transport of water in both the liquid phase and vapor in a partially saturated porous medium.…”

Section: Experimental Testmentioning

confidence: 99%

A User-Friendly Tool to Characterize the Moisture Transfer in Porous Building Materials: FLoW1D

et al. 2020

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This paper presents a user-friendly tool—FLoW1D (One-Dimensional Water Flow)—for the estimation of parameters that characterize the unsaturated moisture transfer in porous building materials. FLoW1D has been developed in Visual Basic for Applications and implemented as a function of the well-known Microsoft Excel© spreadsheet application. The aim of our work is to provide a simple and useful tool to improve the analysis and interpretation of conventional tests for the characterization of the hygric behavior of porous building materials. FLoW1D embraces the conceptual model described in EN 15026 for moisture transfer in building elements, and its implementation has been verified and validated correctly. In order to show the scope of the code, an example of an application has been presented. The hygric characterization of the limestone that is mostly employed in the Cathedral of Santa Maria and San Julian in Cuenca (Spain) was conducted based on an analysis of the conventional water absorption by capillarity tests (EN 15801).

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Section: Experimental Testmentioning

confidence: 99%

A User-Friendly Tool to Characterize the Moisture Transfer in Porous Building Materials: FLoW1D

et al. 2020

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“…The immersion depth was 5 mm. The measures were estimated by weighting the 50 × 100 cylindrical specimens before the immersion (0 h) and after immersion at 0.5 h, 1 h, 3 h, 7 h, 24 h and 48 h. No lateral sealant was used in these tests (as done in some other works in this matter, see [37,38]). All tests have been performed under controlled (constant) temperature and humidity laboratory conditions.…”

Section: Capillarity Water Absorption Testsmentioning

confidence: 99%

Thermal Action on Normal and High Strength Cement Mortars

et al. 2020

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High temperature effect on cement-based composites, such as concrete or mortars, represents one of the most important damaging process that may drastically affect the mechanical and durability characteristics of structures. In this paper, the results of an experimental campaign on cement mortars submitted to high temperatures are reported and discussed. Particularly, two mixtures (i.e., Normal (MNS) and High Strength Mortar (MHS)) having different water-to-binder ratios were designed and evaluated in order to investigate the incidence of both the mortar composition and the effects of thermal treatments on their physical and mechanical properties. Mortar specimens were thermally treated in an electrical furnace, being submitted to the action of temperatures ranging from 100 to 600 °C. After that and for each mortar quality and considered temperature, including the room temperature case of 20 °C, water absorption was measured by following a capillary water absorption test. Furthermore, uniaxial compression, splitting tensile and three-points bending tests were performed under residual conditions. A comparative analysis of the progressive damage caused by temperature on physical and mechanical properties of the considered mortars types is presented. On one hand, increasing temperatures produced increasing water absorption coefficients, evidencing the effect of thermal damages which may cause an increase in the mortars accessible porosity. However, under these circumstances, the internal porosity structure of lower w/b ratio mixtures results much more thermally-damaged than those of MNS. On the other hand, strengths suffered a progressive degradation due to temperature rises. While at low to medium temperatures, strength loss resulted similar for both mortar types, at higher temperature, MNS presented a relatively greater strength loss than that of MHS. The action of temperature also caused in all cases a decrease of Young’s Modulus and an increase in the strain corresponding to peak load. However, MHS showed a much more brittle behavior in comparison with that of MNS, for all temperature cases. Finally, the obtained results demonstrated that mortar quality cannot be neglected when the action of temperature is considered, being the final material performance dependent on the physical properties which, in turn, mainly depend on the mixture proportioning.

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Engineering and Manufacturing of Cementitious Mortars with Low Capillary Suction for the Applications in Historical Buildings

Szemiot

Sadowski²,

Czarnecki³

2022

1st International Conference on Engineering Manufacture 2022

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On the capillary water absorption of cement-lime mortars containing phase change materials: Experiments and simulations

Cited by 10 publications

References 31 publications

A User-Friendly Tool to Characterize the Moisture Transfer in Porous Building Materials: FLoW1D

A User-Friendly Tool to Characterize the Moisture Transfer in Porous Building Materials: FLoW1D

Thermal Action on Normal and High Strength Cement Mortars

Engineering and Manufacturing of Cementitious Mortars with Low Capillary Suction for the Applications in Historical Buildings

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