Predicting the initial rate of water absorption in clay bricks

Raimondo, M.; Dondi, Michele; Gardini, Davide; Guarini, Guia; Mazzanti, Francesca

doi:10.1016/j.conbuildmat.2009.01.009

Cited by 98 publications

(67 citation statements)

References 16 publications

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“…Some of our experimental observations are supported by reports in the literature (e.g., water absorption and water transport by the bricks [16][17][18] ), but others are not explainable on the basis of present knowledge (e.g., by capillary flow within the bricks 5,19,20 ). This is probably because some reports regard organised systems, while others regard single elements.…”

Section: Our Results Show Thatsupporting

confidence: 81%

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Signanini¹,

Santis²,

Fazio³

et al. 2014

WATER

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Significant and persistent decreases in temperature have been observed in very porous materials when they are partially immersed in water at room temperature. As the sample sizes were much smaller than the maximum height of the typical capillary rise, this represents a far-from-equilibrium system. We attribute this thermal decrease to two concurrent actions: (i) the highly porous property of the material used; and (ii) a transition-phase-like process of the water. Thus, the water not only cools down the material surface through evaporation at the sample-air interface, but it also expands within the material, causing a further internal decrease in temperature that cannot be explained solely through evaporation. This latter process is persistent enough to maintain the decrease in temperature over time. This unexpected characteristic of water and its persistence when diffusing inside an extremely porous medium are the most original results of this study. Our results seem in agreement with the recent model on the fourth phase of water

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Section: Our Results Show Thatsupporting

confidence: 81%

Untitled

Signanini¹,

Santis²,

Fazio³

et al. 2014

WATER

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“…Como se observa, las dos series de bloques mostraron una variabilidad en relación a las propiedades físicas y microestructurales (16). En el caso de los bloques de la serie D 1 , presentan coeficientes de variación en el rango del 44%, contrariamente a lo observado en los grupos de la serie D 2 , donde hay una homogeneidad en los resultados.…”

Section: Resultados Y Discusionesunclassified

Análisis de propiedades del transporte de humedad en bloques de hormigón

Mustelier¹,

Rocha²,

Cheriaf³

2013

Inf. constr.

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“…The concentrated moisture in the lower part of the construction causes decay and deterioration in the building material of archeological heritage [7]. Water has strong affinity with the capillaries in the material structure which leads to the rising damp process through capillarity [8]. Capillary forces are primary physical processes which are responsible for the rise of liquid in the pores of materials.…”

Section: A Brief Description Of the Construction Period And Architectmentioning

confidence: 99%