Influence of Mortar Joints on the Moisture Transfer in Layered Materials

A.S. Guimarães; João M.P.Q. Delgado; V.P. de Freitas

doi:10.4028/www.scientific.net/DDF.365.160

Paper Titles

Correlation between Thermal Parameters, Primary Dendrite Arm Spacing and Microhardness on a Directionally Solidified Ternary Al-6wt%Cu-8wt%Si Alloy
p.136

Mechanical Behavior of Iron Boride Formed in the Surface of an AISI W2
p.142

Mechanical Behavior on Cr Base Steels Surface Treatment
p.148

Implementation and Monitoring of Higroregulated Wall Base Ventilation Systems to Control Rising Damp
p.154

Influence of Mortar Joints on the Moisture Transfer in Layered Materials
p.160

Hygrothermal Material Properties Database
p.166

Wood Dimensional Changes due to Hygrothermal Behaviour
p.172

The Influence of Mn, Zr and Pb Promoters on the Performance of Cu/ZnO/SBA-15 Catalyst for Hydrogenation of CO₂ to Methanol
p.178

Improved Surface Quality by the Process of Vibratory Grinding
p.183

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 365Influence of Mortar Joints on the Moisture...

Influence of Mortar Joints on the Moisture Transfer in Layered Materials

Abstract:

One of the main causes of older and heritage buildings degradation is moisture, in particular the rising damp from the ground. The construction materials which are in contact with water or moist soil are subject to capillarity, which is defined as the phenomenon of a liquid rising through the capillaries of a solid, leading to the emergence of several pathologies.The height of progression of the moist front depends on the climatic conditions of the ambiences, the isolation, the wall thickness, the porosity and porometry of the materials, the presence of salts and the nature of the coating materials.The objective was the study of the interface between layers through the introduction, in the automatic calculation program WUFI-2D, of fictitious layers between the layers of brick and mortar. The fictitious layers correspond to the part of the brick that above and below the joint receives the mortar, and for this reason they are small layers whose thickness and properties are unknown and are intended to be characterized. Through simulations on the WUFI-2D program and using lab results will be possible to reach a function that relates the thickness and the properties of the fictitious layers.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volume 365)

Pages:

160-165

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.365.160

Citation:

Cite this paper

Online since:

July 2015

Authors:

A.S. Guimarães*, João M.P.Q. Delgado, V.P. de Freitas

Keywords:

Building Materials, Experimental Tests, Interface Phenomena, Moisture Migration, Numerical Simulation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] H.J.P. Brocken: Moisture transfer in brick masonry: the grey area between bricks (Phd Thesis, The Netherlands, T.U. Eindhoven, 1998).

Google Scholar

[2] H. Derluyn, H. Janssen and J. Carmeliet: Constr Build Mater Vol. 25 (2011), p.3685.

Google Scholar

[3] X. Qiu, F. Haghighat and K. Kumaran: J Therm Envelope Build Sci Vol. 26 (2003), p.213.

Google Scholar

[4] M. Bomberg: Moisture flow through porous building materials (Report no. 52, Division of Building Technology, Lund Institute of Technology, Sweden, 1974).

DOI: 10.2136/sssaj1975.03615995003900020004x

Google Scholar

[5] H. Janssen, H. Derluyn and J. Carmeliet: Cem Concr Res Vol. 42 (2012), p.1105.

Google Scholar

[6] A.S. Guimarães, J.M.P.Q. Delgado, V.P. Freitas: J Build Phys Vol. 37 (2013), p.6.

Google Scholar