Assessment Of Surface Roughness For
The Analysis Of The Water Vapour
Condensation Process
Author(s)
A. J. Klemm, P. Klemm & I. Ibrahim
Abstract
This paper presents part of a larger study on water vapour condensation
processes on solid surfaces. The strong relationship between the rapid growth of
water vapour condensate and the roughness of the surface was the inspiration to
undertake this study. A clear need was perceived to address the problem of
assessment of the surface properties, selection of parameters for the analysis and
the most appropriate experimental methods. An attempt was made here to review
the existing methods of analysis of the geometrical microstructure of surfaces.
The paper presents experimental results obtained for glass surfaces.
Keywords: cementitious materials, measurements of surface roughness,
condensation process.
1 Introduction
Moisture performance within buildings and their components is a research area
of growing international importance due to the devastating effects which
moisture can inflict on building envelopes. Interstitial condensation, high
moisture contents and the consequent accumulation of water within a structure
can cause a dramatic deterioration in the performance and integrity of building
materials [1]. The external surfaces of engineering structures often have lower
temperatures than the surrounding environment and in the case of occurrence of
high relative humidity of air they are often subjected to water vapour
condensation and consequently wetting. Both processes – water vapour
condensation and water sorption – are very complex and depend on a number of
Keywords
cementitious materials, measurements of surface roughness,
condensation process.
Related Book
Other papers in this volume
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