Evaluation of the Influence of Wind-Driven Rain on Moisture in Cellular Concrete Wall Boards

Author:

Alsabry A.1,Nikitsin V.I.2,Kofanov V.A.3,Backiel-Brzozowska B.4

Affiliation:

1. University of Zielona Góra , Faculty of Civil Engineering, Architecture and Environmental Engineering , Str. Licealna 9, 65-417 Zielona Góra , Poland

2. Pope John Paul II State School of Higher Education in Biala Podlaska , 95/97 Sidorska Str. Biala Podlaska 21-500 , Poland

3. Brest State Technical University , 267 Moskovskaya Str. Brest 224017 , Belarus

4. Białystok University of Technology , 45E Wiejska Str. Bialystok 15-351, Poland

Abstract

Abstract The non-stationary moisture level of a cellular concrete wall board in a heated utility building located in the northern part of the town of Brest (Belarus), depending on the climatic influence, was assessed in this work. The results were obtained both in a calculation experiment and a physical test. It was observed that the main reason for the high moisture levels in cellular concrete is wind-driven rain intensifying the process of free capillary moisture transfer. A comparative analysis of the results of the physical test and the calculation experiment showed that the THSS software elaborated by the authors was able to predict the actual moisture levels of the shielding structure under study accurately enough when precise data concerning the thermal and physical characteristics of the materials as well as the occurring climatic influences were submitted.

Publisher

Walter de Gruyter GmbH

Subject

Fluid Flow and Transfer Processes,Transportation,Civil and Structural Engineering

Reference23 articles.

1. [1] Adl-Zarrabi B. and Högberg A.B. (2002): Microclimate: Field Measurements, Driving Rain Analyses, Building Durability – Practices. – Mat. Konf. “Performance of Exterior Envelopes of Whole Buildings VIII: Integration of Building Envelopes”, (CD), Clearwater Beach, Florida.

2. [2] Blocken B. and Carmeliet J. (2002): Spatial and Temporal Distribution of Driving Rain on Buildings: Numerical Simulation and Experimental Verivication. – Mat. Konf. “Performance of Exterior Envelopes of Whole Buildings VIII: Integration of Building Envelopes” (CD), Clearwater Beach, Florida.

3. [3] Fabien J.R. van MOOK (2002): Driving rain on building envelopes. – Eindhoven: Eindhoven University Press.

4. [4] Alsabry A. (2011): Moisture transport in the building envelope from capillary-porous materials. – Zielona Góra: Publishing House of the University of Zielona Góra, (in Polish).

5. [5] Blocken B.J. and Carmeliet J.E. (2004): A review of wind-driven rain research in building science. – Journal of Wind Engineering and Industrial Aerodynamics. N92(13), pp.1079-1130.

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