Investigation of the Effectiveness of Siloxane Hydrophobic Injection for Renovation of Damp Brick Masonry

Experimental investigation of the effect of hydrophobic injection on siloxane basis on the properties of oldfashioned type of ceramic brick is presented in the paper. At the experimental testing, the matrix density, total open porosity, pore size distribution, sorptivity, water absorption coefficient, sorption and desorption isotherms are measured for the original, as well as the hydrophobic-injection treated brick. On the basis of measured data, the functionality of the hydrophobic injection for the moisture ingress prevention into the studied ceramic brick is assessed.




References:
[1] G. Bornehag, F. Blomquist, F. Gyntelberg, B. Jaervholm, P. Malmberg,
L. Nordwall, A. Nielsen, G. Pershagen, J. Sundell, "Dampness in
building and health, Nordic interdisciplinary review of the scientific
evidence on associations between exposure to "dampness" in buildings
and health effects (NORDDAMP)," Indoor Air, vol. 11, pp. 72-86,
2001.
[2] H. Viitanen, J. Vinha, K. Salminen, T. Ojanen, R. Peuhkuri, R., L.
Paajanen, K. Lahdesmaki, "Moisture and bio-deterioration risk of
building materials and structures," J. Build. Phys., vol. 33, no. 3, pp.
201-224, 2010.
[3] M. Jiři─ìkov├í, Z. Pavl├¡k, L. Fiala, R. ─îern├¢, "Thermal properties of
mineral wool materials partially saturated by water," Int. J.
Thermophys, vol. 27, pp. 1214-1227, 2006.
[4] Z. Pavlík, E. Vejmelková, L. Fiala, R. ČernÛ, "Effect of moisture on
thermal conductivity of lime-based composites," Int. J. Thermophys.,
vol. 30, pp. 1999-2014, 2009.
[5] L. Fiala, L., M. Pavlíková, Z. Pavlík, M. Keppert, R. Pernicová, R.
ČernÛ, "Chloride accumulation and transport in renovation plasters," in
Proc. 1st Central European Symposium on Building Physics, Lodz:
Technical University of Lodz, 2010, pp. 127-133.
[6] M. Pavlíková, Z. Pavlík, M. Keppert, R. ČernÛ, "Salt transport and
storage parameters of renovation plasters and their possible effects on
restored buildings' walls," Const. Build. Mat., vol. 25, no. 3, pp. 1205-
1212, 2011.
[7] V. Nagy, L. M. Vas, "Pore characteristics determination with mercury
porosimetry in polyester stample yarns," Fibres and Textiles in Eastern
Europe, vol. 13, no. 21-26, pp. 2005.
[8] E. W. Washburn, "The Dynamics of Capillary Flow", Phys. Rev., vol.
17, no. 3, 1921.
[9] C. Hall, "Water sorptivity of mortars and concretes: a review," Mag.
Conc. Res., vol. 41, pp. 51-61, 1989.