The Protection of Masonry Blocks with Using Hydrophobization Before Load Due to Increased Moisture

Novak Vitezslav, Zach Jiri

Abstract


The Faculty of Civil Engineering (Brno University of Technology) has for several years been developing and researching the properties of modern building materials. One area of research is the development and modification of the properties of masonry elements, particularly masonry blocks that are able to withstand increased moisture loads. These masonry blocks can be used as protection in buildings in flood areas or buildings that may be prone to damage from natural disasters. Increased moisture is one of the most common problems encountered in building structures. Most problems concern moisture in liquid form, which can have significant effects on changing the properties of materials and structures. If the structure of brick blocks is changed by moisture in liquid form due to porosity and water absorption, thereby affecting load, it can reduce the service life of masonry blocks. This paper investigates the use of special silicone products on the surface layer of ceramic masonry elements. The application of these silicone agents forms a protective surface layer on masonry blocks, protecting them via hydrophobisation and the effects of increased humidity. Hydrophobisation reduces water absorption into masonry blocks and eliminates the negative effects of moisture on the properties of masonry blocks. Through hydrophobisation, masonry blocks can be extremely effective for use as preventive protection in case of failure or damage on the part of conventional waterproofing measures.

Keywords


water absorption; hydrophobization; flood; flood area; high humidity; masonry; ceramic masonry elements.

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References


J. F. Straube. Moisture in building, ASHRAE (Journal 44), pp. 15-19, 2002.

Ch. Hall, W.D. Hoff, H.A. Viles, J.A. Eklund. Moisture dynamics in walls: Response to micro-environment and climate change, (Proceedings of The Royal Society A 466), pp. 194-211, 2010.

T. Ritchie. Moisture degradation of masonry walls, Proceedings of the 1st Canadian Masonry Symposium held at the University of Calgary, pp. 66-71, 1976.

T.D. Gonçalves, L. Pel, J.D. Rodrigues. Drying of salt-contaminated masonry: MRI laboratory Monitoring, (Environmental Geology 52), pp. 293-302, 2007.

D. D'Agostino. Moisture dynamics in a historical masonry structure: The Cathedral of Lecce (South Italy), (Building and Environment 63), pp. 122-133, 2013.

C. Gentilini, E. Franzoni, S. Bandini, L. Nobile. Effect of salt crystallization on the shear behavior of masonry walls: An experimental study, (Construction and Building Materials 37), pp. 181-189, 2012.

P. Kotlík. Stavební materiály historických objektů – materiály, koroze, sanace, Vysoká škola chemicko-technologická v Praze, Praha, 1999.

Czech standard ČSN 73 0600 Waterproofing of buildings – Basic provisions, (Czech standards Institute), Prague, 2000.

M. Blaha, L. Bukovský. Prevence a odstraňování vlhkosti, (ERA group spol.s.r.o.), Brno, 2004.

M. Balík. Vysušování zdiva III, (Grada Publishing, spol. s r.o.), Praha, 1999.

M. Balík, a kolektiv. OdvlhÄování zdiva, (Grada Publishing, spol. s r.o.), Praha, 2008.

M. Balík. Vysušování zdiva I, (Grada Publishing, spol. s r.o.), Praha, 2002.

[

Czech standard CSN P 73 0610 Waterproofing of buildings – The rehabilitation of damp masonry and additional protection of buildings against ground moisture and atmospheric water – Basic provision. (Czech Standards Institute), Prague, 2000.

D. Beden, Z.Z. Manko. Influence of selected hydrophobic agents on some properties of autoclaving cellular concrete (ACC), (Construction and Building Materials 25), pp. 282-287, 2011.

M. Medeiros, P. Helene. Efficacy of surface hydrophobic agents in reducing water and chloride ion penetration in concrete, (Mater Struct 41), pp. 59-71, 2008.

L. Wolf, M. Raupach. Hydrophobization of concrete products, (Betonwerk und Fertigteil-Technik, 69),

pp. 12-21, 2003,

Czech standard CSN P 73 0606 Waterproofing of buildings – Continuous sheet waterproofing – Basic provisions, (Czech Standards Institute), Prague, 2000.

M. Balík. OdvlhÄování staveb 2., (Stavitel), 2008.

P. Kotlík. Hydrofobizace stavebních materiálů [online], 2008, [cit. 2015-02-26].

F. Bamoharram, M. Heravi, S. Saneinezhad, A. Ayati. Synthesis of a nano organo-silicon compound for building materials waterproofing, using heteropolyacids as a green and eco-friendly catalyst, (Progress in Organic Coatings 76), pp. 384-387, 2013.

Surface science techniques [online], 2013, [cit. 2015-02-27].

R. Drochytka. “Plastic substancesâ€, (Study support BUT), Brno, 2007.

J. de Vries. R.B. Polder. Hydrophobic Treatment of Concrete, (Internationale Zeitschrift für Bauinstandsetzen 2), pp.145-160, 1996.

P. Kotlík. Stavební materiály historických objektů, Praha, 1999.

Czech standard CSN EN 1297 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing – Method of artificial ageing by long term exposure to the combination of UV radiation, elevated temperature and water. (Czech Standards Institute), Prague, 2004.




DOI: http://dx.doi.org/10.18517/ijaseit.8.6.5855

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