Free of Volatile Organic Compounds Protection against Moisture in Building Materials/Zabezpieczenia Przegród Budowlanych Przed Wilgocią Wolne Od Lotnych Związków Organicznych

• Authors: Zbigniew Suchorab , Danuta Barnat-Hunek , Piotr Smarzewski , Zbyšek Pavlík , Robert Černý
• Languages of publication: EN

Abstracts

EN

The article presents information about moisture protection of building materials. The discussed parameters determining the efficiency of the water protection are material porosity, water absorptivity and surface condition of building materials. Moreover the ecological aspect of hydrophobic VOC-free preparations available on the market has been underlined. The first part of the article is a description of moisture problem in the building envelopes and the possibilities of its prevention. The special attention is put on the electric methods of moisture estimation with a special emphasis on the Time Domain Reflectometry (TDR) method. The second part of the article is devoted an experiment of model red-brick walls exhibited on capillary uptake process. For the experiment three model red-brick walls were built and prepared for water uptake process. The experiment was monitored by the capacitive and surface TDR probes thanks to which the necessity of sampling and material destruction could be avoided. Conducted experiments show the progress of water uptake phenomenon in the model walls which differ in type of protection against moisture and prove the potential of the non-invasive measurements using the surface TDR probes. Basic physical parameters of the applied bricks were determined together with the reflectometric measurements. Furthermore, Scanning Electron Microscopy (SEM) was used to analyze the hydrophobic layer continuity.

PL

W artykule przedstawiono parametry materiałów budowlanych, które wpływają na skuteczność stosowania preparatów hydrofobowych. Należą do nich porowatość, nasiąkliwość i stan powierzchni. Podkreślono również ekologiczne aspekty stosowania dostępnych na rynku budowlanym hydrofobowych preparatów wolnych od lotnych związków organicznych. Pierwsza część pracy jest omówieniem problemów wilgotnościowych w przegrodach budowlanych. Duży nacisk położono na elektryczne techniki detekcji wilgoci ze szczególnym uwzględnieniem metody TDR. Druga część ma charakter eksperymentalny. W celu zbadania zjawiska podciągania kapilarnego przygotowano trzy modelowe ścianki z cegły ceramicznej pełnej. Omawiany proces był monitorowany za pomocą czujników pojemnościowych oraz powierzchniowych sond TDR. Uzyskane wyniki pozwalają na śledzenie procesu podciągania kapilarnego w modelowych ściankach z cegły ceramicznej różniących się od siebie rodzajem zastosowanego preparatu hydrofobowego i potwierdzają możliwości sondy powierzchniowej TDR w pomiarach wilgotnościowych murów. Równolegle do badań za pomocą technik elektrycznych wyznaczono podstawowe parametry fizyczne cegły wykorzystanej do wymurowania ścianek, wykonano również zdjęcia za pomocą skaningowego mikroskopu elektronowego (SEM) w celu przeanalizowania ciągłości warstwy hydrofobowej.

Keywords

EN

capillary rise; red brick; surface TDR probes; hydrophobization; VOC-free preparations; volatile organic compounds; scanning electron microscopy

PL

podciąganie kapilarne; cegła ceramiczna pełna; powierzchniowe sondy TDR; hydrofobizacja; wolne od LZO preparaty; lotne związki organiczne; skaningowy mikroskop elektronowy

• Publisher: De Gruyter Open
• Journal: Ecological Chemistry and Engineering S
• Year: 2014
• Volume: 21
• Issue: 3
• Pages: 401-411

Dates

published

1 - 10 - 2014

online

10 - 10 - 2014

Contributors

author

Zbigniew Suchorab

• Faculty of Environmental Engineering, Lublin University of Technology, ul. Nadbystrzycka 40a, 20-618 Lublin

author

Danuta Barnat-Hunek

• Department of Building Construction, Faculty of Civil Engineering and Architecture, Lublin University of Technology, ul. Nadbystrzycka 40, 20-618 Lublin

author

Piotr Smarzewski

• Department of Civil Engineering, Faculty of Civil Engineering and Architecture, Lublin University of Technology, ul. Nadbystrzycka 40, 20-618 Lublin

author

Zbyšek Pavlík

• Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague 6, Czech Republic

author

Robert Černý

• Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague 6, Czech Republic

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Identifiers

DOI

10.2478/eces-2014-0029