Abstract
In regards to internal insulation of preservation worthy brick façades, external moisture
sources, such as wind-driven rain exposure, inevitably has an impact on moisture conditions
within the masonry construction. Surface treatments, such as hydrophobation or render, may
remedy the impacts of external moisture. In the present paper the surface absorption of liquid
water on masonry façades of untreated, hydrophobated and rendered brick, are determined
experimentally and compared. The experimental work focuses on methods that can be applied
on-site, Karsten tube measurements. These measurements are supplemented with results from
laboratory measurements of water absorption coefficient by partial immersion. Based on
obtained measurement results, simulations are made with external liquid water loads for
determination of moisture conditions within the masonry of different surface treatments.
Experimental results showed a very clear reduction of the liquid water uptake for
hydrophobated cases. However, hygrothermal simulations demonstrated clear differences in
the effect of the surface treatments on the moisture content of brick depending on the brick
type.
sources, such as wind-driven rain exposure, inevitably has an impact on moisture conditions
within the masonry construction. Surface treatments, such as hydrophobation or render, may
remedy the impacts of external moisture. In the present paper the surface absorption of liquid
water on masonry façades of untreated, hydrophobated and rendered brick, are determined
experimentally and compared. The experimental work focuses on methods that can be applied
on-site, Karsten tube measurements. These measurements are supplemented with results from
laboratory measurements of water absorption coefficient by partial immersion. Based on
obtained measurement results, simulations are made with external liquid water loads for
determination of moisture conditions within the masonry of different surface treatments.
Experimental results showed a very clear reduction of the liquid water uptake for
hydrophobated cases. However, hygrothermal simulations demonstrated clear differences in
the effect of the surface treatments on the moisture content of brick depending on the brick
type.
| Originalsprog | Engelsk |
|---|---|
| Titel | Proceedings pro112: International RILEM Conference Materials Systems and Structures in Civil Engineering 2016 (MSSCE 2016) : segment on Moisture in Materials and Structures |
| Redaktører | Kurt Kielsgaard Hansen, Carsten Rode, Lars-Olof Nilsson |
| Antal sider | 10 |
| Udgivelsessted | Paris |
| Forlag | Rilem publications |
| Publikationsdato | 2016 |
| Sider | 351-360 |
| ISBN (Trykt) | 978-2-35158-178-0 |
| ISBN (Elektronisk) | 978-2-35158-179-7 |
| Status | Udgivet - 2016 |
| Begivenhed | Materials, Systems and Structures in Civil Engineering 2016: Moisture in Materials and Structures - DTU, Lyngby, Danmark Varighed: 22 aug. 2016 → 24 aug. 2016 |
Konference
| Konference | Materials, Systems and Structures in Civil Engineering 2016 |
|---|---|
| Lokation | DTU |
| Land/Område | Danmark |
| By | Lyngby |
| Periode | 22/08/2016 → 24/08/2016 |