Treatment of rising damp in historic buildings: Experimental campaign of wall base ventilation and interface effect analysis

Guimarães, Ana Sofia; Delgado, J. M. P. Q.; Freitas, Vasco Peixoto de

doi:10.1016/j.culher.2016.02.012

Cited by 12 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In February 2018, this journal published the article "Interface influence on moisture transport in buildings" [1], wherein an enquiry into the impact of material interfaces on moisture absorption in building materials is documented. This article continues previous research of this group on this topic [2][3][4][5][6], which was originally initiated with the seminal paper of de Freitas et al in 1996. In all of these studies, the interface impacts are characterised with maximum moisture flows over the interface, contrary to the much more widely employed characterisation with interface resistances though [7][8][9][10][11][12][13][14]. The investigation in [1] targets three types of material interfaces: 'air space' (two brick samples separated by an air space), 'perfect contact' (two brick samples in direct contact) and 'hydraulic contact' (bonded brick-mortar samples).…”

Section: Introductionsupporting

confidence: 82%

“…Other publications on the theme of material interfaces [7][8][9][10][11][12][13][14] have consistently opted to describe their impact with an interface resistance, the flow through which hence is controlled by the difference in capillary pressure over that interface. The critiqued publication [1], as well as its related articles [2][3][4][5][6], chooses for another approach, by characterising the interface impact via the more direct post-interface flow. This is a peculiar decision, since this strongly restricts the generalisa- Initially, one can best understand this by thinking about the thermal analogon.…”

Section: Shortcomings Of the 'Flow' Approachmentioning

confidence: 99%

“…and 'air layer' configurations only, where often large interface resistances can be expected. The approach was though abstractly expanded to 'hydraulic contact' configurations in [4,5] and really applied for 'hydraulic contact' configurations in [1,6], without verifying however whether the premise of location-independent and time-constant post-interface flows still applies for their typically smaller interface resistances. The flow values in Table 1 actually disclose that the location-independent assumption has been abandoned, as distinct values are reported for interfaces at different heights.…”

Section: Shortcomings Of the 'Flow' Approachmentioning

confidence: 99%

See 2 more Smart Citations

A critique on characterising interface resistances with maximum moisture flows

Janssen

2020

Construction and Building Materials

View full text Add to dashboard Cite

In February 2018, this journal published the article "Interface influence on moisture transport in buildings". This critique firstly establishes that the reported 'hydric resistance' values overestimate the impacts of the material interfaces for the brick-mortar 'hydraulic contact' samples. It is shown that the actual flows after crossing the brick-mortar interface are 2 to 5 times higher than indicated by the article's 'hydric resistance' values. This critique secondly demonstrates that the article's main idea of characterising material interfaces with a maximal post-interface-flow is not dependable nor generalisable. This flow is not necessarily constant in time, and may depend on the interface's actual location, the surrounding materials' properties and the imposed boundary conditions, hence defying all generalisation. The conclusion of this critique is therefore that the processing methods and results of the disputed article are not reliable.

show abstract

Section: Introductionsupporting

confidence: 82%

Section: Shortcomings Of the 'Flow' Approachmentioning

confidence: 99%

Section: Shortcomings Of the 'Flow' Approachmentioning

confidence: 99%

See 1 more Smart Citation

A critique on characterising interface resistances with maximum moisture flows

Janssen

2020

Construction and Building Materials

View full text Add to dashboard Cite

show abstract

“…Since the weather effects are unavoidable and recurrent along the life of the buildings, masonry weathering is perhaps the most frequent damage in heritage buildings (Feilden, 2003, Siegesmund et al, 2002. Other recurrent effect in many historic masonry buildings is the rising moisture effect, which is the increase of dampness in the base of walls, due to water from subsoil moving upwards by capillarity through the masonry (Guimarães et al, 2016, Franzoni et al, 2014Rirsch and Zhang, 2010;Feilden, 2003).…”

Section: Introductionmentioning

confidence: 99%

Rock deterioration in the masonry walls of the Cathedral Basilica of Aguascalientes, Mexico

Padilla-Ceniceros¹,

Pacheco-Martínez²,

López-Doncel³

et al. 2017

Rev. Mex. Cien. Geol.

View full text Add to dashboard Cite

Padilla-Ceniceros, R., Pacheco-Martínez, J., López-Doncel, R.A., Orenday-Tapia, E.E., 2017, Rock deterioration in the masonry walls of the cathedral basilica of Aguascalientes, Mexico: Revista Mexicana de Ciencias Geológicas, v. 34, núm. 2, p. 138-149. ABSTRACTHigh porosity volcanic tuffs were used to elaborate the masonry of the walls of the Cathedral of Aguascalientes City, at central México. At present, masonry stones show evidences of deterioration, mainly in the lower part of the walls outside the building due to a raising moisture effect and environmental pollution which are causing damages such as flaking, scaling and black crusts. Petrological studies including X-Ray diffractometry and petrophysical analysis as porosity, density and bulk-density determinations as well stone damages survey were carried out to get information on the used rock types to elaborate the masonry walls, their petrological characteristics and physical harms. No compresional testings were developed due to scarse of stone samples, but there are reported data for these stones by others authors. The results allow to identify the stone type most prone to deteriorate, the mechanism of stone deterioration, and the factors accelerating deterioration. Although results have a pragmatic use for restoration works of the Cathedral of Aguascalientes City, the methodology applied could be used for determining the stone vulnerability to deteriorate in heritage buildings anywhere abroad.Key words: tuff rock; moisture properties; cultural heritage; Aguascalientes; Mexico. RESUMEN Se utilizaron tobas volcanicas de alta porosidad para construir los muros de mamposteria de la Catedral de la ciudad de

show abstract

“…Soaked masonries often show serious conservation issues. The phenomenon and the resulting decay have been extensively studied [1][2][3][4], as well as possible remediation methods [5,6], both from the theoretical point of view [7][8][9][10][11], and on several real case studies all over the world [2,[12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Rising damp in historical buildings: A Venetian perspective

Falchi

Slanzi

Balliana

et al. 2018

Building and Environment

View full text Add to dashboard Cite

A B S T R A C TConsidering several real case studies, moisture distribution due to rising damp in Venetian brick masonries is discussed and empirical models are developed. Moisture content and soluble salt data of 25 historical buildings in Venice are analysed. Data are scrutinized using statistical methods, obtaining contour plots and estimating the validity of linear and non-linear models. The models confirm that masonries are usually soaked with water till 120-150 cm over sea level, while the evaporation zone ranges in height from 200 cm to 350 cm. In the perpendicular section, moisture distribution depends on several contingent factors such as, among them, the proximity and the exposition of the external façades to the water action.

show abstract

Treatment of rising damp in historic buildings: Experimental campaign of wall base ventilation and interface effect analysis

Cited by 12 publications

References 6 publications

A critique on characterising interface resistances with maximum moisture flows

A critique on characterising interface resistances with maximum moisture flows

Rock deterioration in the masonry walls of the Cathedral Basilica of Aguascalientes, Mexico

Rising damp in historical buildings: A Venetian perspective

Contact Info

Product

Resources

About