Influence of chemical damp proof cream on the capillary action and microstructure of mortars

Wójcik, Robert; Panuś, Arkadiusz; Tunkiewicz, Maria; Hamdy, Mohamed

doi:10.1016/j.egypro.2017.10.004

Cited by 8 publications

(5 citation statements)

References 3 publications

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“…By applying the remedial measures mentioned above, capillary moisture levels were reduced to 3 % or less under ideal implementation conditions. This finding is also supported by another research investigating injection remediation interventions on other structures [11]. These remediation technologies such as undercutting are discussed in an article by the German Professor Schmidt [12], who devotes a chapter to this technology and describes it on the one hand as radical and costly, on the other hand as very fast and effective.…”

Section: Collection Of Data From Research On Applied Barrier Repair T...mentioning

confidence: 66%

The importance of using active thermal protection following restoration work on old buildings

Šťastný,

Antošová,

Kalús

et al. 2024

Acta Polytech

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The paper deals with the issue of humidity and the unhealthy environment of old buildings. Humidity is a very widespread problem not only in historical buildings, but also in newer buildings. This problem can be observed in various parts of the world and thus it can be said that it is a global problem. Humidity in these buildings causes an unhealthy environment, which has a negative effect on individual building constructions, but also on people’s health. Humidity is also associated with the form of disruption of the individual layers of the construction and the disruption of the thermal resistance of these constructions. Buildings such as these subsequently have an unhealthy environment. After a part of the description of the known issue, the contribution follows on from this part by indicating possible remedial interventions and analyses the systems of additional thermal insulation (ETICS, ATP), ensuring the improvement of the internal environment. Finally, the article presents possible connections and extensions of this research and its application directly in practice. The results of the proposed research will significantly contribute to the approach to rehabilitated older buildings and their long-term sustainability from an economic point of view, as well as the possible use of them.

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Section: Collection Of Data From Research On Applied Barrier Repair T...mentioning

confidence: 66%

The importance of using active thermal protection following restoration work on old buildings

Šťastný,

Antošová,

Kalús

et al. 2024

Acta Polytech

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“…As the spreading ability of the injected fluids is the key for the success of any damp-proof course [15,20], several methods in the literature aim at assessing this property in different kinds of materials, either single or coupled. Samples of limited size are used in this case, to allow an easier characterization after injection.…”

Section: Evaluation Of the Spreading Ability Of The Resinmentioning

confidence: 99%

“…In fact, it was pointed out that "a realistic performance test for dampproofing treatments must utilise a wall with a substantial moisture gradient and moisture contents should not be unrealistically high at the treatment level" [38]. Hence, injecting the resins in completely saturated building materials may be too harsh, especially considering that the success of chemical damp-proofing is known to depend on the saturation degree of the existing materials [14,18,20]. Aware of this issue, most of the protocols suggest to precondition the specimens to specified saturation degrees, by letting them absorb an amount of water corresponding to the expected moisture percent and then keeping them wrapped until water distributes uniformly in the specimens (e.g., [18,35].…”

Section: Water Saturation Degree At the Injection Timementioning

confidence: 99%

Which methods are suitable to assess the effectiveness of chemical injection treatments in the laboratory?

Franzoni

Rirsch

Paselli

2020

Journal of Building Engineering

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“…• It is evident that the decrease of the spread of an injection agent is inversely proportional to the increase of moisture penetration; • Though the injection agents are quite similar, the results may differ [6].…”

Section: Graphical Presentation Of the Spread Of The Injection Agentmentioning

confidence: 99%

“…The transport of an injection agent -and also of water -is represented by the capillary pores of the building material (order of magnitude 10 -3 to 10 -7 m). This means, the distribution and the frequency of the existing capillary pores in building materials are decisive for the transport of the injection agent and how extensively the existing pore spaces are already filled with water [6].…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on the moisture-dependent spread of injection agents

Walter

2019

Pollack Periodica

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Additional horizontal sealing in mineral building materials often produce insufficient or varying results despite the application of the injection agent being carried out according to the manufacturers' specifications. There is no current scientific explanation for this effect, which prompted this research. The main idea was to solve the question of whether the increasing filling of the capillary pores of mineral building materials with water (and therefore the degree of moisture penetration) can be connected to the varying spread of the injection agent. After developing a test procedure, different degrees of moisture penetration were applied to samples of bricks and mortar cubes and hydrophobic injection agents were applied to the test specimens. The results showed that the degree of spreading of the injection agent was inversely proportional to the degree of moisture penetration. Consequently there is a dependence of the above mentioned parameters (the existing degree of moisture penetration and the spreading of the injection agent) and a model was developed of the spread of injection agents dependent on the existing degree of moisture penetration in building materials.

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Influence of chemical damp proof cream on the capillary action and microstructure of mortars

Cited by 8 publications

References 3 publications

The importance of using active thermal protection following restoration work on old buildings

The importance of using active thermal protection following restoration work on old buildings

Which methods are suitable to assess the effectiveness of chemical injection treatments in the laboratory?

Experimental studies on the moisture-dependent spread of injection agents

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