Parametric analysis of moisture sorption isotherms for wood sheathing using hygrothermal modelling

Zhang, Kevin; Richman, Russell

doi:10.1016/j.jobe.2019.101047

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…Sorption isotherm and moisture retention curve are objective physical quantities conforming to the theoretical principles of continuum physics, which can be further used directly in the moisture balance equation [ 31 ]. Therefore, such data usually serve as input parameters for computational models of moisture transport [ 57 ].…”

Section: Resultsmentioning

confidence: 99%

“…Highly porous materials were considered as potentially suitable admixtures to plasters and mortars by various researchers in order to access passive solutions for the abovementioned issue [27,28]. In particular, the lightweight Polymers 2021, 13, 2279 2 of 17 aggregates, such as perlite, charcoal, and vermiculite, became popular for the attempts to provide the required material performance [6,[29][30][31]. Notwithstanding, the effectiveness of these admixtures did not provide satisfactory results and only minor improvements were achieved.…”

Section: Introductionmentioning

confidence: 99%

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Functional Properties of SAP-Based Humidity Control Plasters

et al. 2021

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The application of materials with high moisture storage capacity close to the interior surface presents a prospective passive method for improving indoor relative humidity conditions. In this paper, lime-cement plasters containing three different types of superabsorbent polymers (SAPs) in varying dosages are introduced and their mechanical, hygric, and thermal characteristics are analyzed in a relation to microstructure. The experimental results show a significant effect of both SAP amount and chemical composition on all functional properties of studied plasters. The incorporation of 1.5% of SAP may induce up to 2.5 better moisture buffering, thus significantly improving the passive humidity control capability. Considering overall functional parameters of SAP-modified plasters, the dosage of 1 wt.% can thus be viewed as a rational compromise between the moisture storage capability and mechanical properties. The obtained wide sets of parameters can be utilized directly as input data of computational models suitable for the assessment of the interior microclimate of residential and administrative buildings.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Functional Properties of SAP-Based Humidity Control Plasters

et al. 2021

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Wood sheathing durability from moisture sorption isotherm variability due to age and temperature

Zhang

Richman

2021

Construction and Building Materials

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Variability in moisture sorption isotherms of plywood and oriented strand board with accelerated ageing

Zhang

Richman

2021

Can. J. Civ. Eng.

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Simulation of heat and mass transfer in buildings can be a powerful tool in analyzing overall durability but is dependent on accurate input data. This study is a part of a larger study on the effects of moisture storage in a commercially available hygrothermal modelling software. Moisture storage has not been well measured historically due to time requirements and necessity, and the effects of moisture storage on modelling have not been studied extensively. This study measures sorption isotherms in plywood and oriented strand board sheathing that has undergone accelerated ageing. Results have shown that ageing samples may not have a significant effect on sorption isotherms, however, this may be due to the accelerated ageing method. Common methods used in accelerated ageing of wood products were primarily designed for testing mechanical properties and were too destructive for measuring hygrothermal properties. Further refinement of the accelerated ageing methodology may yield improved data.

show abstract

Parametric analysis of moisture sorption isotherms for wood sheathing using hygrothermal modelling

Cited by 3 publications

References 27 publications

Functional Properties of SAP-Based Humidity Control Plasters

Functional Properties of SAP-Based Humidity Control Plasters

Wood sheathing durability from moisture sorption isotherm variability due to age and temperature

Variability in moisture sorption isotherms of plywood and oriented strand board with accelerated ageing

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