Using Handheld Moisture Meters on Limestone: Factors Affecting Performance and Guidelines for Best Practice

Eklund, Julie A.; Hong, Zhou; Viles, Heather; Curteis, Tobit

doi:10.1080/15583058.2011.626491

Cited by 37 publications

(20 citation statements)

References 2 publications

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“…Most earlier field results were derived from weighing and drying samples (Hall, , ). Matsukura and Takahashi () measured moisture of sandstone blocks using an infrared moisture meter, while Eklund et al () tested and demonstrated the potential use of handheld capacitance and resitance‐based moisture meters. For one or two decades geophysical techniques, such as 2D‐geoelectrical measurements have been applied to natural rock (Sass, , ; adapted by Mol and Viles, ) and the approach has been adapted to building stone using non‐invasive adhesive electrodes (Sass and Viles, , ) for monitoring moisture ingress into the stonework.…”

Section: Theories and Causes Of Tafoni Weatheringmentioning

confidence: 99%

A multi‐method investigation of temperature, moisture and salt dynamics in tafoni (Tafraoute, Morocco)

Schnepfleitner

Sass

Fruhmann

et al. 2015

Earth Surf Processes Landf

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Despite numerous investigations and theoretical models, tafoni weathering is still not fully understood largely because of limited data available on temperature, moisture and salt regimes. We investigated tafoni developed in granite in the Tafraoute region, Morocco, through an exploratory, two-week multi-method field campaign. Temperatures were measured with iButtons and by means of infrared thermography; moisture distribution and progress were captured with handheld moisture sensors and with drilled-in iButtons. Salts were analysed in drill dust samples from different positions and rock depths.The results derived from very different techniques mutually support one another. Salts and moisture are concentrated near the base of the investigated tafoni, probably due to a saturated pore water body around the base of rock tors. Salts are accumulated close to the rock surface in tafoni, but not on the surrounding rock surfaces. A clear correlation was found between moisture and salt contents. Within a tafone, areas of higher humidity also display increased salt concentration near the surface. The temperature/humidity records allied with ionic analyses suggest that sodium sulfate dominates and is likely to undergo frequent phase changes from thenardite to mirabilite and vice versa. Two pathways of salt transport in and around tafoni are assumed based on the data: infiltration with rainfall on the top and around tors and boulders, and capillary rise from saturated pore water bodies to the surface.

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Section: Theories and Causes Of Tafoni Weatheringmentioning

confidence: 99%

A multi‐method investigation of temperature, moisture and salt dynamics in tafoni (Tafraoute, Morocco)

Schnepfleitner

Sass

Fruhmann

et al. 2015

Earth Surf Processes Landf

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“…The sensor is a non-destructive, handheld and relatively cheap approach to assess the moisture content of stone materials (Mol and Viles 2010;Eklund et al 2013). As it is mainly used by engineers and practitioners for a quick assessment of wetting patterns, there is no readily available calibration function from instrument reading to absolute moisture content.…”

Section: Handheld Moisture Metermentioning

confidence: 99%

Engineering Geology for Society and Territory - Volume 8

Dulcet¹,

Margottini²,

Crosta³

et al. 2015

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“…Experimental test methods for moisture diffusion coefficients are being actively developed at present [13][14][15][16][17], new laboratory equipment is developed and implemented in MATEC Web of Conferences 193, 03053 (2018) https://doi.org/10.1051/matecconf/201819303053 ESCI 2018 researches [18][19][20], on-site measurements of enclosing structures moisture state are carried out [21,22].…”

Section: Moisture Regime and Its Role In Constructionmentioning

confidence: 99%

“…To reduce moisture transfer differential equation to form of equation with constant coefficients, differential coefficients in (22) are replaced by finite differences:…”

Section: Rearrangement Of Moisture Transfer Equationmentioning

confidence: 99%

Assessment of enclosing structure moisture regime using moisture potential theory

2018

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Abstract. The paper describes principal development directions of mathematical models of enclosing structure moisture regime. Benefits of mathematical models based on moisture potential theory are demonstrated. Moisture regime calculation by means of moisture potential, taking liquid and vapor moisture transfer into consideration, and using discretecontinual approach is proposed. New formulas for single-layer and multilayer enclosing structures allowing for numerical analytic determination of moisture potential value in any enclosing structure section, at any moment of time, under continuous control of temperature distribution, have been derived. Moisture distribution has been studied for a number of enclosing structures using different methods of moisture potential theory: unsteadystate method, quasi-stationary method, the proposed discrete-continual method. Moisture regime has been determined for single-layer enclosing structure with ceramic brick basement and lime brick cladding in Moscow. It is shown that the greatest moisture value is achieved in enclosing structure calculation by means of steady-state method. Unsteady-state method gives more accurate moisture distribution. The proposed discretecontinual method gives quantitative and qualitative result of moisture distribution similar to results obtained by unsteady-state method. The benefit of discrete-continual method is a distribution obtained analytically, which allows to use solution results without numerical method application.

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Using Handheld Moisture Meters on Limestone: Factors Affecting Performance and Guidelines for Best Practice

Cited by 37 publications

References 2 publications

A multi‐method investigation of temperature, moisture and salt dynamics in tafoni (Tafraoute, Morocco)

A multi‐method investigation of temperature, moisture and salt dynamics in tafoni (Tafraoute, Morocco)

Engineering Geology for Society and Territory - Volume 8

Assessment of enclosing structure moisture regime using moisture potential theory

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