Frequency Analysis and Measurements of Moisture Content of AAC Masonry Constructions by EIS

Rubene, Sanita; Vilnītis, Mārtiņš; Noviks, Juris

doi:10.1016/j.proeng.2015.10.096

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…Also, the manufacture of high-performance concrete requires the measurement of the moisture state during the concrete manufacturing process. (2,3) In addition, to diagnose the deterioration of concrete structures, it is also necessary to measure the water condition in concrete. For the moisture measurement of concrete, a dielectric hygrometer or the like, which can detect changes in capacitance, is used.…”

Section: Introductionmentioning

confidence: 99%

Pursuing a Possibility of Fabricating Moisture Measurement Devices Using Microwaves Passing through Materials ?Proposition of Measuring Quantity of Water Level Using Microwaves Passing through the Water Tank as the First Step of Development?

Akimoto¹,

Maruyama²,

Miyagawa³

et al. 2019

Sensors and Materials

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In recent years, an increasing number of sensors are being required in various industrial or automated production techniques. In particular, the need for moisture measurement is high, but a noncontact high-precision moisture sensor has not been put to practical use. Therefore, in this research, we focused on a moisture sensor that transmits microwaves and tested two methods for evaluation and verification. In the experiment, the water in the water tank was measured using radio waves of 2.4 GHz. As a result, although measurement could not be performed with high accuracy using the received signal strength, measurement using the propagation delay time was highly accurate. This result will provide an index for the application of moisture sensors using microwaves in the future.

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Section: Introductionmentioning

confidence: 99%

Pursuing a Possibility of Fabricating Moisture Measurement Devices Using Microwaves Passing through Materials ?Proposition of Measuring Quantity of Water Level Using Microwaves Passing through the Water Tank as the First Step of Development?

Akimoto¹,

Maruyama²,

Miyagawa³

et al. 2019

Sensors and Materials

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Humidity in the walls from aerated concrete for conditions northeast Asia

2023

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The influence of the characteristics of external finishing coatings on the humidity regime in walls made of aerated concrete grades D350-D500 for buildings located in the geographic subregion of Northeast Asia has been assessed. The temperature of the onset of condensation has been determined depending on the type of finishing layer. The amount of condensed moisture in the fence in winter is calculated. The humidity regime in the walls was compared for the conditions of the Russian cities of Khabarovsk and Vladivostok, as well as for cities located in China close to the border with Russia - Beijing and Harbin. It has been established that the humidity regime of walls made of aerated concrete grades D350-D500, for the considered cities of China, to a greater extent, in comparison with the considered cities of Russia, depends on the characteristics of the external finishing coating.

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