Using MEMS based RH sensor to measure high total suction

M. G. Arab; Claudia Zapata; F. A M Marinho

doi:10.3233/978-1-60750-031-5-1881

Using MEMS based RH sensor to measure high total suction

M. G. Arab, Claudia Zapata, F. A M Marinho

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

It is well known that suction is one of the stress state variables that control the behavior of soils and some porous materials. This paper presents a sensor based on Micro electromechanical systems (MEMS) technology that allows the detection of changes in relative humidity (RH) within the soil. By using thermodynamic concepts, the RH can be converted to total suction. The sensor delivers a quick response time, no hysteresis and it is not affected by temperature. The MEMS sensor exhibited a much faster response to changes in relative humidity (total suction) when compared with the non-contact filter paper technique. The MEMS sensor was also used to measure high total suction in two clayey soils and proved to improve the SWCC fit.

Original language	English (US)
Title of host publication	Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering
Subtitle of host publication	The Academia and Practice of Geotechnical Engineering
Pages	1881-1884
Number of pages	4
DOIs	https://doi.org/10.3233/978-1-60750-031-5-1881
State	Published - Dec 1 2009
Event	17th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2009 - Alexandria, Egypt Duration: Oct 5 2009 → Oct 9 2009

Publication series

Name	Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering
Volume	3

Other

Other	17th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2009
Country	Egypt
City	Alexandria
Period	10/5/09 → 10/9/09

Keywords

Arid regions
MEMS
Relative humidity
Saturated salts
Total suction

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology

Access to Document

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Cite this

Arab, M. G., Zapata, C., & Marinho, F. A. M. (2009). Using MEMS based RH sensor to measure high total suction. In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering (pp. 1881-1884). (Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering; Vol. 3). https://doi.org/10.3233/978-1-60750-031-5-1881

Using MEMS based RH sensor to measure high total suction. / Arab, M. G.; Zapata, Claudia; Marinho, F. A M.

Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering. 2009. p. 1881-1884 (Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Arab, MG, Zapata, C & Marinho, FAM 2009, Using MEMS based RH sensor to measure high total suction. in Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering. Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering, vol. 3, pp. 1881-1884, 17th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2009, Alexandria, Egypt, 10/5/09. https://doi.org/10.3233/978-1-60750-031-5-1881

Arab MG, Zapata C, Marinho FAM. Using MEMS based RH sensor to measure high total suction. In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering. 2009. p. 1881-1884. (Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering). https://doi.org/10.3233/978-1-60750-031-5-1881

Arab, M. G. ; Zapata, Claudia ; Marinho, F. A M. / Using MEMS based RH sensor to measure high total suction. Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering. 2009. pp. 1881-1884 (Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering).

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