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http://dx.doi.org/10.14190/JRCR.2016.4.4.483

Setting Estimation of Cement Paste Using New-type Embedded Sensor  

Shin, Kyung-Joon (Department of Civil Engineering, Chungnam National University)
Lee, Do-Keun (Department of Civil Engineering, Chungnam National University)
Seo, Dong-Wan (Department of Civil Engineering, Chungnam National University)
Yoo, Chul-Min (Department of Civil Engineering, Chungnam National University)
Lim, Min-Hyuk (Department of Civil Engineering, Chungnam National University)
Lim, Sung-Hwan (Department of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.4, no.4, 2016 , pp. 483-488 More about this Journal
Abstract
The present study proposes an economical embedded ring-sensor that can measure a strain behavior of cement paste and mortar in early age. Using the proposed ring-sensor, the experimental method is proposed that can measure the setting time of the cement paste and mortar conveniently. The experimental study has been conducted using the mixtures of which W/C are 0.30, 0.35, 0.40, and 0.45. From the test result, the setting times measured by convectional test methods such as vicat method and penetration resistance method are compared with the setting time proposed by this study. The result reveals that the proposed ring-sensor can effectively measure the early age behavior so that can evaluate the time when the contraction starts. In addition, the contraction starting time can be regarded as a rational setting time, which is similar to the initial setting of convectional test methods.
Keywords
Setting; Shrinkage; Embedded sensor; Ring sensor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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