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http://dx.doi.org/10.14190/JRCR.2019.7.4.349

Field Applicability Assessment of Controlled Low Strength Material for Sewer Pipe using Excavated Soil  

Kim, Young-Wook (Daejeon & Chungnam Branch, Korea Conformity Laboratories)
Lee, Bong-Chun (Built Environment Materials Center, Korea Conformity Laboratories)
Jung, Sang-Hwa ((Yeungnam Division, Korea Conformity Laboratories)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.7, no.4, 2019 , pp. 349-357 More about this Journal
Abstract
Controlled low strength material(CLSM) has been developed using variety of material such as excavated soil, industrial by-product and industrial waste. But theses research limited at laboratory test and failed at commercialization. So in this paper evaluates CLSM used excavated soil characteristics such as flowability, bleeding rate, early strength for following process and 28day strength for re-excavatability. Also, various mix proportion of CLSM by water-binder ratio and soil-binder ratio were evaluated in laboratory. And derive the optimized CLSM mix proportion for using at field application test by movable batch plant. After applying CLSM at trench, evaluate core sample strength and excavatability by shovel, pickax and excavator for verify re-excavation. Furthermore, measure the level change after casting CLSM to inspect subsidence stability. As results of these assessments, not only confirmed the characteristics of CLSM at field but the fillability around pipe and subsidence stability.
Keywords
Excavated soil; Controlled low strength material; Flowability; Bleeding rate; Re-excavation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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