A Characteristic on Difference of Water Content with Temperature and Compaction of Gypsum to Utilize Fill Material
2012
Seo, D.U., Rural Research Institute, Ansan, Republic of Korea | Yu, B.S., Namhae Chemical Co., Yosu, Republic of Korea
As a large construction such as highway, dam, reclaimed land etc. increase in number more and more, large amount of fill materials are required. It is needed to utilize a gypsum which is a by-product yielded from chemical plants, as fill materials. Though some studies have been conducted to know a engineering characteristic of gypsum, it is not certain that water contents were checked at 45℃ dry oven. This study proposed that water contents must be measured at 45℃ dry condition because gypsum is changed to other types as a dry temperature. As the results obtained by compaction tests, it is found that moisture of gypsum in compaction must be within -5.0~2.5 % O.M.C (optimal moisture content).
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