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Title: Effect of Water Treatment Residue on Properties of Compacted Clay Liner
Authors: รุ่งโรจน์ ปิยะภานุวัตน์,ผศ.ดร.
Pornphachara Takachart
Suwimol Asavapisit
Rungroj Piyapanuwat
Keywords: Clay
Water Treatment Residue
Calcium Carbide Residue
Issue Date: 2016
Citation: P. Takachart, S. Asavapisit and R. Piyapanuwat, "Effect of water treatment residue on properties of compacted clay liner," 2015 International Conference on Science and Technology (TICST), 2015, pp. 48-52, doi: 10.1109/TICST.2015.7369338.
Abstract: This research studied the effect of water treatment residue (WTR) and calcium carbide residue (CCR) on properties of compacted clay liner. The mixtures were made from clay with 0, 5, 10 and 15 wt.% of CCR and 0, 50 and 100 wt.% of WTR. The consistency of grained, compressive strength and permeability of liners were investigated. The experimental results showed that liquid limit and compressive strength increased with increasing of CCR loading except plastic index and shrinkage limit decreased. The highest compressive strength was found in compacted clay with 15 wt.% of CCR after 7 days (399 kPa.). When the levels of WTR in compacted clay increased, the liquid, plastic and shrinkage limit decreased. After 3 days of curing, the clay liner with 50 wt.% of WTR replacement gave the highest strength and WTR. At the early curing (7 days), compacted clay liner containing 50 wt.% of WTR replacement and 15 wt.% of CCR gave highest strength thereafter. In addition, Water permeability of compacted clay liner containing less than 50 wt.% of WTR meets the standard limit of landfill liner (1×10-7).
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