Publication Date
4-1983
Series Number
67
Abstract
As the seepage rate of 3.1 mm/d was considered too high, sodium tripolyphosphate (STPP) was dissolved in the dam water in an attempt to disperse the clay and reduce the hydraulic conductivity. Application of STPP altered the original sealing layer at first and, as seepage progressed, a new seal started to form at a depth of 0.8 m below the batter. The seepage rate was reduced to 0.39 mm/d and the hydraulic conductivity of this new seal was 2.0 x 10-9 m/s.
Number of Pages
24
Keywords
Dams, Sodium tripolyphosphate, Sealing
Disciplines
Soil Science
Recommended Citation
Pepper, R G.
(1983), Chemical sealing of small earth dams using sodium tripolyphosphate. Department of Primary Industries and Regional Development, Western Australia, Perth. Technical Bulletin 67.
https://library.dpird.wa.gov.au/tech_bull/80
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