le EditView Window Help 4(1)-CEGR325.pdf Homework_4(1)-C... x DEPARTMENT OF CIVI
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le EditView Window Help 4(1)-CEGR325.pdf Homework_4(1)-C... x DEPARTMENT OF CIVIL ENGINEERING CEGR 325 GEOTECHNICAL ENGINEERING AND LABORATORY Home Work 4 Due Thursday July 26 In many aroas of the world, soft clays are drodgod from a coastal area noar tho soa and placod inside containment dikes with wiors for water to escapo. Tho idoa is to dovelop areas above the water surface future construction. What chemical could bo added to the slurry to onablo it to gain strength in a shorter time than would bo possible without chemicals ? 1.Explanation / Answer
The dredged clay generally has high compressibility and low shear strength. Therefore it has to be treated with the polymers or admixtures.
The best admixture that has been tested in labs is Bentonite slurry. Various test results have shown that the compressibility of the clay gets reduced while the shear strength increases with the addition of the Bentonite. Bentonite has swelling properties, therefore, it also provides volume to the clay. Therefore the Bentonite must be added to the clay to provide the short time strength.
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