THE EFFECT OF CEMENT ADDITION ON PHYSICAL AND HYDRAULICAL PROPERTIES OF KAHRIZAK UNSATURATED CLAY SOIL (USED IN FINAL BARRIER LAYER OF KAHRIZAK SANITARY LANDFILL)

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EBADI T.; KHAZAEI HAMID; SOROUSH A.

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Paper Information

Journal: JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY Year:2006 | Volume:8 | Issue:1 (28) Page(s): 2-12

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Title

THE EFFECT OF CEMENT ADDITION ON PHYSICAL AND HYDRAULICAL PROPERTIES OF KAHRIZAK UNSATURATED CLAY SOIL (USED IN FINAL BARRIER LAYER OF KAHRIZAK SANITARY LANDFILL)

Author(s)

EBADI T. | KHAZAEI HAMID | SOROUSH A. | Issue Writer Certificate

Keywords

BARRIER LAYERQ3

FINAL COVER OF SANITARY LANDFILLSQ3

PHYSICAL PROPERTIES AND UNSATURATED HYDRAULIC PROPERTIESQ3

EFFECTS OF CEMENT ON CLAYQ3

Abstract

One of the most important points in landfill construction is the design of the BARRIER LAYER of the final cover that prevents surface water from infiltrating into the landfill and controls the excess of leachate generation. Since the .final cover is frequently subject to wetting and drying, generation of cracks and pores is unavoidable. In macroscopic scale, these cracks increase the permeability. In this research, Kahrizak clay soil (soil of landfill site of Tehran), has been selected and its characteristics such as swelling, plasticity, shrinkage and unsaturated permeability, and the effect of cement on these characteristics were studied. The results, in general, show that the unsaturated permeability increases as the cement percentage increases. Also, the comparison between the results of the test on different clay-cement samples confirms the least permeability for the sample with 3% of cement. Other Results show that PI (plasticity index) decreases as the cement percentage increases, but the new PI is in the acceptable range to reach the least permeability [2]. The results also show that swelling and shrinkage decrease as the cement percentage increases. Finally, it can be concluded that although the addition of cement does not decrease the unsaturated' permeability, it significantly reduces crack generation, condensation and erosion. It should be noted that the unsaturated permeability value remains under the limit value. Thus, it is recommended that 3 percent of cement be added to Kahrizak clay soil to improve and optimize its properties for being used in the BARRIER LAYER.

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APA: Copy

EBADI, T., KHAZAEI, HAMID, & SOROUSH, A.. (2006). THE EFFECT OF CEMENT ADDITION ON PHYSICAL AND HYDRAULICAL PROPERTIES OF KAHRIZAK UNSATURATED CLAY SOIL (USED IN FINAL BARRIER LAYER OF KAHRIZAK SANITARY LANDFILL). JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 8(1 (28)), 2-12. SID. https://sid.ir/paper/87455/en

Vancouver: Copy

EBADI T., KHAZAEI HAMID, SOROUSH A.. THE EFFECT OF CEMENT ADDITION ON PHYSICAL AND HYDRAULICAL PROPERTIES OF KAHRIZAK UNSATURATED CLAY SOIL (USED IN FINAL BARRIER LAYER OF KAHRIZAK SANITARY LANDFILL). JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY[Internet]. 2006;8(1 (28)):2-12. Available from: https://sid.ir/paper/87455/en

IEEE: Copy

T. EBADI, HAMID KHAZAEI, and A. SOROUSH, “THE EFFECT OF CEMENT ADDITION ON PHYSICAL AND HYDRAULICAL PROPERTIES OF KAHRIZAK UNSATURATED CLAY SOIL (USED IN FINAL BARRIER LAYER OF KAHRIZAK SANITARY LANDFILL),” JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 8, no. 1 (28), pp. 2–12, 2006, [Online]. Available: https://sid.ir/paper/87455/en

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