The Usability of Clay/Pumice Mixtures Modified with Biopolymer as an Impermeable Liner

다국어 초록 (Multilingual Abstract)

In geotechnical engineering, it is frequently benefited from clays as an impermeable liner in landfills, as a clay core providing impermeability in earth dams. However, geotechnical properties of such soils may change in the course of time due to the changes occurred in their water contents depending on the clay’s mineralogical and chemical structure. To overcome such problems, clay soils are attempted to be improved with chemical additives. In this research, geotechnical properties of the specimens that had been obtained by mixing pumice-containing clay soils with biopolymers were studied. For this purpose, firstly, natural clay was mixed with the pumice powder at certain percentages to produce clays containing pumice. Then, these pumice containing clays were interacted with locust bean gum at certain percentages to produce clay-pumice specimens containing biopolymer. The experimental results showed that liquid limit values increase with the increase in the biopolymer percentage, and the specimens exhibit non-plastic characteristic. Furthermore, with the increase in locust bean gum, dry unit weights of the specimens decreased, their unconfined compressive strength increased and their hydraulic conductivity values changed. Thus, it may be said that clay/pumice mixtures containing that eco-friendly biopolymer may be used in landfill areas as an impermeable liner.

참고문헌 (Reference)

1 Saltan M, "Utilization of pumice waste for clayey subgrade of pavements" 23 (23): 1616-1623, 2011

2 Kalay E, "Using pumice, marble dust and lime for stabilization of compacted high plasticity clay" Suleyman Demirel University 2010

3 Dehghan H, "Use of xanthan and guar gums in soil strengthening" 21 (21): 155-165, 2019

4 Smitha S, "Use of agar biopolymer to improve the shear strength behavior of Sabarmati sand" 10 (10): 387-400, 2016

5 Kurt ZN, "The dynamic shear modulus and damping ratio of clay nanocomposites" 62 (62): 313-323, 2014

6 Qureshi MU, "Strength and durability characteristics of biopolymer-treated desert sand" 12 (12): 785-801, 2017

7 "Standard test methods for one-dimensional swell or settlement potential of cohesive soils. ASTM D 4546-14"

8 "Standard test methods for laboratory compaction characteristics of soil using standard effort. ASTM D 698-12"

9 "Standard test method for measurement of hydraulic conductivity of porous material using a rigid-wall, compactionmold permeameter. ASTM D 5856-15"

10 "Standard test method for liquid limit, plastic limit, and plasticity index of soils. ASTM D 4318-17"

11 Kurt ZN, "Some geotechnical properties of clay nanocomposites" 61 (61): 381-388, 2017

12 Ministry of Environment and Forestry, "Regulation of sanitary landfills. No: 27533"

13 Whitham AG, "Pumice" 48 (48): 209-223, 1986

14 Gündüz L, "Pomza teknolojisi" SDÜ Yayını 288-, 1998

15 Sharma B, "Plastic limit, liquid limit and undrained shear strength of soil-Reappraisal" 129 (129): 774-777, 2003

16 Gokalp Z, "Permeability characteristics of pumice-bentonite mixtures in comparison with sand-bentonite mixtures" 7 (7): 2816-2826, 2012

17 Viswanath SM, "Mechanical properties of biopolymerstabilised soil-based construction materials" 7 (7): 1-18, 2017

18 Dey P, "Locust bean gum and its application in pharmacy and biotechnology : An overview" 4 (4): 7-11, 2012

19 Barak S, "Locust bean gum : Processing, properties and food applications-A review" 66 : 74-80, 2014

20 Jefferson I, "Liquid limit and the temperature sensitivity of clays" 4 (4): 95-109, 1998

21 Kurt ZN, "Investigation of the strength properties of surfactant modified clay" Ataturk University 2009

22 Kurt Albayrak ZN, "Investigation of consistency properties of clay/pumice mixtures modified with a biopolymer" 2017

23 Chang I, "Introduction of microbial biopolymers in soil treatment for future environmentally-friendly and sustainable geotechnical engineering" 8 (8): 251-, 2016

24 Lopes da Silva JA, "Influence of temperature on the dynamic and steady-shear rheology of pectin dispersions" 23 (23): 77-87, 1994

25 Maier M, "Industrial gums polysaccharides and their derivatives" Academic Press 205-213, 1993

26 Khatami HR, "Improving mechanical properties of sand using biopolymers" 139 (139): 1402-1406, 2013

27 Ayhan A, "Improvement of engineering properties of soils with biopolymer additives" Celal Bayar University 2011

28 Taytak B, "Improvement of engineering properties of soils by biopolymer additives" 2012

29 Wiszniewski M, "Hydraulic conductivity of a biopolymer treated sand" 243 : 19-27, 2014

30 Lee S, "Geotechnical shear behavior of xanthan gum biopolymer treated sand from direct shear testing" 12 (12): 831-847, 2017

31 Chang I, "Geotechnical behavior of a beta-1, 3/1, 6-glucan biopolymer-treated residual soil" 7 (7): 633-647, 2014

32 Mitchell JK, "Fundamentals of soil behavior" John Wiley & Sons, Inc 2005

33 Heidarzadeh H, "Evaluation of the importance of gradually releasing stress around excavation regions in soil media and the effect of liners installation time on tunneling" 38 (38): 2213-2225, 2020

34 Heidarzadeh H, "Evaluation of modified cam-clay constitutive model in flac and its development by fish programming" 2019

35 Ayeldeen MK, "Evaluating the physical characteristics of biopolymer/soil mixtures" 9 : 371-, 2016

36 Ayeldeen, M, "Enhancing mechanical behaviors of collapsible soil using two biopolymers" 9 (9): 329-339, 2017

37 Cabalar AF, "Effects of xanthan gum biopolymer on the permeability, odometer, unconfıned compressive and triaxial shear behavior of a sand" 54 (54): 356-361, 2017

38 Chang I, "Effects of xanthan gum biopolymer on soil strengthening" 74 : 65-72, 2015

39 Akbulut N, "Effects of biopolymer on some geotechnical properties of a sand" 243 : 28-37, 2014

40 Nugent RA, "Effect of exopolymers on the liquid limit of clays and its engineering implications" 2101 (2101): 34-43, 2009

41 US EPA, "Criteria for municipal solid waste landfills (MSWLF Criteria)"

42 MTA, "Bitlis ili maden ve enerji kaynakları" General Directorate of Mineral Research and Exploration (MTA)

43 van de Velde K, "Biopolymers : Overview of several properties and consequences on their applications" 21 (21): 433-442, 2002

44 Chen R, "Biopolymer stabilization of mine tailings" 139 (139): 1802-1807, 2013

45 Biju MS, "Biopolymer modified soil: Prospects of a promising green technology" 2016

46 Petersson L, "Biopolymer based nanocomposites : Comparing layered silicates and microcrystalline cellulose as nanoreinforcement" 66 (66): 2187-2196, 2006

47 "BS 1377, Methods of test for soils for civil engineering purposes. Classification tests"

48 Aminpour M, "Applications of biopolymers in dam construction and operation activities" 2015

49 Holtz RD, "An Introduction to geotechnical engineering" Prentice Hall Inc 733-, 1981

50 "ASTM D 2166-16, Standard test method for unconfined compressive strength of cohesive soil. ASTM D 2166-16"

51 Varol OO, "A general overview of pumice mining in Van and Bitlis provinces" 55 (55): 27-34, 2016