Killi zeminlerin polimerik metil difenil izosiyanat sıvı polimeri ile iyileştirilmesi

Year 2018, Volume: 9 Issue: 1, 475 - 482, 05.04.2018

Altuğ Saygılı

Abstract

Zemin iyileştirme yöntemleri, gelişen şehirleşme ve endüstrileşme sonucunda daha çok alan kullanımına ihtiyaç duyulması nedeniyle gün geçtikçe uygulamada tercih edilen metotlardan biri haline gelmiştir. Bir diğer tercih sebebi ise yeni geliştirilen metot ve malzemeler ile geleneksel yöntemlere göre daha ekonomik ve hızlı çözümlerin elde edilebilmesidir. Kimyasal stabilizasyon, kimyasal stabilizörlerin son yıllarda gelişen polimer endüstrisi sayesinde zemin iyileştirme uygulamalarında kullanımı, gerçekleştirilen uygulamaların ekonomik oluşu, kolay uygulanabilirlik ve erken dayanım kazanma nedenleri ile tercih edilen metotlardan biri haline gelmiştir. Gerçekleştirilen çalışmada yerli üreticilerden temin edilen sıvı haldeki polimerik metil difenil izosiyanat polimerinin, kaolin kilinin mühendislik özellikleri üzerindeki etkileri araştırılmıştır. Polimerik metil difenil izosiyanat sıvı polimeri optimum su muhtevasında sıkıştırılmış kaolin numuneler içerisine farklı oranlarda eklenerek serbest basınç dayanımlarındaki değişimler değerlendirilmiştir. Sıvı polimer yüzde 3, 6, 9 ve 12 oranlarında numunelere optimum su muhtevasını geçmeyecek şekilde, su ile yer değiştirerek eklenmiş ve hazırlanan polimer katkılı numuneler 3, 7, 14 ve 28 gün boyunca küre tabii tutulmuşlardır. Kür süresi sonunda farklı katkı oranlarına sahip numuneler serbest basınç testlerine tabii tutulmuş, polimer katkı oranı ve kür süresi arttıkça dayanımlarda kayda değer miktarda artışlar tespit edilmiştir.

Keywords

Kaolin, kil, serbest basınç dayanımı, zemin stabilizasyonu, polimerik metil difenil izosiyanat, sıvı polimer

References

• Ajalloeian R., Matinmanesh H., Abtahi S., Rowshanzamir M., (2013). Effect of polyvinyl acetate grout injection on geotechnical properties of fine sand, Geomechanics and Geoengineering, 8(2), 86–96.
• Al-Khanbashi A., El-Gamal M., (2003). Modification of sandy soil using water-borne Polymer, Journal of Applied Polymer Science, 88(10), 2484–2491.
• Al-Khanbashi A., Abdalla S., (2006). Evaluation of three waterborne polymers as stabilizers for sandy soil, Geotechnical and Geological Engineering, 24(6), 1603–1625.
• Anagnostopoulos C., Hadjispyrou S., (2004). Laboratory study of an epoxy resin grouted sand, Ground Improvement, 8(1), 39–45.
• Anagnostopoulos C., Papaliangas T., (2012). Experimental investigation of epoxy resin and sand mixes, Journal of Geotechnical and Geoenvironmental Engineering, 138(7), 841–849.
• Anagnostopoulos C., Kandiliotis P., Lola M., Karavatos S., (2013). Effect of epoxy resin mixtures on the physical and mechanical properties of sand, Research Journal of Applied Sciences Engineering and Technology,7(17), 3478–3490.
• Camberfort H., (1977). The principles and applications of grouting, Quarterly Journal of Engineering Geology and Hydrogeology, 10(2), 57–95.
• Gilazghi S., Huang J., Rezaeimalek S., Bin-Shafique S., (2016). Stabilizing sulfate-rich high plasticity clay with moisture activated polymerization, Engineering Geology, 211, 171–178.
• Harris P., Holdt P., Sebesta S., (2006). Recommendations for Stabilization of High – Sulfate Soils in Texas, Federal Highway Administration, Texas Transportation Institute, Texas A&M University, FHWA/TX-06/0-4240-3.
• Hilf J., (1991). Compacted fill, H. Fang (Ed.), Foundation Engineering Handbook, Van Nostrand Reinhold, NewYork, ABD.
• Imbabi M., Carrigan C., McKenna S., (2012). Trends and developments in green cement and concrete technology, International Journal of Sustainable Built Environment, 1(2), 194–216.
• Ingles O.G., Metcalf J.B., (1972). Soil Stabilization: Principles and Practice, Butterworth-Heinemann Ltd, Oxford, Ingiltere.
• Jones E., Ajayi-Majebi A., Grissom W., Smith L., Jones E., (1991). Epoxy-resin-based chemical stabilization of a fine, poorly graded soil system, Transportation Research Records: Journal of Transportation Research Board, 1295, 95–108.
• Katz L., Rauch A., Liljestrand H., Harmon J., Shaw K., Albers H., (2001). Mechanisms of soil stabilization with liquid ionic stabilizer, Transportation Research Records: Journal of Transportation Research Board ,1757, 50–57.
• Li X.J., (2014). Shrinkage Cracking of Soils and Cementitiously-Stabilized Soils: Mechanisms and Modeling, Doktora tezi, Washington State University, ABD.
• Little D.N., (1992). Comparison of in-situ resilient moduli of aggregate base courses with and without low percentages of lime stabilization, ASTM Special Technical Publication, 1135, 8–22.
• Little D., (1995). Stabilization of Pavement Subgrades Base Courses with Lime, Lime Association of Texas, ABD.
• Liu J, Shi B., Jiang H., Huang H., Wang G., Kamai T., (2011). Research on the stabilization treatment of clay slope topsoil by organic polymer soil stabilizer, Engineering Geology, 117, 114–120.
• Mitchell J., (1986). The twentieth Terzaghi lecture, Journal of Geotechnical Engineering, 112(3), 255–289.
• Mohammed A., Vipulanandan C., (2013). Compressive and tensile behavior of polymer treated sulfate contaminated CL Soil, Geotechnical and Geological Engineering, 32(1), 71–83.
• Moustafa A., Bazaraa A., Nour El Din A., (1981). Soil stabilization by polymeric materials, Macromolecular Materials and Engineering, 97(1), 1–12.
• Naeini S., Ghorbanalizadeh M., (2010). Effect of wet and dry conditions on strength of silty sand soils stabilized with epoxy resin polymer, Journal of Applied Sciences, 10(22), 2839–2846.
• Naeini S., Naderinia B., Izadi E., (2012). Unconfined compressive strength of clayey soils stabilized with waterborne polymer, KSCE Journal of Civil Engineering, 16(6), 943–949.
• Newman K., Tingle J., (2004). Emulsion polymers for soil stabilization, Airport Technology Transfer Conference, Atlantic City, New Jersey, ABD.
• Ohama Y., (1995). Handbook of Polymer-Modified Concrete and Mortars, Noyes Publications, Park Ridge, New Jersey, ABD.
• Puppala A.J., Ramakrishna A.M., Hoyos L.R., (2003). Resilient moduli of treated clays from repeated load triaxial test, Transportation Research Records: Journal of Transportation Research Board , 1821, 68–74.
• Rauch A., Harmon J., Katz L., Liljestrand H., (2002). Measured effects of liquid soil stabilizers on engineering properties of clay, Transportation Research Records: Journal of Transportation Research Board, 1787, 33–41.
• Rezaeimalek S., Huang J., Bin-Shafique S., (2017). Evaluation of curing method and mix design of a moisture activated polymer for sand stabilization, Construction and Building Materials,146, 210–220.
• Santoni R., Tingle J., Webster S.,(2002). Stabilization of silty sand with Nontraditional additives, Transportation Research Records: Journal of Transportation Research Board 1787, 61–70.
• Sebesta S.,(2005). Use of microcracking to reduce shrinkage cracking in cementtreated bases, Transportation Research Records: Journal of Transportation Research Board, 1936, 3–11.
• Sherwood P., (1994). Soil Stabilization with Cement and Lime, Stationary office, Londra, Ingiltere.
• Zandieh A., Yasrobi S., (2010). Study of factors affecting the compressive strength of sandy soil stabilized with polymer, Geotechnical and Geological Engineering, 28(2), 139–145.