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Setting Shrinkage, Thermal Expansion Coefficient and Compressive Strength of Recycled PET Polymer Concrete with Montmorillonite

몬모릴로라이트를 이용한 재활용 PET폴리머 콘크리트의 경화수축, 온도팽창계수, 압축강도

  • Jo Byong-Wan (Dept. to Civil Engineering, Hanyang University) ;
  • Tae Ghi-Ho (Dept. to Civil Engineering, Hanyang University) ;
  • Lee Du-Wha (Dept. to Civil Engineering, Hanyang University)
  • Published : 2004.04.01

Abstract

Recently, as concerns over environmental issues are raised more and more trend to use recycled waste for producing construction materials is also raised. Especially, a case of waste resin is considerably destroying the environment due to disposal way that most waste resin produced is disposed of landfill. This study is performed by polymer concrete with recycled PET resin in terms of obtaining safely clean construction resources and protection of environment. High setting shrinkage and sensitivity to heat are main disadvantages of Polymer Concrete (PC) despites of a lot merits. The aim of this study is to investigate basic properties such as setting shrinkage, length change and sensitivity to heat about PET recycled polymer concrete. The other is to check the possibility of use of Montmorillonite as one of a lot of additive without special coupling agent. As results of experiments, various properties of polymer concrete with recycled PET resin are similar with conventional PC except that polymerization time is longer. Montmorillonite was efficiently used to reduce setting shrinkage, length change and coenicient of thermal expansion related to heat with enhanced strength

최근에 환경문제가 대두됨에 따라 재활용을 이용한 건설재료의 개발 또한 관심이 대두되고 있다. 특히, 대부분 매립을 하여 처리하는 폐수지의 경우에는 심각한 환경문제를 일으키고 있다. 본 연구에서는 안전한 건설자원을 확보하고 환경을 보호하는 차원에서 재활용 PET 수지를 이용한 폴리머 콘크리트를 활용하였다. 폴리머 콘크리트의 많은 장점에도 불구하고, 높은 경화수축량과 열에 대한 민감성은 폴리머 콘크리트의 단점으로 지적되고 있다. 본 연구에서는 재활용 PET 수지를 이용한 폴리머 콘크리트의 기본적인 물성치이자 결점인 경화 수축과 그로 인한 길이 변화, 온도팽창계수, 압축강도를 측정하고, 그러한 결점을 보완하고자 Mont.를 특별한 결합재 없이 첨가제로만 사용하여 그 적용 가능성을 알아보고자 하였다. 그 결과, PET 재활용 폴리머 콘크리트는 일반적인 폴리머 콘크리트와 여러가지 물성치에서 비슷한 경향을 보였으나, 중합반응이 일어나는 시간이 상대적으로 긴 것으로 나타났다. 또한, 본 연구를 통하여 Mont.가 경화수축과 길이 변화 그리고 온도팽창 계수, 강도 등의 물성치에 영향을 미치는 것으로 나타났으며, 첨가제로써의 사용성이 있는 것임이 확인되었다.

Keywords

References

  1. Boriek, 'Modelling of setting stresses in particlereinforced polymer composites using finite elementanalysis,' Ph.D. at Rice Univ. in Texas, October1990, 5pp
  2. Haque, 'Pysicochemical Interactions Between Montmo-rillonite and Polymerizing Systems,' Ph.D. at RiceUniv. in Texas, April 1986, 13pp.
  3. Helal, 'Experimental Study of Mechanical Propertiesand Structural Applications of Polymer Concrete,'Ph.D. at Austine in Texas, 1978, pp.5-7;78-8
  4. Kobayashi, Nawata, 'Reduction in Setting Srhinkageof Polyurethane Methacrylate Concrete,' The Production Performance & Potential of Polymers inConcrete, Proceedings of the 5th ICPIC, Brighton,England, 1992, pp.179-184
  5. ASTM C 531. 'Standard test method for linearshrinkage and coefficient of thermal expansion ofchemical-resistant mortar-grouts, monholitic surfacingand polymer concretes,' Annual Book of ASTMStandards, USA, 2000, pp.1-4
  6. Park Chang, 'Nanocomposites Based on Montmorillonite and Thermotropic Liquid CrystallinePolyester,' The Journal of Polymer, Vol. 24, No. 3,May 2000, pp.339-406
  7. Peschke, H.J., 'Stress and Strain Analysis BetweenCementitious Concrete and Polymer Concrete,' 3thICPIC, 1994, pp.477-489
  8. Rebeiz, 'Structural use of Polymer Composites usingUnsaturated Polymer Resins based on RecycledPo1y(ethy1ene terephthalate),' Ph.D. at Austine inTexas, 1992, pp.59-62
  9. Stanley, 'Investigation of Dow Polyesteramide Resinsfor Use in Polymer Concrete,' The University ofTexas at Austin, 1984, pp.65-68