Issue
Korean Journal of Chemical Engineering,
Vol.27, No.1, 334-339, 2010
Mechanical properties and durability of PMMA impregnated mortar
Polymer impregnated concrete (PIC) is known to exhibit better strength and durability characteristics than the other classes of polymer cement composites. In the work described herein the monomer was impregnated into cement mortar and polymerized by two methods - the conventional thermal method and using microwaves. The mechanical properties and durability characteristics of the samples and on exposure to chemical environments were then evaluated. The above studies revealed that the strengths of PIC specimens were almost 2-3 times better than those of conventional cement mortars. The chemical resistance was also found to be superior even on prolonged exposure to the chemical media. This may be attributed to the protective layer formed by the polymer on the cement mortar, which prevents the external chemical media from interacting with the cement particles. The properties of the PIC specimens prepared by both methods have also been compared and discussed in this paper.
[References]
  1. Clifton J, Knab L, National institute of standards and technology interagency report 89-4086, Gaithersburg MD, 1989
  2. Czarnecki L, Garbacz A, Kurzydlowski K, Proc. of VIII international congress on polymers in concrete, Belgium, 299, 1995
  3. Brum JE, Domaingue JE, The battle of reinforced concrete in concrete repairs, 3, Palladium Publications, London, 1986
  4. Erlin D, Verbeck GJ, Corrosion of metal in concrete: Needed research, ACI spec. Publ., SP-46, 39, 1979
  5. Kopycinski, Bronislaw, Proc. of Colloq. Intern. Durabilite Betons, Rappt. Prelim. Prague, CAN 58:38714, AN 1963:38714, 331, 1961
  6. Gyorgy B, Erika C, Ferenc T, Proceedings of the 10th international congress on the chemistry of cement, Gothenburg, June 2-6, CODEN: 65IBAI, 8, 1997
  7. Nair Priya, Thachil ET, Paul A, J. of Advances in Cement Research, 19, 101, 2007
  8. Ohama Y, Cement and Concrete Composites, 20, 189, 1998
  9. Mangat PS, Limbachiya MK, Construction and Building Materials, 9, 81, 1995
  10. Sebok T, Stranel O, Cement and Concrete Research, 34, 1853, 2004
  11. Steinberg M, Kukachka LE, Colombo P, Kelsch JK, Manowitz B, Dikeou J, Backstrom J, Rubenstein, Concrete polymer materials, first tropical report, Brookhaven National Laboratory, Report No. BNL-50134 (T-509), 83, 1968
  12. Neville AM, Properties of concrete, 4th Edition, Prentice Hall, 2008
  13. Standard test method for laboratory determination of pulse velocities and ultrasonic elastic constants of rock, ASTM D2845-08, 2002
  14. Testing method for compressive strength of hydraulic cements mortar mortar, KS L 5105, 2007
  15. Test methods for polymer modified mortars, KS F 2476, 2007
  16. Standard test method for measurement of rate of absorption of water by hydraulic cement concretes, ASTM C1585-04.
  17. Ohama Y, Chandra S, Polymers in concrete, 4th chapter, Noyes Publications, 1994
  18. Test method for resistance of concrete to rapid freezing and thawing, KS F 2456, 2007
  19. Auskern A, Horn W, J. Am. Ceram. Soc., 54, 282, 1971
  20. Brydson JA, Plastic materials, 7th Edn., Butterworth Heinmann Publishers, Oxford, 1999
  21. Mullick AK, Rajkumar C, Jain NK, 2nd Int. conf. on durability of concrete, Malhotra, V.M., Ed., Montreal SP-126-1, 577, 1991
  22. Ohama Y, Chandra S, Polymers in concrete, 5th chapter, Noyes Publications, USA, 1994