Use of Surface Treatment Materials to Improve Concrete Durability
Publication: Journal of Materials in Civil Engineering
Volume 11, Issue 1
Abstract
The effectiveness of concrete surface treatment materials such as silanes, siloxanes, etc., in preventing concrete deterioration due to sulfate attack, carbonation, and chloride-induced reinforcement corrosion was investigated. The effectiveness of these materials in decreasing the sulfate attack was evaluated by measuring the reduction in compressive strength. The chloride diffusion in the coated and uncoated concrete specimens was also evaluated. The performance of these materials in reducing carbonation was studied by exposing the coated and uncoated concrete specimens to a saturated carbon dioxide environment. The reduction in compressive strength due to sulfate attack in the concrete specimens coated with silane/siloxane in conjunction with an acrylic topcoat was very low compared with that in the uncoated concrete specimens and those coated with other surface treatment materials. the chloride diffusion was also least in the concrete specimens coated with silane/siloxane followed by a topcoat. Among all the surface treatment materials tested, silane/siloxane with an acrylic topcoat and two-component acrylic coating were most effective in preventing carbonation of concrete. Furthermore, silane and silane/siloxane with a topcoat were effective in reducing chloride-induced reinforcement corrosion in in-service structures.
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References
1.
Carbrera, J. G., and Hassan, K. G. ( 1990). “The effect of polymeric surface treatment compounds on the water absorption and chloride diffusion of concrete exposed to hot dry environments.” Protection of concrete, R. K. Dhir and J. W. Green, eds., E & FN Spon, London, 697–715.
2.
Crumpton, C. F. ( 1989). “Kansas study questions silane sealer effectiveness.” Concrete Constr., March, 324–326.
3.
Fukute, T., and Hamada, H. ( 1990). “Surface coatings for improving performance of concrete under marine environments.” Protection of concrete, R. K. Dhir and J. W. Green, eds., E & FN Spon, London, 317–330.
4.
Kamal, M. M., and Salama, A. E. ( 1990). “Protection of reinforced concrete elements against corrosion by polymer coating.” Protection of concrete, R. K. Dhir and J. W. Green, eds., E & FN Spon, London, 281–291.
5.
Katawaki, K. ( 1990). “Recent developments of protection techniques for concrete structures in Japan.” Protection of concrete, R. K. Dhir and J. W. Green, eds., E & FN Spon, London, 355–366.
6.
Leeming, M. ( 1990). “Surface treatments for the protection of concrete.” Protection of concrete, R. K. Dhir and J. W. Green, eds., E & FN Spon, London, 135–148.
7.
Maslehuddin, M., Rasheeduzzafar, Al-Amoudi, O. S. B., and Al-Mana, A. I. ( 1994). “Performance of concrete in a very aggressive environment.” ACI Special Publication, SP-144, American Concrete Institute, Detroit, 191–211.
8.
Rasheeduzzafar, Dakhil, F. H., and Al-Gahtani, A. S. ( 1984). “Deterioration of concrete structures in the environment of Middle East.” ACI J. Proc., 81(1), 13–20.
9.
Rasheeduzzafar, Dakhil, F. H., and Al-Gahtani, A. S. ( 1985). “Corrosion of reinforcement in concrete structures in the Middle East.” Concrete Int.: Des. and Constr., 7(9), 48–55.
10.
Sharif, A. M., Azad, A. K., Navaz, C. M., and Loughlin, K. F. ( 1997). “Chloride diffusion coefficient of concrete in the Arabian Gulf environment.” Arabian J. Sci. and Engrg., 22(2B), 169–182.
11.
Stern, M., and Geary, A. L. ( 1957). “A theoretical analysis of the slope of the polarization curves.” J. Electrochem. Soc., 104, 56.
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Published online: Feb 1, 1999
Published in print: Feb 1999
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