Reinforcement of Concrete Structure by Impregnation of Molten Sulfur

용융황 침투에 의한 콘크리트 구조물의 물성 증진에 관한 연구

  • 김종국 (연세대학교 공과대학 화학공학과) ;
  • 오준택 (연세대학교 공과대학 화학공학과) ;
  • 설용건 (연세대학교 공과대학 화학공학과) ;
  • 김우식 (연세대학교 공과대학 화학공학과)
  • Published : 1989.06.01

Abstract

This study aims to reinforce concrete structure by impregnation of molten sulfur. The improved properties of sulfur impregnated concerete were confirmed by compressive strength test and water proof effect. Following variables were adopted to evaluate impregnation parameters ; 1) the effect of water content in concrete structure (0-8%) 2) impregnation time of molten sulfur(0-22hr) 3) impregnation temprature of molten sulfur(13$0^{\circ}C$, 14$0^{\circ}C$). In partial ponding experiments, the concrete specimen of sulfur impregnated by 2wt% yields 1.5 times higher value of compressive strength than that of control one(non-impregnated concerte). In complete ponding experiments, the mortar specimen of slufur impregnated by 12-14wt% yields 2-3 times higher value of compressive strength than that of control one (non-impregnated mortar). From the examination of X-ray diffractions, $\alpha$-sulfur was found in concrete pores. Homogeneous impregation of molten sulfur into concrete pores was also identified with poresize analysis and micrographs of SEM.

Keywords

References

  1. Mag. of Concrete Res. v.26-86 Polymer-Impregnated Concrete as a Structural Material W.F. Chen;E.D. Jorgensen
  2. Cement and Concrete Res. v.17 Flexural Behavior of Polyester Polymer Concrete C. Vipulanandan;N. Dharmaragan
  3. J. ACI. v.73-35 Effect of Moisture Content and Drying Method on the Penetration of Monomers into Concrete C.P. Denis;D.C. Philip
  4. Cement and Concrete Res. v.12 Durability of Cement and Glass Impregnated with Sulfur and Polymethyl Methacrylate G.G. Litvan;R.F. Feldman
  5. Cement and Concrete Res. v.8 Some Factors Affecting Durability of Sulfur-Impregnated Porous Bodies R.F. Feldman;J.J. Beaudoin
  6. Mineral Science Laboratories Report v.58-21 Long-Term Strength and Durability of Sulfur-Infiltrated Concrete V.M. Malhotra;G. Carette
  7. Mineral Science Laborateries Report v.58-22 Investigation of Concrete Impregnated with Sulfur at Atmospheric Pressure S.P. Shah;A.E. Naarman
  8. Cement and Comcrete Res. v.13 Factors Influencing the Modulus of Rupture of Sultur-Infiltrated Concrete M.S. Alam;R.S. Juruf
  9. Cement and Concrete Res. v.9 Studies on Improving Moisture Resistance of Sulfur-Infiltrated Mortars P.K. Mehta;S.S. Chen
  10. Cement and Concrete Res. v.13 Prediction of Compressive Strength of SIC for Variable Sulfur Loading M.S. Alam;R.S. Juruf
  11. Cement and Concrete Res. v.13 Chemical Investigation on the Leaching of Sulfur from Sulfur Infiltrated Concrete J.R. Lusty;G. Courval
  12. Cement and Concrete Res. v.15 Mass Transfer of Water Vapor through Concrete R.H. Mills
  13. Properties of Concrete A.M. Neville
  14. Encyclopedia of Chemical Technology Kirk, Othmer(ed.)