Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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The Effect of Water Soluble Polymer on the Flexural Strength and Moisture Sensitivity in MDF Cement Composites

MDF 시멘트 복합재료의 휨강도와 수분민강성에 미치는 수용성 폴리머의 영향

  • 김태현 (한양대학교 무기재료공학과) ;
  • 최상흘 (한양대학교 무기재료공학과)
  • Published : 1992.04.01
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Abstract

Flexural strength, microstructure, hydration reaction and moisture sensitivity in macro defect-free (MDF) cement, which basically prepared of high alumina cement (HAC) and hydroxypropyl methylcellulose (HPMC) and polyvinylalcohol (PVA) as water soluble polymer were investigated. Cement composites based on HAC-PVA system were improved in flexural strength than that of HAC-HPMC system especially, the strength of specimens added to 10 wt% of polyvinylalcohol was 160 MPa. These improvements of flexural strength were attributed to not only the effect of water soluble polymer in elimination of macropores (above 100 $\mu\textrm{m}$) and cement grain bridging, but the effect of unhydrate cement as an aggregate. Moisture sensitivity and flexural strength in wet condition of MDF cement composites immersed in water at 80$^{\circ}C$ for 3 days were decreased.

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References

  1. Nature v.289 Flexural Strength and Porosity of Cement J.D. Birchall;A.J. Howard;K. Kendall
  2. European Patent No. 0021682 J.D. Birchall;A.J. Howard;K. Kendall
  3. Phil. Trans. R. Soc. London v.A310 The Relation between Porosity, Microstructure and Strength and the Approach to Advanced Cement-Based Materials K. Kendall;A.J. Howard;J.D. Birchall
  4. Mater. Res. Soc. Symp. Proc. v.42 The Properties and Potential Applications of Macro-Defect-Free Cement N.M. Alford;J.D. Birchall
  5. J. Mater. Sci. v.19 The Interaction between MDF Cements and Tissues D.F. Williams;A. Mcnamara
  6. J. Mater. Sci v.24 Dielectric Properties of Macro-Defect Free Cements G.V. Chandrashekhar;E.I. Cooper;M.W. Shager
  7. Phill. Trans. R. Soc. London v.A310 Cement in the Context of New Materials for an Energy-Expensive Future J.D. Birchall
  8. Am. Ceram. Soc. Bull v.69 no.8 Current Research at the NSF Science and Technology Center for Advanced Cement-Based Materials S.P. Shar;J.F. Young
  9. J. Mater. Sci. v.20 High Strength Cement Pastes: Part 1 Micro Structures W. Sinclair;G.W. Groves
  10. 요업학회지 v.27 고강도 시멘트 경화체의 특성에 미치는 미세구조의 영향(Ⅱ) 김정환;최상흘;한기성
  11. 高分子刊行會 プラスチックス コソクリ-ト 波木 守;大浜嘉彦
  12. J. Mater. Sci v.20 High Strength Cement Pastes:Part 2 Reactions During Setting S.A. Rodger;S.A. Brooks;W. Sinclair;G.W. Groves;D.D Double
  13. J. Am. ceram. Soc. v.74 Microstructural and Microchemical Characterization of a calcium Aluminate-Polymer Compostie(MDF Cement) O.O. PoPoola;W.M. Kriven;J.F. Young
  14. Cem. Conc. Res. v.11 A Theoretical Agument for the Existence of High Strength Pastes N.M. Alford
  15. Proc. Mat. Res. Soc. Symp. Mechenisms of Crack Growth Resistance in Macro-Defect-Free Cement Paste Y.W. Mai;B. Baraket;B. Cotterell;M. Swain
  16. Proc. Mat. Res. Soc. symp. Expansion Property of Macrodefect-Free Cement in Water N. Kataoka;H. Igarashi
  17. 耐火物 v.34 no.11 Hydration of Cement-Portland Cement and Alumina Cement M. Daimon;K. Asaga