클링커 제조 조건에 따른 수용성 6가 크롬 용출 특성

이종규; 추용식; 송훈; Jong-Kyu Lee; Yong-Sik Chu; Hun Song

Korean Journal of Materials Research, Vol.21, No.12, 679-684, December, 2011

DOI10.3740/MRSK.2011.21.12.679 Export Citation

클링커 제조 조건에 따른 수용성 6가 크롬 용출 특성

Leaching Properties of Water-Soluble Hexavalent Chromium by Manufacturing Condition of Cement Clinker

이종규^†, 추용식, 송훈

한국세라믹기술원 그린세라믹본부

Jong-Kyu Lee^†, Yong-Sik Chu, and Hun Song

Green Ceramics Division, Korea Institute of Ceramic Eng. & Tech., Seoul 153-801, Korea

E-mail:

One of the trace constituents included in cement clinker, chromium, has become prominent and highly noticed lately as a social issue both inside and outside of this country because it affects the human body negatively. The purpose of the present study was to investigate leaching properties of water-soluble hexavalent chromium by different manufacturing conditions of cement clinker. Raw materials were prepared to add different SiO2, Al2O3 and Fe2O3 sources. After the raw materials, such as limestone, sand and clay, iron ore was pulverized and mixed, and the raw meal was burnt at 1450oC in a furnace with an oxidizing atmosphere. Leaching of soluble hexavalent chromium showed a tendency to decrease with an increasing LSF and IM. However, leaching of soluble hexavalent chromium increased with an increasing S.M. Alkali contents of iron source minerals is closely related to the leaching properties of soluble hexavalent chromium. Green sludge has the highest content of alkali added; leaching of water-soluble hexavalent chromium was mostly high. In order to reduce the water-soluble hexavalent chromium in cement, reducing the alkali content in raw materials is important.

Keywords:cement;modulus;chromium;hexavalent chromium;alkali

[References]

Yum GC, Lee SK, Rho JS, J. Kor. Inst. Resources Recycling, 6(4), 17 (1997)
Hong SS, Lee TH, Lim GG, Oh HK, Lee BH, J. Korean Ind. Eng. Chem., 10(5), 696 (1999)
Svinning K, Datu KA, in Proceedings of the 11th International Congress on the Chemistry of Cement (Durban, South Africa, May 2003) Vol. 2, p. 1080. (2003)
Wang S, Vipulanandan C, Cement Concr. Res., 30, 385 (2000)
Eckert Jr JO, Guo Q, J. Hazard. Mater., 59, 55 (1998)
Potgieter SS, Panichev N, Potgieter JH, Panicheva S, Cement Concr. Res., 33, 1589 (2003)
Lee JH, Chu YS, Song H, Lee JK, Korean J. Mater. Res., 20(4), 181 (2010)
Hanehara S, Yamaguich O, World Cement, March, 23 (2006)
Kolovos K, Tsivilis S, Kakali G, Cement Concr. Compos., 27, 163 (2005)
Jain N, Garg M, Construct. Build. Mater., 22, 1851 (2008)
Lee SH, in Proceedings of the Korean Ceramic Society;Cement Symposium (Sorak, Korea, July 2005) p. 5 (in Korean).
Roskovic R, Oslakovic IS, Radic J, Serdar M, Cement Concr. Compos., 33, 1020 (2011)
Stephan D, Mallmann R, Knofel D, Hardtl R, Cement Concr. Res., 29, 1949 (1999)
Stephan D, Maleki H, Knofel D, Eber B, Hardtl R, Cement Concr. Res., 29, 545 (1999)
Sinyoung S, Songsiriritthigul P, Asavapisit S, Kajitvichyanukul P, J. Hazard. Mater., 191(1-3), 296 (2011)

[1] Yum GC, Lee SK, Rho JS, J. Kor. Inst. Resources Recycling, 6(4), 17 (1997)

[2] Hong SS, Lee TH, Lim GG, Oh HK, Lee BH, J. Korean Ind. Eng. Chem., 10(5), 696 (1999)

[3] Svinning K, Datu KA, in Proceedings of the 11th International Congress on the Chemistry of Cement (Durban, South Africa, May 2003) Vol. 2, p. 1080. (2003)

[4] Wang S, Vipulanandan C, Cement Concr. Res., 30, 385 (2000)

[5] Eckert Jr JO, Guo Q, J. Hazard. Mater., 59, 55 (1998)

[6] Potgieter SS, Panichev N, Potgieter JH, Panicheva S, Cement Concr. Res., 33, 1589 (2003)

[7] Lee JH, Chu YS, Song H, Lee JK, Korean J. Mater. Res., 20(4), 181 (2010)

[8] Hanehara S, Yamaguich O, World Cement, March, 23 (2006)

[9] Kolovos K, Tsivilis S, Kakali G, Cement Concr. Compos., 27, 163 (2005)

[10] Jain N, Garg M, Construct. Build. Mater., 22, 1851 (2008)

[11] Lee SH, in Proceedings of the Korean Ceramic Society;Cement Symposium (Sorak, Korea, July 2005) p. 5 (in Korean).

[12] Roskovic R, Oslakovic IS, Radic J, Serdar M, Cement Concr. Compos., 33, 1020 (2011)

[13] Stephan D, Mallmann R, Knofel D, Hardtl R, Cement Concr. Res., 29, 1949 (1999)

[14] Stephan D, Maleki H, Knofel D, Eber B, Hardtl R, Cement Concr. Res., 29, 545 (1999)

[15] Sinyoung S, Songsiriritthigul P, Asavapisit S, Kajitvichyanukul P, J. Hazard. Mater., 191(1-3), 296 (2011)