Technical papers and
papers in international conference proceedings

Donguk CHOI, Batzaya BAASANKHUU, Sangsu HA, BEHAVIOR OF AXIALLY LOADED CONCRETE CYLINDER WRAPPED BY DUCTILE PEN FRP AND DURABILITY OF PEN FIBERS, fib Symposium, 2019, 5., Krakow, Poland.

Gombosuren CHINZORIGT, Donguk CHOI, Odontuya ENKHBOLD, and Batzaya BAASANKHUU, Myung Kwan LIM, Hee Seob LIM, Strength, shrinkage and creep of concrete including CO 2 treated recycled coarse aggregate, Journal of Asian Concrete Federation, Vol. 4, No. 2, 2018, pp. 89-102.

Donguk CHOI, Batzaya BAASANKHUU, and Sang-Su HA, Confinement Effect of Concrete by Basalt Fiber and PEN, ACF 2018, 2018. 11., Fuzhou, China.

Donguk CHOI, Gombosuren CHINZORIGT, Myung Kwan LIM, Hee Seob LIM, Odontuya ENKHBOLD, and Batzaya BAASANKHUU, "Long-term Behaviour of Recycled Aggregate Concrete with and without Carbonation Treatment," ACF 2018, 2018. 11., Fuzhou, China.

Myung Kwan Lim and Dong Uk Choi, Basic Physical and Thermal Properties of PCM-Light-Weight Concrete, International Journal of Applied Engineering Research ISSN 0973-4562 Vol. 12, No. 11, 2017, pp. 2738-2744.

Keun-Hyeok Yang, Sung-Ho Tae, and Dong-Uk Choi, "Mixture Proportioning Approach for Low-CO 2 Concrete Using Supplementary Cementitious Materials," ACI Materials Journal, Vol. 113, No. 4, July-August 2016, pp. 533-542.

P. Sulontasukkul, P. Chindaprasirt, D. CHOI, and K. Sakai, "Effect of Phase Change Material on Temperature Shifting of Concrete, ICCS16, 2016. 6., Madrid, Spain.

Donguk CHOI, "Green Concrete specification and environmental declarations of concrete," ICCS16, 2016. 6., Madrid, Spain.

Donguk CHOI, "Green Concrete Specification by KCI and Sustainability in Infrastructural Development,"" MCA annual conference, 2016. 6., Ulaanbaatar, Mongolia.

Donguk Choi, Myung-Kwan Lim, and Sang-Su Ha, "Use of ductile fibers for seismic retrofit of RC columns," ACECON, 2015. 10., Kolkata, India.

Donguk Choi, S. Vachirapanyakun, S.-Y. Kim, and S.-S. Ha, "Ductile fiber wrapping for seismic retrofit of reinforced concrete columns," Journal of Asian Concrete Federation, Vol. 1, No. 1, Sep. 2015, pp. 37-46.

Donguk Choi, Myung-Kwan Lim, Sorrasak Vachirapanyakun, and So-Young Kim, "Use of fibers with large fracture strain and low elastic modulus for flexural strengthening of RC beams," ASEM15, 2015. 8., Seoul, Korea.

Keun-Hyeok Yang, Eun-A Seo, and Dong-Uk Choi, "Effect of Fly Ash on Life-Cycle CO 2 Assessment of Concrete Structures, Applied Mechanics and Materials, Vol. 692, Sep. 2014, pp. 475-481.

Sorrasak Vachirapanyakun, Min Su Jo and Dong-Uk Choi, "USE OF DUCTLE FIBERS FOR FLEXURAL STRENGTHENING OF REINFORCED CONCRETE BEAMS,? The 6 th International Conference of Asian Concrete Federation, 2014. 9., Seoul, Korea.

Dong-Uk Choi, Geonho Hong, Cheolwoo Park, Hyun-Bo Shim and Keun-Hyeik Yang, "Green concrete specification and sustainable technologies," ICI Journal, Vol. 88, No. 10, Oct. 2014, pp. 24-32.

Thomas H. K. Kang, Woosuk KIM, Sang-Su Ha, and Dong-Uk Choi, "Hybrid Effects of Carbon-Glass FRP Sheets in Combination with or without Concrete Beams," IJCSM, Korea Concrete Institute, Vol. 8, No. 1, Mar. 2014, pp. 27-41.

Donguk CHOI, "Labels and declarations for concrete," International Symposium on advancement of cement industry, 2013. 12., Seoul, Korea.

D.-U. CHOI, C.-U. CHAE, D.-H. LEE, and K.-H.YANG, "Technological Aspects of Construction and Demolition Waste Management," ICI-CPWD International Workshop on C&D Waste Recycling, 2013. 8., Chennai, India.

Dong-Uk CHOI, "Concrete and Environment - a Korean Perspective," MCA annual conference, 2013. 6., Ulaanbaatar, Mongolia.

Dong-Uk CHOI and Seung-Heun LEE, "Low Carbon Green Growth and Sustainable Concrete Technologies in Korea,? ICCS13, 2013. 5., Tokyo, Japan.

Dong-Uk Choi, "Concrete and Environment - a Korean Perspective," ICI Journal, Vol. 13, No. 1, April-June 2012, pp. 21-27.

Sang-Su Ha; Dong-Uk Choi; Thomas H.-K. Kang; and Chin Yong Lee, "Shear Strengthening of RC Beams Using Hybridized FRP Composite," The Third Asai-Pacific Conference on FRP in Structures, APFIS 2012, 2012. 2., Sapporo, Japan.

Dong-Uk Choi, Sung-Chul Chun, and Sang-Su Ha, "Bond strength of glass fibre-reinforced polymer bars in unconfined concrete," Engineering Structures, Vol. 34, No. 1, Jan., 2012, pp. 303-313.

Donguk-Uk Choi, "Environmental Design, Specification and Standards for Sustainable Concrete Industry," The 8th International Symposium on Advancement of Cement and Concrete Industries, 2011. 9., Seoul, Korea.

Donguk Choi; Sangsu Ha; and Thomas Kang, "Tensile Behavior of Carbon Fibre-Glass Fibre Hybridized Composites," fib Symposium, 2011. 6., Prague, Czech.

Dong-Uk Choi, Thomas H.-K. Kang, Sang-Su Ha, Kil-Hee Kim, and Woosuk Kim, "Flexural and Bond Behaviour of Concrete Beams Strengthened with Hybrid Carbon-Glass Fiber-Reinforced Polymer Sheets," ACI Structural Journal, Vol. 108, No. 1, Jan-Feb. 2011, pp. 90-98.

Dong-Uk Choi; Sang-Su Ha; and Chin-Yong Lee, "Use of CF-GF Hybridized Composite to Strengthen RC Flexural Members," 4th ACF International Conference, 2010. 11., Taipei, Taiwan.

D.-U. Choi; S.-H. Lee; J.-S. Jung; D.-H. Lee; and C.-U. Chae, "Technologies for Reduction of Carbon Footprint from Concrete Industry in Korea," 2010 TCI-JCI-KCI Symposium, 2010. 11., Taipei, Taiwan.

Thomas H.-K. Kang; Sang-Su Ha; and Dong-Uk Choi, "Bar Pullout Tests and Seismic Tests of Small-Headed Bars in Beam-Column Joints," ACI Structural Journal, V. 107, No. 1, Jan.-Feb. 2010, U.S.A., pp. 32-42.

Dong-Uk Choi, "Status of Sustainable Concrete Technology in Korea," Symposium on Sustainable Concrete and Cement Technologies, 2009. 12., Auckland, New Zealand.

Dong-Uk Choi; Sang-Su Ha; and Kil-Hee Kim, "Use of Uni-Axial Pseudo-Ductile Hybrid FRP Sheet to Strengthen Existing Reinforced Concrete Flexural Members," Asia-Pacific Conference on FRP in Structures, APFIS 2009, 2009. 12., Seoul, Korea.

Dong-Uk Choi; Chang-Ho Lee; Young-Ho Kim; Jun-Seo Park; Beam-Seok Ta;, Man-Young Chun; Kyung-Sub Kim; Sei-Yong Nam, "An Inter-Departmental Educational Curricular for Low Carbon and Green Growth and Green Industrial Complex," ICEE & ICEER 2009 Korea (International Conference on Engineering Education and Research), 2009. 8, Seoul, Korea.

Choi, Dong-Uk; Ha, Sang-Su; Chun, Sung-Chul; Park, Young-Hwan; and You, Young-Chan, "Splice Length of GFRP Bars in Reinforced Concrete Slabs," The 3rd ACF International Conference, ACF/VCA-2008 on Sustainable Concrete Technology and Structures in Local Climate and Environmental Conditions, 2008. 11., Ho Chi Minh City, Vietnam.

Kang, Thomas H.-K.; Ha, Sang-Su; and Choi, Dong-Uk, "Seismic Assessment of Beam-to-Column Interaction Utilizing Headed Bars," The 14th World Conference on Earthquake Engineering, 2008. 10., Beijing, China.

Choi, Dong-Uk; Ha, Sang-Su; and Chun Sung-Chul "Bond Stresses in Lap-Spliced RC Beams Using GFRP Bars: Unconfined Splice Test," 12th International Congress on Polymers in Concrete, 2007. 9., ChunCheon, Korea.

Dong-Uk Choi; N. J. Delatte; D. W. Fowler; and J. O. Jirsa "Use of Shear Connectors to Improve Bond in Concrete Overlays," International Society of Concrete Pavements, International Journal of Concrete Pavements (IJCP on Web), Vol. 1, No. 1, U.S.A., 2005. 12., pp. 33-47.

Choi, Oan-Chul; Seo Dong-Min; Choi, Dong-Uk; Hong, Ki-Suop; and Hong, Keon-Ho "Decreasing Bearing Angle Model to Analyze Wedging Action of Reinforcing Bars to Concrete," Proceedings of the First International Conference of Asian Concrete Federation, 2004. 10., Chiang Mai, Thailand.

Choi, Dong-Uk; and Lee, Chin-Yong "Anchor Design to Prevent Failures in Repaired Concrete Members Subjected to Thermal Changes," 4th Asia Symposium on Polymers in Concrete, 2003. 5., Chuncheon, Korea.

Fowler, D. W.; Choi, Dong-Uk; and Zalatimo, J. "Stresses in PC Overlays due to Thermal Changes," 5th International Coloquium on Industrial Floors '03, 2003. 1., Esslingen, Germany, pp. 29-36.

Fowler, D. W.; Choi, Dong-Uk; Zalatimo, J.; and Wheat, D. L. "Stresses in PC Overlays due to Thermal Changes," ICPIC, 10th International Congress on Polymers in Concrete, Hawaii, 2001. 5., U.S.A.

Choi, Dong-Uk; Fowler, D. W.; and Wheat, D. L. "Thermally-Induced Interface Stresses in Polymer Concrete-Portland Cement Concrete Composite Beams," ISAP99, International Colloquium on Adhesion between Polymers and Concrete, 1999. 9., Dresden, Germany.

Choi, Dong-Uk; Fowler D. W.; and Jirsa J. O. "Interface Shear Strength of Concrete at Early Ages," American Concrete Institute, ACI Structural Journal, Vol. 96, No. 3, May-Jun. 1999, U.S.A., pp. 343-347.

Choi, Dong-Uk; Jirsa, J. O.; and Fowler, D. W. "Shear Transfer across Interface between New and Existing Concretes Using Large Powder-Driven Nails," American Concrete Institute, ACI Structural Journal, Vol. 96, No. 2, Mar.-Apr. 1999, U.S.A., pp. 183-192.

Choi, Dong-Uk; Fowler, D. W.; Jirsa, J. O.; and Delatte, N. J. "Use of Shear Connectors to Improve Bond in Concrete Overlays," Fourth CANMET/ACI International Conference on Durability of Concrete, 1997. 8., Sidney, Australia.

Choi, Dong-Uk; Fowler, D. W.; and Wheat, D. L. "Thermal Stresses in Polymer Concrete Overlays," American Concrete Institute, Special Publication SP-166, Properties and Uses of Polymers in Concrete, 1996. 11., U.S.A., pp. 93-122.

Choi, Dong-Uk; Fowler, D. W.; and Jirsa, J. O. "Use of Large Powder-Driven Nails to Improve Bond Strength of Concrete in Bonded Concrete Overlays," A Research-to- Practice Symposium on Repair and Rehabilitation of Bridges and Pavements, 1996. 5., Rhode Island, U.S.A.