The Flexural Strength of Fiber-Reinforced Polymer Cement Mortars Using UM Resin

A polymer cement mortar (PCM) has been widely used  as the material of repair and restoration work for concrete structure;  however a PCM usually induces an environmental pollutant.  Therefore, there is a need to develop PCM which is less impact to 
environments. Usually, UM resin is known to be harmless to the  environment. Accordingly, in this paper, the properties of the PCM  using UM resin were studied. The general cement mortar and UM  resin were mixed in the specified ratio. A certain percentage of PVA  fibers, steel fibers and mixed fibers (PVA fiber and steel fiber) were  added to enhance the flexural strength. The flexural tests were  performed in order to investigate the flexural strength of each PCM.  Experimental results showed that the strength of proposed PCM using  UM resin is improved when they are compared with general cement  mortar.

• Min Ho Kwon
• Woo Young Jung
• Hyun Su Seo

• Polymer cement mortar (PCM)
• UM resin
• Compressive strength
• PVA fiber
• Steel fiber.

[1] Y. Ohama, "Durability performance of polymer-modified mortars”,
Durability of building materials and components. Second international
conference, gaithesburg, Sep. 14-16, 1981.
[2] Y. Ohama, "Handbook of Polymer-Modified Concrete and Mortar”,
Properties and Process Technology, Noyes Pub-lications, New Jersey, pp.
130-133, 1995.
[3] Y.S. Soh, H. S. Park, Y. K. Jo, and J. B. Lee, "An Experimental Study on
the Development of Polymer cements mortar”, Journal of Architectural
Institute of Korea, vol. 1, no. 4, pp. 241-248, 1991.
[4] Y. C. Kim, "Properties of Strength and Durability of Latex Modified
Concrete Using Fly-Ash”, Master’s Thesis, Chung-Ju National
University in Korea, 2006.
[5] K. Sekino, "A Study on the Characteristics and Mix Design of Ultra
Rapid-Hardening Polymer- Modified Cement Concrete”, Universities in
Japan Doctoral dissertation, pp. 28-41, 1996.
[6] V. S. Ramachandran, "Concrete admixtures handbook: properties,
science and technology”, William Andrew, 1996.
[7] S. Wang, and C. Li. Victor, "Polyvinyl alcohol fiber reinforced
engineered cementitious composites: material design and performances.”
Proc., Int’l Workshop on HPFRCC Structural Applications, Hawaii,
2005.