Tri N.M. Nguyen, Nam-Hyoung Lim, Yun-Suk Kang, and Jung J. Kim
International Journal of Railway, vol. 11, no. 1, pp.10-14, 2018

Abstract : The objective of this study is to investigate the effect of latex polymer on the impact resistance of hardened cement pastes. The specimens for cement pastes having water to cement ratio of 0.5 were prepared. For the specimens of latex modified cement pastes, the mixture proportions of latex modified cement pastes were prepared to have the comparable compressive strength with the plain pastes having water to cement ratio of 0.5. Both specimens were cured in water for 28 days. The impact resistances were obtained by the digital equipped Charpy impact instrument. The observation shows that the impact resistance obtained from the hardened cement pastes including latex polymer is higher than those without polymer. The feasibility of using polymer as an admixture to enhance the impact strength of cement pastes as well as concrete is clarified.

Keyword : Track, cement, Impact resistance, latex polymer, Charpy impact test.