Browse > Article
http://dx.doi.org/10.14190/JRCR.2014.2.2.093

A Fundamental Study for Development of Corrosion Inhibitor Repair Mortar  

Jung, Jae-Eun (Department of Architectural Engineering, Kyonggi University Graduate School)
Yang, Keun-Hyeok (Department of Plant.Architectural Engineering, Kyonggi University)
Go, Jeung-Wan (4M Co., LTD.)
Yun, In-Gu (GL tech Co., LTD.)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.2, no.2, 2014 , pp. 93-99 More about this Journal
Abstract
The present study prepared 13 mixes to examine fundamental mixture proportions of corrosion inhibitor repair mortars. The mortar mixes were classified into three groups according to the selected test variables which are the substitution level of polymer for Group 1, ground granulated blast-furnace slag (GGBS) and fly ash (FA) for Group 2, and corrosion inhibitor for Group 3. Based on the test results, the optimum substitution levels of GGBS and FA could be recommended as 10% and 20%, respectively, though 1-day strength of mortar significantly decreased with their substitution. Furthermore, the appropriate substitution level of corrosion inhibitor was considered to be less than 1.5%. The flexural strength of mortar tested was higher than the predictions obtained from ACI 318-11 equation. The shrinkage strain of mortar was also conservative after an age of around 10 days compared with the predictions of ACI 209.
Keywords
Polymer; Repair Mortar; Ground granulated blast-furnace slag; Fly ash; Corrosion inhibitor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Ramachandran, V.S. Concrete Admixture Handbook. Insitute for Research in Construction, Canada, 558-938.
2 Song, B.C., Kim, K.K., Han, D.H. (2005). Development of Alkali Recovery Agents for Renovation of Deteriorated RC Structures, Journal of The Korea Institute for Structural Maintenance and Inspection, 9(5), 20-28 [in Korean].
3 Kardon, J.B. (1997). Polymer-Modified Concrete, Journal of Materials in Civil Engineering, 85-92.
4 ACI 209R-92. (1994). Prediction of Creep, Shrinkage, and Temperature Effects in Concrete Structures Practice Part 1: Materials and General Properties of Concrete, America Concrete Institute.
5 ACI Committee 318-11. (2011). Building Code Requirement for Structural Concrete (ACI 318-11) and Commentary (ACI 318R-11), American Concrete Institute.
6 Jo, Y.K., Jeong, S.H., Jang, D.B. (2011). Strength of Rapidly Handening SBR Cement Martars as Building Construction Materials According to Admixture Types and Curing Conditions, Journal of the Korea Institute of Building Construction, 11(6), 587-596 [in Korean].   DOI   ScienceOn
7 Koh, K.T., Park, J.J., Kim, S.W., Lee, J.H. (2002). Prediction Model on Autogenous Shrinkage of High Performance Concrete Incorporating Mineral Admixtures, Korean Society of Civil Engineering, 23(6A), 1133-1141 [in Korean].
8 Korea Concrete Institute, (1996). Concrete Admixture, Korea Concrete Institute.
9 KS L 5109, KS F 5111, KS F 2408, KS F 2534 (2006). Korean Industrial Standard: Testing Concrete, Korea Industrial Standards.
10 Ohama, Y. (1994). Handbook of Polymer-Modified Concretes and Mortars, Noyes Publication, New Jersey, 45-86.