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http://dx.doi.org/10.5345/JKIBC.2014.14.2.170

Stress-Strain Relationship of Alkali-Activated Hwangtoh Concrete under Chemical Attack  

Mun, Ju-Hyun (Department of Architectural Engineering, Kyonggi University Graduate School)
Yang, Keun-Hyeok (Department of Plant.Architectural Engineering, Kyonggi University)
Publication Information
Journal of the Korea Institute of Building Construction / v.14, no.2, 2014 , pp. 170-176 More about this Journal
Abstract
This study examined the effect of chemical attack on the stress-strain relationship of alkali-activated Hwangtoh concrete. Water-to-binder ratio and air content were selected as mixture parameters. The stress-strain relationship of concrete was measured at chemical immersion times of 0, 7, 28, 56, and 91 days from an age of 28 days. Based on the test results, the reduction in compressive strength of alkali-activated hwangtoh concrete owing to chemical attack was formulated. In sddition the present study demonstrated that the stress-strain behavior of concrete under chemical attack is significantly dependent on the air content and chemical immersion time, indicating the rate of decrease of modulus of elasticity was greater than that of compressive strength at the same immersion time. As a result, the stress-strain behavior of concrete under chemical attack was significantly inconsistent with the conventional models specified in the CEB-FIP provision.
Keywords
chemical attack; stress-strain relationship; alkali-activated hwangtoh concrete; reduced compressive strength;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Ministry of Land, Transport and Maritime Affairs. Concrete Standard Specification. Korea Concrete Institute; 2009. 360p.
2 Hwang HZ. A Study on the Method Activating Kaolin and Mortar & Concrete Mixed with Active Kaolin [Ph. D. Thesis]. [Seoul (Korea)]. Seoul National University; 1997. 94 p.
3 Hwang HZ, Lee JK, Yang JH. An Experimental Study for Basic Properties of Hwangto Binder. Journal of Architectural Institute of Korea. 2008 January;24(1):79-86.   과학기술학회마을
4 Yang KH, Hwang HZ, Song JG. Development of a Cementless Mortar using Hwangtoh Binder. Building and Environment. 2007 October;42(10):3717-25.   DOI   ScienceOn
5 Yang KH, Hwang HZ, Lee S. Effects of Water-Binder Ratio and Fine Aggregate-Total Aggregate Ratio on the Properties of Hwangtoh-Based Alkali-Activated Concrete. Journal of Materials in Civil Engineering, ASCE. 2010 February;22(9):887-96.   DOI   ScienceOn
6 CEB-FIP Model Code 1990, Structural Concrete: Textbook on Behaviour, Design and Performance. Switzerland: International Federation for Structural Concrete(Fib); 1999. 224p.
7 Japanese Standards Association. JIS K 8180: Hydrochloric acid. JSA; 2006. 12p.
8 Japanese Standards Association. JIS K 8951: Sulfuric acid. JSA; 2006. 12p.
9 Korea Industrial Standard. KS F 2405 Standard Test Method for Compressive Strength of Concrete. Korean Standards Information Center; 2010. 16p.
10 ASTM. C 469 Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression. ASTM International: West Conshohocken, Pennsylvania; 2010. 5p.