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Durability of Alkali-Activated Blast Furnace Slag Concrete: Chloride Ions Diffusion
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 Title & Authors
Durability of Alkali-Activated Blast Furnace Slag Concrete: Chloride Ions Diffusion
Nam, Hong Ki; Kyu, Park Jae; San, Jung Kyu; Hun, Han Sang; Hyun, Kim Jae;
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 Abstract
The aim of the present study is to investigate some characteristics of concrete according to addition of blast furnace slag and alkali-activator dosages. Blast furnace slag was used at 30%, 50% replacement by weight of cement, and liquid sulfur having NaOH additives was chosen as the alkaline activator. In order to evaluate characteristics of blast furnace slag concrete with sulfur alkali activators, compressive strength test, total porosity, chloride ions diffusion coefficient test were performed. The early-compressive strength characteristics of blast furnace slag concrete using a sulufr-alkali activators was compared with those of reference concrete and added 30, 50% blast furnace slag concrete. Also, Blast furnace slag concrete using sulfur-alkali activators enhanced the total porosity, chloride ions diffusion coefficient than two standard concrete. Alkali-activated blast furnace slag concrete was related to total porosity, compressive strength and chloride ions diffusion coefficient each others. As a result, it should be noted that the sulfur-alkali activators can not only solve the demerit of blast furnace slag concrete but also offer the chloride resistance of blast furnace slag concrete using sulfur alkali activators to normal concrete.
 Keywords
chloride ions diffusion coefficient;total porosity;alkali-activator;blast furnace slag;concrete;
 Language
Korean
 Cited by
1.
Influence of Air Void Characteristic on Chloride Diffusion Coefficient and Compressive Strength of Concrete using Urea and Sulfur, Journal of the Korean Society of Safety, 2016, 31, 4, 75  crossref(new windwow)
2.
Long-Term Durability Estimation of Cementless Concrete Based on Alkali Activated Slag, Journal of the Korean Recycled Construction Resources Institute, 2016, 4, 2, 149  crossref(new windwow)
3.
Influence on Compressive Strength and Drying Shrinkage of Concrete with Urea-Water Soluble Sulfur Admixture, Journal of the Korean Society of Safety, 2016, 31, 5, 74  crossref(new windwow)
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