Browse > Article
http://dx.doi.org/10.5345/JKIBC.2014.14.3.252

Effect of Calcium Sulfate Dihydrate (Gypsum) on the Fundamental Properties of Slag-based Mortar  

Baek, Byung Hoon (Department of Architectural Engineering, Semyung University)
Han, Cheon Goo (Department of Architectural Engineering, Cheong ju University)
Publication Information
Journal of the Korea Institute of Building Construction / v.14, no.3, 2014 , pp. 252-258 More about this Journal
Abstract
With the vision of 'a low carbon green develop' various industrial by-products were used as replacement of cement, in order to reduce $CO_2$ emissions from the manufacturing process of cement. Blast furnace slag is one of the industrial by-products. Due to the similar chemical compositions to ordinary Portland cement, blast furnace slag have been widely used in concrete with minimum side effects. Hence, in recent years, alkali activated slag-based composites are extensively studied by many researchers. However, the alkali activator can cause a number of problems in practice. Therefore, in this study, an alternative way of activating the slag was investigated. To activate the slag without using an alkali activator, calcium sulfate dihydrate was chosen and mixed with natural recycled fine aggregate. Fundamental properties of the slag-based mortar were tested to evaluate the effect of calcium sulfate dihydrate.
Keywords
calcium sulfate dihydrate; zero cement mortar; recycled aggregate; blast furnace slag powder;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kim DG, Development of zero-cement brick using blast furnace slag powder, recycled fine aggregates and functional fine particle [Dissertation]. [Choonju (Korea)]: Cheongju university; 2012. 200p.
2 Park KT, Effect of Mix Proportions on the Properties of Blast Furnace Slag Mortar Using the Recycled Fine Aggregates. Journal of the Korean Recycled Construction Resources Institute. 2010 May;2(1):47-50.
3 Shim JW, A Study on the Strength Property of Recycled Fine Aggregate (Wet Type) Mortar with Blast Furnace Slag. Korea institute for Structural Maintenance Inspection. 2006 Oct;1(5): 153-9.
4 Son SH, Development of Zero-Cement Mortar Using Reactivity of Recycled Fine Aggregates and Mineral Admixtures [Dissertation]. [Choonju (Korea)]: Cheongju university; 2012. 159p.
5 Park KT, Hydration Reaction Mechanism of the Recycled Aggregate and Blast Furnace Slag Powder. Journal of the Korean Recycled Construction Resources Institute. 2010 May;2(1):37-40.
6 Han DY, A Study on the Properties of Non-Sintered Mortar with Industrial Waste used. Architectural Institute of Korea. 2011 Oct;31(2): 345-46.
7 Park HE, Hydration of non-cement CaO-activated slag with various gypsum contents. Proceedings of the Korea Concrete Institute. 2013 Oct;25(2):301-2.