Ladle Furnace Slag as a Sustainable Binder for Masonry Mortars

Shih Yin Chang; Chao Shi Chen; Chia Huei Tu; Ya Wen Tseng

doi:10.4028/www.scientific.net/KEM.801.385

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Ladle Furnace Slag as a Sustainable Binder for Masonry Mortars
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 801Ladle Furnace Slag as a Sustainable Binder for...

Ladle Furnace Slag as a Sustainable Binder for Masonry Mortars

Abstract:

Nowadays, the environmental aspect of industrial waste management has got urgent. The reusing of these residues in the civil building is increasing, since all industries have developed a growing concern for the emptying of natural resources. The ladle furnace slag (LDF-slag), a by-product of the secondary refining of steel, is mainly composed of calcium and calcium magnesium silicates. It has the potential to be a sustainable binder for mortars because the composition of LDF-slag is fairly similar to Portland cement (PC) clinker. Thus, this paper aims to improve the cementitious properties of LDF slag. The properties of cement mortars with LDF-slag were investigated including water demand of normal consistency, setting time and compressive strength. The experimental results show that the suitable specific surface area of LDF-slag is 1200 cm²/g (cement replacement amount is 20 wt%) and addition of LDF-slag with different fineness has retarding effect on cement.

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Composite Materials and Material Engineering III

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Periodical:

Key Engineering Materials (Volume 801)

Pages:

385-390

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.801.385

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Online since:

May 2019

Authors:

Shih Yin Chang*, Chao Shi Chen, Chia Huei Tu, Ya Wen Tseng

Keywords:

Cementitious Properties, Ladle Furnace Slag (LDF-Slag), Specific Surface Area

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* - Corresponding Author

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