Mechanical activation of granulated blast furnace slag and its effect on the properties and structure of portland slag cement

Kumar, Sanjay; Kumar, Rakesh; Bandopadhyay, Amitava; Alex, T C; Kumar, B. Ravi; Das, Swapan K; Mehrotra, Shanta

doi:10.1016/j.cemconcomp.2008.05.005

Cited by 244 publications

(111 citation statements)

References 17 publications

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“…e reactivity of GGBFS is considered an important parameter to assess the effectiveness of GGBFS in concrete composites, which varies greatly with the source of slag, types of raw material used, methods of cooling, and the duration of milling [9]. Pal et al [10] investigated the relationship between the hydraulic index (HI) of slag and the influencing factors of slag, including glass content, fineness, and chemical composition.…”

Section: Introductionmentioning

confidence: 99%

Influences of Ultrafine Slag Slurry Prepared by Wet Ball Milling on the Properties of Concrete

Dai

et al. 2018

Advances in Materials Science and Engineering

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e application of ultrafine ground-granulated blast-furnace slag (GGBFS) in concrete becomes widely used for high performance and environmental sustainability. e form of ultrafine slag (UFS) used in concrete is powder for convenience of transport and store. Drying-grinding-drying processes are needed before the application for wet emission. is paper aims at exploring the performances of concrete blended with GGBFS in form of slurry. e ultrafine slag slurry (UFSS) was obtained by the process of grinding the original slag in a wet ball mill, which was mixed in concrete directly. e durations of grinding were 20 min, 40 min, and 60 min which were used to replace Portland cement with different percentages, namely, 20, 35, and 50, and were designed to compare cement with original slag concrete. e workability was investigated in terms of fluidity. Microstructure and pore structure were evaluated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and mercury intrusion porosimetry (MIP). e fluidity of concrete mixed with UFSS is deteriorated slightly. e microstructure and early strength were obviously improved with the grind duration extended.

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Section: Introductionmentioning

confidence: 99%

Influences of Ultrafine Slag Slurry Prepared by Wet Ball Milling on the Properties of Concrete

Dai

et al. 2018

Advances in Materials Science and Engineering

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“…One of the growing approaches for a reduction of air contamination and also obtaining technological, economic, and environmental benefits is the increasing usage of industrial by-products and wastes such as fly ash, silica fume, and different types of slags [1][2][3][4][5][6]. Among these industrial wastes, only slags such as blast furnace slag (BFS) [5,7,8], steel slag [9][10][11], and phosphorus slag (PHS) [1,[12][13][14][15] have latent cementing property and have attracted attention of many researches [5,11,16].…”

Section: Introductionmentioning

confidence: 99%

Stochastic Modeling of Compressive Strength of Phosphorus Slag Content Cement

Allahverdi¹

2016

Ceramics - Silikaty

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“…The retarded hydration occurs on hardened samples and, due to their small dimensions (100 mm), their expansion was not revealed by the investigation method followed in the present research. However, it can be expected that the addition of superfine slag to Portland cement improves the pore size distribution of the pastes and consequently the strength of the mortars because pore size and shape are crucial factors affecting their durability, as they influence penetration of liquids, vapors or gases into the matrix [32,33]. The time required for permeation falls between 180 and 360 days and depends on the preparation protocol followed rather than on materials composition.…”

Section: S250 S500 S1000 S2500 Rmentioning

confidence: 99%

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

et al. 2017

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This paper deals with the production of mortars prepared using a commercial CEMIIB-S 42.5N cement, a natural aggregate, steelmaking slag, a superplasticizer and water. The as-received unprocessed steel slag was milled by a hammer mill and then sieved to obtain batches with different maximum particle size. Each batch was used, together with the other components, in the production of mortars which were tested, by compression and water absorption, after different aging times in order to evaluate their long term stability. Several slag-free samples were also prepared as reference materials. All mortars were prepared with fixed aggregate/cement ratio (6/1), superplasticizer/cement ratio (s/c) and water/cement ratio (w/c). It has been demonstrated that an adequate protocol for the preparation and the use of slag containing particles with 2500 µm maximum size lead to the production of materials with mechanical properties suitable for civil engineering applications after aging for 28, 90 and 180 days. However, samples containing slag particles with size equal or greater than 1000 µm display a decay of mechanical properties after longer aging in water or after accelerated aging.

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Mechanical activation of granulated blast furnace slag and its effect on the properties and structure of portland slag cement

Cited by 244 publications

References 17 publications

Influences of Ultrafine Slag Slurry Prepared by Wet Ball Milling on the Properties of Concrete

Influences of Ultrafine Slag Slurry Prepared by Wet Ball Milling on the Properties of Concrete

Stochastic Modeling of Compressive Strength of Phosphorus Slag Content Cement

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

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