Results 231 to 240 of about 1,271,850 (301)

Iron and Steel Slags

2017
Nowadays, iron and steel industries are moving toward environmental sustainability through careful control of greenhouse gas emissions and appropriate management of iron/steel manufacturing residues generated. Application of fresh iron and steel slags as an alternative to standard materials has been known for a number of years around the world.
Pen-Chi Chiang, Shu-Yuan Pan
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The Influence of Steel Slag on Phosphorous Slag Cement

Key Engineering Materials, 2012
In this paper, the influence of steel slag and its pretreatment method on properties of phosphorus slag cement has been studied. The hydration process and microstructure were studied by X-ray diffraction (XRD) and scanning electronic microscopy (SEM).
Qian Zhao, You Wu
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A review of steel slag as a substitute for natural aggregate applied to cement concrete

International Journal on Road Materials and Pavement Design, 2022
Steel slag is the main by-product of steelmaking, and its stacking and burying cause serious pollution to soil and water. Meanwhile, the exploitation of gravel is restricted with the implementation of ecological environment protection, resulting in the ...
Zhennan Li, A. Shen, Xuerui Yang, Yinchuan Guo, Yiwei Liu   +4 more
semanticscholar   +1 more source

Portuguese steel slags. A new geomaterial

2009
The engineering properties of Portuguese processed steel slags (ISACs) are tested to evaluate the appropriateness of their use in transportation infrastructures and geotechnical works. The laboratory results are compared with values specified in the Portuguese standards for natural aggregates and with values found for natural aggregates of various ...
Correia, A. Gomes, Ferreira, Sandra Reis, Roque, António José, Cavalheiro, António   +3 more
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Influence of ocean alkalinity enhancement with olivine or steel slag on a coastal plankton community in Tasmania

Biogeosciences
. Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through the acceleration of chemical rock weathering.
Jiaying A. Guo, R. Strzepek, K. Swadling, Ashley T. Townsend, Lennart T. Bach   +4 more
semanticscholar   +1 more source

Pelletizing steel mill desulfurization slag

International Journal of Mineral Processing, 2002
Abstract Hot metal desulfurization slag is a high-metallic iron content slag produced at a typical steelmaking facility and is currently considered waste. Each year, 50,000 tons of this slag is produced at one particular steelmaking plant. This material can be beneficiated so that it can be utilized as blast furnace feed, but it is necessary to first
S.Komar Kawatra, S.Jayson Ripke
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Activity index for steel slag

Magazine of Concrete Research, 2011
Currently, most steel slag is used as aggregate for concrete, asphaltic paving and road bases. High-alkalinity steel slag shows certain cementitious properties and should be given priority to be used as a supplementary cementitious material in concrete, based on economical and environmental considerations.
Wang Qiang, Yan Peiyu, Han Song
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Carbonation of steel slag at low CO2 concentrations: Novel biochar cold-bonded steel slag artificial aggregates

Science of The Total Environment, 2023
Carbonation technology resolves the volume expansion of steel slag by combining CO2 with f-CaO, but the previous stringent carbonation conditions (99%vol) significantly limit the application prospect of steel slag. To achieve the carbonation of steel slag at lower CO2 concentrations, a novel cold-bonded artificial aggregates (CASSAs) based on steel ...
Jun, Liu, Canrong, Zeng, Zhenlin, Li, Guang, Liu, Weizhuo, Zhang, Guangming, Xie, Feng, Xing   +6 more
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Alkali-Activated Controlled Low-Strength Material Utilizing High-Calcium Fly Ash and Steel Slag for Use as Pavement Materials

, 2021
This study investigated the performance of alkali-activated, cement-based controlled low-strength materials (CLSMs).
T. Chompoorat, Thanakit Thepumong, Peem Nuaklong, P. Jongvivatsakul, S. Likitlersuang   +4 more
semanticscholar   +1 more source

Slag, steel and greenhouse gases

Revue de Métallurgie, 2002
A steel mill is a logistical hub, where iron units, by-products and effluents such as CO 2 compete in terms of volume. The problematics of greenhouse gas emissions will probably strengthen these transversal relationships. For example, blast furnace slag, which is a prime secondary material for the cement industry, substitutes for CO 2 intensive raw ...
J.-P. Birat, J.-M. Delbecq, E. Hess, D. Huin   +3 more
openaire   +1 more source