Evaluation of steel furnace slags as cement additives

Tüfekçi, M. Mansur; Demırbas, Ayhan; Genç, Hasan

doi:10.1016/s0008-8846(97)00158-0

Cited by 85 publications

(28 citation statements)

References 12 publications

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“…Approximately 160 kg of steel slag is generated per ton of steel produced [2]. e common chemical compounds in steel slag are SiO 2 , CaO, Fe 2 O 3 , Al 2 O 3 , and MnO [3,4]. e major mineral components of steel slag are C 3 S, C 2 S, C 4 AF, RO phase, and free-CaO [5,6].…”

Section: Introductionmentioning

confidence: 99%

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Liu

Guo

2018

Advances in Civil Engineering

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e applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture surface. e results show that the fluidity of the paste containing steel slag is higher. e nonevaporable water content of the hardened paste containing steel slag powder is close to that of the control sample at late ages. Both steel slag powder and steel slag aggregate react and connect tightly to gels and hardened paste, respectively. When the cement replacement ratio is no more than 10%, the proportion of pores larger than 50 nm in the hardened paste containing steel slag powder is close to that of the control sample, and the UHPC containing steel slag powder can display satisfactory compressive strengths. e UHPC containing steel slag aggregate demonstrates higher compressive strengths.

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Section: Introductionmentioning

confidence: 99%

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Liu

Guo

2018

Advances in Civil Engineering

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“…Ettringite is often associated to deleterious dimensional changes under certain conditions of temperature, permeability and humidity [22]; however, its presence is not necessarily associated to deleterious processes when formed during the initial stages and contributes to the initial strength [23], as is also reported for supersulphated cements [19]. Fig.…”

Section: Resultsmentioning

confidence: 83%

Hemihydrate or waste anhydrite in composite binders with blast-furnace slag: Hydration products, microstructures and dimensional stability

Magallanes-Rivera¹,

Escalante-Garcı́a²

2014

Construction and Building Materials

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“…For example, consider the recycling of slag, which is generated during the separation of molten steel from impurities inside steelmaking. A study concluded that steel making by-products can be utilized along with limestone aggregates without substantially reducing the concrete's compressive strength, and that the water requirements for the steel slag-containing mixes require comparable amounts of water [10]. Another analysis showed that the use of steel slag aggregates along with limestone results in a concrete of superior mechanical performance [11].…”

Section: Encourage Recyclingmentioning

confidence: 99%

Utilization of Virtual Globes for Open Source Industrial Symbiosis

Doyle¹,

Pearce²

2009

TOENVIRSJ

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Several proprietary industrial symbiosis software tools have been developed, however, without long term financial commitments these endeavors fall short of creating generalizable and sustainable tools. The recent development of virtual globes such as Google Earth (GE), an information service that provides imagery and three dimensional data depicting the entire physical earth, provides an opportunity to use a new sustainable method of navigating information to save energy and use materials more efficiently in the real world. To test this open source methodology, a data set was used from the Department of Environmental Protection in Pennsylvania, which has mandated reporting the location of disposal and type of residual waste from sources producing more than one ton per month. This data set was integrated into the GE interface to identify and quantify opportunities for materials and energy efficiency improvements. This investigation found that virtual globes coupled with open source waste information can be used to: 1) reduce embodied transport energy by reducing distances to recycling facilities, 2) choose end of life at recycling facilities rather than landfills, and 3) establish industrial symbiosis and eco-industrial parks on known by-product synergies. For one waste category, a potential 70% reduction in ton-kilometers was identified by simply observing closer disposal locations than currently utilized; similar reductions are achievable in other categories. It is concluded that the open source sharing of information in virtual globes provide a means to identify economically and environmentally beneficial opportunities for waste management if the data have been made available.

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Evaluation of steel furnace slags as cement additives

Cited by 85 publications

References 12 publications

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Hemihydrate or waste anhydrite in composite binders with blast-furnace slag: Hydration products, microstructures and dimensional stability

Utilization of Virtual Globes for Open Source Industrial Symbiosis

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