Hydration characteristics of Portland cement – Electric arc furnace slag blends

Hekal, Eisa E.; Abo-El-Enein, S.A.; El-Korashy, Sabry A.; Megahed, G. M.; El-Sayed, T. M.

doi:10.1016/j.hbrcj.2013.05.006

Cited by 48 publications

(18 citation statements)

References 12 publications

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“…The production of Portland cement in the cement industry not only consumes raw materials and large amounts of energy, but also as one of the primary industrial producers of carbon dioxide (CO 2 ), contributes to the greenhouse effect and causes acid rain. Actually, this industry generates greenhouse gases (GHGs) both directly through the emission of CO 2 when clinker is produced and also through the consumption of energy [1][2][3][4]. On the other hand, the severity of environmental regulations is enhanced progressively and has forced the industries to put in a great effort to reduce their pollutants [4].…”

Section: Introductionmentioning

confidence: 99%

“…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%

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Stochastic Modeling of Compressive Strength of Phosphorus Slag Content Cement

Allahverdi¹

2016

Ceramics - Silikaty

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stochastic Modeling of Compressive Strength of Phosphorus Slag Content Cement

Allahverdi¹

2016

Ceramics - Silikaty

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“…Several studies have been carried out to evaluate the effect of carbonation curing on the properties of blended cement and/or (Teir et al, 2007;Reddy et al, 2010;Sanna et al, 2012;Abo-El-Enein et al, 2013;Dri et al, 2013;Hekal et al, 2013;Muriithi et al, 2013;Santos et al, 2013a;Dri et al, 2014;Jo et al, 2014;Reynolds et al, 2014;Salman et al, 2014;Santos et al, 2014;Fujii et al, 2015;Ukwattage et al, 2015). concrete masonry (El-Hassan and Shao, 2015).…”

Section: Integrated Alkaline Wastes Treatment With Co 2 Fixation and mentioning

confidence: 99%

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

Ping

Pan

Pei

et al. 2016

Aerosol Air Qual. Res.

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This paper provides an overview of state-of-the-art carbon fixation and utilization technologies. Several carbon capture processes, such as chemical absorption and chemical looping, are reviewed and illustrated. In addition, various types of chemicals and fuels that can be produced using concentrated CO 2 (or other forms) through physical, chemical, or enhanced biological methods are presented. Among those carbon conversion methods, two promising approaches, i.e., microalgae ponds and accelerated carbonation using alkaline solid wastes, are reviewed in detail. Microalgae are fast-growing and ubiquitous photosynthetic organisms, which are rich in protein and can be converted to biodiesel fuel. They have been recognized as an alternative feedstock not only because they use CO 2 from the atmosphere but also due to their high lipid content per biomass compared to other plants. In this study, for the microalgae technologies, the principles and applications of open pond systems are discussed in terms of both technological and economic considerations. The important operation parameters affecting productivity of microalgae, including light intensity, temperature, mixing, CO 2 delivery, accumulation of dissolved oxygen, and salinity are summarized. On the other hand, accelerated carbonation technologies are an attractive and feasible approach to integrating alkaline solid waste treatment with CO 2 fixation and utilization. In this study, the performance of various carbonation processes is critically reviewed from the perspectives of process design, energy consumption, and environmental benefits. The carbonated solid product can also be used as supplementary cementitious materials in a blended cement or concrete block. Accordingly, the performance of cement pastes with carbonated product, in terms of workability and strength development, are evaluated from the cement chemistry point of view. Cement manufacturing is an energy and material intensive process, with high annual production. It is noted that, through the accelerated carbonation process, significant indirect environmental benefits can be realized.

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“…The wastewater generated in the same industries also can be introduced for the carbonation process to avoid the use of freshwater resources. After carbonation, the slurry is separated into (Teir et al, 2007;Reddy et al, 2010;Sanna et al, 2012a;Abo-El-Enein et al, 2013;Dri et al, 2013;Hekal et al, 2013;Muriithi et al, 2013;Santos et al, 2013b, c;Dri et al, 2014;Jo et al, 2014;Reynolds et al, 2014;Salman et al, 2014;Santos et al, 2014;Ukwattage et al, 2014). carbonated solid wastes and liquid solution.…”

Section: Types Of Carbonation Processesmentioning

confidence: 99%

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

Pan

Chiang

Chang

et al. 2015

Aerosol Air Qual. Res.

101

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Carbon dioxide (CO 2 ) emission reduction in industry should be a portfolio option; for example, the carbon capture and utilization by mineralization (CCUM) process is a feasible and proven technology where both CO 2 capture and alkaline waste treatment occur simultaneously through an integrated approach. In this study, the challengeable barriers and significant breakthroughs of CCUM via ex-situ carbonation were reviewed from both theoretical and practical perspectives. Recent progress on the performance of various carbonation processes for different types of alkaline solid wastes was also evaluated based on CO 2 capture capacity and carbonation efficiency. Moreover, several process intensification concepts such as reactor integration and co-utilization with wastewater or brine solution were reviewed and summarized. In addition, the utilization of carbonated products from CCUM as green materials including cement, aggregate and precipitate calcium carbonate were investigated. Furthermore, the current status of worldwide CCUM demonstration projects within the ironand steelmaking industries was illustrated. The energy consumption and cost analyses of CCUM were also evaluated.

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Hydration characteristics of Portland cement – Electric arc furnace slag blends

Cited by 48 publications

References 12 publications

Stochastic Modeling of Compressive Strength of Phosphorus Slag Content Cement

Stochastic Modeling of Compressive Strength of Phosphorus Slag Content Cement

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

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