The present study evaluates the effect of utilising granulated blast furnace slag as a partial substitution of the fine fraction of natural aggregates on various concrete parameters using the general factorial approach. Two levels of the water/cement ratio (0.45 and 0.5) and four different percentages of granulated blast furnace slag (0, 20%, 40% …
WhatsApp: +86 18221755073The analysis results indicate that the incorporation of steel slag powder (SSP 3) may have adverse effects on the initial setting time, volume stability, compressive …
WhatsApp: +86 182217550731 1 Greening effect of slag cement-based concrete: environmental and 2 ecotoxicological impact 3 Julien Couvidat a, *, i, Cécile Diliberto a, Eric Meux b, Sylvie Cotelle c, Clement Bojic c, 4 Laurent Izoret d, André Lecomte a 5 a Université de Lorraine, CNRS, IJL, F-54000 Nancy, France 6 b Université de Lorraine, CNRS, IJL, F-57000 Metz, France
WhatsApp: +86 18221755073In particular, the utilization of slag cement has been identified as a highly efficient approach for mitigating the adverse effects across several categories. This …
WhatsApp: +86 18221755073The results emphasized that even 7-day wet curing was inadequate for high levels of slag replacement, and that continued exposure to a drying environment can have adverse effects on the long-term durability of inadequately cured slag concrete.
WhatsApp: +86 18221755073PDF | Because of its high strength, energy reduction, and low environmental impact, researchers have encouraged considering alkali-activated slag... | Find, read and cite all the research you need ...
WhatsApp: +86 18221755073Today, cement and concrete are some of the most consumed materials after water throughout the whole world. About 4.1 billion tons of cement are fabricated annually (half a ton per person) and half of this amount is produced by China [5].In addition, >1 m 3 of concrete per person is produced with Portland cement each year [6].Today, …
WhatsApp: +86 18221755073[Show full abstract] sustainable sand cement brickto reduceCO2emissions.This study investigatesthe influence of Ground Granulated Blast Furnace Slag (GGBS)as a partial cement replacement …
WhatsApp: +86 182217550731.1. Supplementary Cementitious Materials. The cement industry accounts for about 5–9% of global CO 2 emissions [1,2].Therefore, reducing CO 2 emissions by decreasing cement use via the utilization of supplementary cementitious materials (SCMs) has become an important research field in the building materials industry in recent …
WhatsApp: +86 18221755073Utilizing supplementary cementitious materials (SCMs) as partial replacements for ordinary Portland cement (OPC) is a promising approach to reduce clinker content and subsequently lower CO 2 emissions (Bheel et al. 2022; Sohu et al. 2022).Industrial by-products or waste materials, including ground slag, fly ash, ceramic …
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WhatsApp: +86 18221755073Steel slag (SS) has been largely discharged but little utilized, causing an environmental problem in China. In this paper, SS-based composite cementitious materials with high strength were prepared by the high volume of SS (≥40%), granulated blast-furnace slag (GBFS), fly ash (FA), flue gas desulfurization gypsum (FGDG) and cement …
WhatsApp: +86 18221755073China is a large country in terms of coal production and consumption. The fly ash and slag produced by thermal power plants pose a great threat to the environment. To reduce the adverse effects of fly ash and slag on the environment, a mixture of slag and macadam stabilized with cement and fly ash w …
WhatsApp: +86 18221755073One drawback of slag-modified concrete is that at temperatures below 23 °C, the setting time of the slag-modified concrete is significantly delayed, compared with that …
WhatsApp: +86 18221755073In this review, steel slag usage in the cement and concrete industry and its environmental effects were examined. Also, its physical and chemical structure, its effect on the characteristics of ...
WhatsApp: +86 18221755073Adverse Effects of Using Metallurgical Slags as Supplementary Cementitious Materials and Aggregate: A Review. Materials 2022, 15(11), 3803; ... Line 201: is there incompatibility metallurgical slag-cement? Please clarify; Line 276: MPa instead of Mpa; Line 311: Not all SS have high CaO free, it is mainly the BOF slag;
WhatsApp: +86 18221755073Potential Slag Cement Contribution Sustainable Sites SS 3 2.1 and 2.2 Brownfield Redevelopment 1 Slag cement can be used to stabilize and solidify contaminated soils at brownfield sites. Sustainable Sites SS 7.1 2.1 and 2.2 Heat Island Effect: Non-Roof 1 Slag cement is a light -colored material, making concrete more reflective compared
WhatsApp: +86 18221755073Nevertheless, concrete with 20% slag still outperforms concrete without slag because the positive effects of slag on the hydration products and the pore refinement dominate over the adverse impact of slag on the pH value and the porosity at later ages (Wang et al. 2020; Cao et al. 2019; Marcos-Meson et al. 2018; Otieno et al. 2016).
WhatsApp: +86 18221755073Steel slag, copper slag, lead-zinc slag, and electric furnace ferronickel slag are the most common metallurgical slags that could be used as supplementary cementitious materials …
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WhatsApp: +86 18221755073This means that higher temperatures have adverse effects on concrete strength. From the test, however, it has been noted that there was an insignificant loss of strength of concrete at ...
WhatsApp: +86 18221755073operation. This work examines the thermal resistance of concrete. The Slag cement concrete cubes were produced and cured for 28 days and then subjected to varying temperatures range of 100°C, 150°C, 200°C, 250°C, and 300°C. Hardness and compressive strength were measured at 30, 45, and 60 minutes; the sample results …
WhatsApp: +86 18221755073The American Concrete Institute (ACI) has recently published ACI 233R-17 Guide to the Use of Slag Cement in Concrete and Mortar. As slag cement use is rising in the U.S., understanding how slag cement works best in various situations is increasingly important for contractors and engineers.The guide covers information on slag cement chemical …
WhatsApp: +86 18221755073WEBThis paper summarizes the adverse effects of steel slag, copper slag, lead-zinc slag, and electric furnace ferronickel slag in the application of cement-based …
WhatsApp: +86 18221755073Environmental Benefits of Slag Cement. Slag cement is used in nearly all types of concrete construction: pavements; structures and foundations; mass concrete (i.e., dams and retaining walls); and prestressed, dry cast and precast concrete products such as pipes, pavers, and blocks. Today, slag cement is the best option for a concrete …
WhatsApp: +86 18221755073This paper presents an experimental study of the influence of steel basic oxygen slag (BOS) and ordinary portland cement (OPC) on the compressive strength and the hydration mechanisms of blended grounded granulated blast furnace slag …
WhatsApp: +86 18221755073Steel slag, copper slag, lead-zinc slag, and electric furnace ferronickel slag are the most common metallurgical slags that could be used as supplementary cementitious materials (SCMs) and aggregates.
WhatsApp: +86 18221755073Mix Design Effects on the Durability of Alkali-Activated Slag Concrete in a Hydrochloric Acid Environment Mohammad Teymouri 1, Kiachehr Behfarnia 2 and Amirhosein Shabani 3,* Citation: Teymouri, M.; Behfarnia, K.; Shabani, A. Mix Design Effects on the Durability of Alkali-Activated Slag Concrete in a Hydrochloric Acid …
WhatsApp: +86 18221755073This paper summarizes the adverse effects of steel slag, copper slag, lead-zinc slag, and electric furnace ferronickel slag in the application of cement-based materials, and the following conclusions …
WhatsApp: +86 18221755073This study uses slag to substitute for up to 50% of cement by weight to make slag-cement concrete. The specimens were subjected to wet-dry cycle accelerated test for more than one year.
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