Study of standard grade concrete consisting of granulated blast furnace slag as a fine aggregate

Srinivasarao, Ch.; Reddy, S. Vijaya Bhaskar

doi:10.1016/j.matpr.2020.01.024

Cited by 11 publications

(4 citation statements)

References 4 publications

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“…Es importante anotar, que están compuesta principalmente (95%) por cuatro óxidos de: calcio, magnesio, silicio y aluminio [6]. Estas son ampliamente utilizadas como adición mineral para reemplazo de cemento [7][8][9][10][11][12], así como agregado para concreto y mortero [13][14][15][16][17][18].…”

Section: Tipos De Escoriasunclassified

Uso de las escorias de horno de arco eléctrico (EHAE) en la construcción – estado del arte

Rojas-Manzano¹,

Otálvaro-Calle²,

Pérez-Caicedo³

et al. 2021

Rev. UIS ing.

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El aumento de la población mundial ha tenido como consecuencia el crecimiento de la industria de la construcción. Lo anterior, implica la explotación de recursos naturales no renovables y por ende un mayor impacto ambiental por la contaminación del suelo, el agua y el aire. Así, el desarrollo sostenible se ha convertido en una prioridad en la industria, por ejemplo, por medio de la incorporación de residuos en la cadena productiva. El acero puede producirse por dos métodos: el alto horno (se funden minerales de hierro) y el horno de arco eléctrico (se funde chatarra metálica reciclada). En este último, el proceso más utilizado en Colombia, se forma la escoria horno de arco eléctrico (EHAE). Este residuo representa una oportunidad de aprovechamiento en la construcción. Varias investigaciones han estudiado el uso de este material como agregado y como materia prima del cemento. Así mismo, su utilización como sustituto de material granular en la construcción de terraplenes, bases, subbases y capas de rodadura, siendo en el área de pavimentos donde mayor aplicación puede darse a la escoria. Este trabajo tiene como objetivo realizar una revisión actualizada del estado del arte sobre el uso de la EHAE en la construcción, para promover la implementación correcta y segura de este residuo y aportar a la sostenibilidad de la industria siderúrgica.

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Section: Tipos De Escoriasunclassified

Uso de las escorias de horno de arco eléctrico (EHAE) en la construcción – estado del arte

Rojas-Manzano¹,

Otálvaro-Calle²,

Pérez-Caicedo³

et al. 2021

Rev. UIS ing.

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“…Yüksel et al [14] reported increases in concrete's compressive strength when NS was replaced with 10-30% GBFS fine aggregate. Other studies have shown that NS can be replaced with 40-70% GBFS fine aggregate in PC-based concrete without affecting its compressive strength [17][18][19][20]. Patra and Mukharjee [21] reported that the incorporation of GBFS aggregate resulted in a decrease in three days compressive strengths, regardless of the replacement level and water-to-cement (w/c) ratio, suggesting that the effects of GBFS fine aggregate on mortar depend on the curing age.…”

Section: Introductionmentioning

confidence: 99%

“…Escalante-García et al [16] and Xue et al [17] reported greater compactness of the interfacial transition zone (ITZ) around GBFS aggregates than around NS due to the pozzolanic reactivity of GBFS aggregate. Srinivasarao and Reddy [18] and Binici et al [22] showed that the permeability of PC-based materials decreased when NS was replaced with 5-50% GBFS fine aggregate, while other researchers reported opposite results [14,19].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and durability properties of C–S–H-seeded cement mortar cured at fluctuating low temperatures with granulated blast furnace slag as fine aggregates

Alzaza

Ohenoja

Shaikh

et al. 2022

Journal of Building Engineering

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“…Steel slag is a product of the metallurgical process, where active molten slag is used to separate undesirable adulterants and excess carbon. The potential for use of blast furnace slag is huge, primarily including a cement replacement in the production of concrete [9] or a replacement for the natural aggregates in the concrete and mortar production [10][11][12]. Such concrete materials could be, in addition, more beneficial for the environment due their increased durability.…”

Section: Introductionmentioning

confidence: 99%

Sustainability Potential Evaluation of Concrete with Steel Slag Aggregates by the LCA Method

et al. 2020

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Sustainability in the construction industry refers to all resource-efficient and environmentally responsible processes throughout the life cycle of a structure. Green buildings may incorporate reused, recycled, or recovered materials in their construction. Concrete is as an important building material. Due to the implementation of by-products and waste from various industries into its structure, concrete represents a significant sustainable material. Steel slag has great potential for its reuse in concrete production. Despite its volume changes over time, steel slag can be applied in concrete as a cement replacement (normally) or as a substitute for natural aggregates (rarely). This paper focused on an investigation of concrete with steel slag as a substitute of natural gravel aggregate. Testing physical and mechanical properties of nontraditional concrete with steel slag as a substitute for natural aggregates of 4/8 mm and 8/16 mm fractions confirmed the possibility of using slag as a partial replacement of natural aggregate. Several samples of concrete with steel slag achieved even better mechanical parameters (e.g., compressive strength, frost resistance) than samples with natural aggregate. Moreover, a life cycle assessment (LCA) was performed within the system boundaries cradle-to-gate. The LCA results showed that replacements of natural aggregates significantly affected the utilization rate of nonrenewable raw materials and reduced the overall negative impacts of concrete on the environment up to 7%. The sustainability indicators (SUI), which considered the LCA data together with the technical parameters of concrete, were set to evaluate sustainability of the analyzed concretes. Based on the SUI results, replacing only one fraction of natural gravel aggregate in concrete was a more sustainable solution than replacing both fractions at once. These results confirmed the benefits of using waste to produce sustainable materials in construction industry.

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Study of standard grade concrete consisting of granulated blast furnace slag as a fine aggregate

Cited by 11 publications

References 4 publications

Uso de las escorias de horno de arco eléctrico (EHAE) en la construcción – estado del arte

Uso de las escorias de horno de arco eléctrico (EHAE) en la construcción – estado del arte

Mechanical and durability properties of C–S–H-seeded cement mortar cured at fluctuating low temperatures with granulated blast furnace slag as fine aggregates

Sustainability Potential Evaluation of Concrete with Steel Slag Aggregates by the LCA Method

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