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Pioneering research for sustainable development

CITEEC carries out pioneering research in civil engineering, materials, sustainability and infrastructure. Thanks to multidisciplinary projects and international collaborations, scientific papers are being published that address key challenges facing the sector. This section presents the main papers and results produced by our research groups.

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Pioneering research for sustainable development

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2017

González-Fonteboa, Belén; Carro-López, Diego; de Brito, Jorge; Martínez-Abella, Fernando; Seara-Paz, Sindy; Gutiérrez-Mainar, Salvador

Comparison of ground bottom ash and limestone as additions in blended cements Journal Article

In: Materials and Structures/Materiaux et Constructions, vol. 50, no. 1, 2017, ISSN: 13595997, (cited By 14).

Abstract | Links | BibTeX | Tags: Acceptable performance; Blended cement; Bottom ash; Disposal in landfills; Economic and environmental benefits; Fluidized bed boilers; Pozzolanic activity; Water penetration depths, Ash handling; Ashes; Boilers; Compressive strength; Environmental impact; Fluidized bed combustion; Fluidized beds; Land fill; Limestone, Cements

@article{González-Fonteboa2017,

title = {Comparison of ground bottom ash and limestone as additions in blended cements},

author = {Belén González-Fonteboa and Diego Carro-López and Jorge de Brito and Fernando Martínez-Abella and Sindy Seara-Paz and Salvador Gutiérrez-Mainar},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990841344&doi=10.1617%2fs11527-016-0954-x&partnerID=40&md5=1b9e199ee47e4b97dad2874f8db6282f},

doi = {10.1617/s11527-016-0954-x},

issn = {13595997},

year  = {2017},

date = {2017-01-01},

urldate = {2017-01-01},

journal = {Materials and Structures/Materiaux et Constructions},

volume = {50},

number = {1},

publisher = {Kluwer Academic Publishers},

abstract = {The number of fluidized bed power plants is growing rapidly due to economic and environmental benefits. These facilities produce larger quantities of bottom ash than conventional boilers. This ash exhibits pozzolanic activity once ground, but due to regulation limitations this by-product is nowadays destined to landfill. Blended cements are the most common cements in Europe and their consumption is continuously growing due to the reduction of environmental impact they allow. In this work, ground bottom ash (GBA) is characterized to determine whether it is suitable for blended cements’ production. This GBA was used in ratios of 10, 20 and 40 % as cement replacement. At the same time, it was compared with type I cement without additions and also with the second most used addition in blended cements: limestone. The cements with GBA showed acceptable performance to produce general purpose cements in the frame of present regulations, reaching 52.5 MPa at 28 days for 10 % of substitution. When compared with limestone, the cements with GBA presented higher compressive strength, better durability and a slight reduction in workability. At the same time, GBA led to higher clinker reductions, thus directly causing lower environmental impacts, and also indirect benefits from the prevention of the disposal in landfill of this bottom ash from fluidized-bed boilers. © 2016, RILEM.},

note = {cited By 14},

keywords = {Acceptable performance; Blended cement; Bottom ash; Disposal in landfills; Economic and environmental benefits; Fluidized bed boilers; Pozzolanic activity; Water penetration depths, Ash handling; Ashes; Boilers; Compressive strength; Environmental impact; Fluidized bed combustion; Fluidized beds; Land fill; Limestone, Cements},

pubstate = {published},

tppubtype = {article}

}