Use of granular coal combustion products as aggregates in structural concrete: Effects on properties and recommendations regarding mix design

Rodríguez-Álvaro, Roberto; Seara Paz, Sindy; González-Fonteboa, Belén; Martínez-Abella, Fernando

Use this link to cite:

http://hdl.handle.net/2183/38016

Use of granular coal combustion products as aggregates in structural concrete: Effects on properties and recommendations regarding mix design

Files

GonzalezFonteboaBelen_2021_CaBM_273_121690.pdf (4.49 MB)

Identifiers

URI: http://hdl.handle.net/2183/38016

DOI: 10.1016/j.conbuildmat.2020.121690

Publication date

2021

Authors

Rodríguez-Álvaro, Roberto

Seara Paz, Sindy

González-Fonteboa, Belén

Martínez-Abella, Fernando

Bibliographic citation

Rodriguez-Alvaro, R., Seara-Paz, S., Gonzalez-Fonteboa, B., & Martinez-Abella, F. (2021). Use of granular coal combustion products as aggregates in structural concrete: Effects on properties and recommendations regarding mix design. Construction and Building Materials, 273, 121690. https://doi.org/10.1016/j.conbuildmat.2020.121690

Abstract

[Abstract:] This review collates the results obtained in more than 100 scientific publications regarding the performance of concrete with granular coal combustion products (GCCP, commonly referred to as coal bottom ash in literature) as a partial substitute for conventional aggregate. The effects of this by-product on the workability, density and mechanical and durability related properties were analysed. Some conclusions and recommendations are provided to facilitate future research. These recommendations include conducting careful assessments of the specific gravity and water absorption properties of GCCP, replacing conventional aggregate by volume, and compensating the water absorption of GCCP. The use of GCCP as an internal curing water reservoir is proposed as the most promising advanced application.