Performance of Ground Granulated Blast-Furnace Slag and Coal Fly Ash Ternary Portland Cements Exposed to Natural Carbonation

Abnelia Rivera, Rosa and Sanjuán, Miguel Ángel and Martín Sanchez, Domingo Alfonso and Costafreda Mustelier, Jorge Luis (2021). Performance of Ground Granulated Blast-Furnace Slag and Coal Fly Ash Ternary Portland Cements Exposed to Natural Carbonation. "Materials" (n. 14); p. 3239. ISSN 1996-1944. https://doi.org/10.3390/ma14123239.

Description

Title: Performance of Ground Granulated Blast-Furnace Slag and Coal Fly Ash Ternary Portland Cements Exposed to Natural Carbonation
Author/s:
  • Abnelia Rivera, Rosa
  • Sanjuán, Miguel Ángel
  • Martín Sanchez, Domingo Alfonso
  • Costafreda Mustelier, Jorge Luis
Item Type: Article
Título de Revista/Publicación: Materials
Date: 11 June 2021
ISSN: 1996-1944
Subjects:
Freetext Keywords: Cementitious materials; cement replacement materials; multicomponent binders; ternary cements; industrial by-products in cementitious mixes; coal fly ash; granulated blast-furnace slag; properties of cementitious materials; carbonation
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Ingeniería Geológica y Minera
Creative Commons Licenses: None

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Abstract

Ternary Portland cements are new cementitious materials that contain different amounts of cement replacements. Ternary Portland cements composed of granulated blast-furnace slag (GBFS), coal fly ash (CFA), and clinker (K) can afford some environmental advantages by lowering the Portland cement clinker use. Accordingly, this is an opportunity to reduce carbon dioxide emissions and achieve net-zero carbon emissions by 2050. Furthermore, GBFS and CFA possess pozzolanic properties and enhance the mechanical strength and durability at later ages. Compressive strength and natural carbonation tests were performed in mortar and concrete. Cement-based materials made with GBFS and/or CFA presented a delay in the compressive strength development. In addition, they exhibited lower carbonation resistance than that of mortar and concrete made with plain Portland cements. Concrete reinforcement remains passive in common conditions; however, it could be corroded if the concrete pore solution pH drops due to the carbonation process. Service life estimation was performed for the ternary cements regarding the carbonation process. This information can be useful to material and civil engineers in designing concretes made with these ternary cements.

More information

Item ID: 69431
DC Identifier: https://oa.upm.es/69431/
OAI Identifier: oai:oa.upm.es:69431
DOI: 10.3390/ma14123239
Official URL: https://www.mdpi.com/1996-1944/14/12/3239
Deposited by: Dr. Jorge Luis Costafreda Mustelier
Deposited on: 13 Jan 2022 08:10
Last Modified: 13 Jan 2022 08:10
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