Technical and environmental characterization of hydraulic and alkaline binders

JOURNAL OF CLEANER PRODUCTION

卷:196

Article

Espuelas, S.¹  Echeverria, A. M.²  Marcelino, S.³  Prieto, E.³  Seco, A.¹ 

[1] Univ Publ Navarra, Inst Smart Cities, Pamplona 31006, Spain

[2] Zabala Innovat Consulting SA, Mutilva 31192, Spain

[3] Univ Publ Navarra, Dept Projects & Rural Engn, Pamplona 31006, Spain

关键词: Mortar;    Alkali-activated binder;    Hydraulic cement;    Wastes valorization;    Ground granulated blast furnace slag;    Fly ash;    Life cycle analysis;   

DOI  :  10.1016/j.jclepro.2018.06.090

来源: Elsevier

【 摘 要 】

Portland cement is a widely used binder in construction and building applications because of its good properties. Despite its convenience as construction material, the social demands and policies trends are requesting a lower impact and more sustainable cement manufacturing industry. The most effective ways to reach this goal are the substitution of clinker by different wastes or by-products in the cement composition or the development of more sustainable binders like the alkali activated binders. This work analyzes from a technical and environmental point of view the substitution of a clinker based CEM I common cement for the construction mortars manufacturing. Four common cements with different ground granulated blastfurnace slags (GGBS) or fly ashes (FA) contents as well as fifteen alkali activated binders (AAB) combinations were considered. Fresh consistency, density, compressive strength (CS) tests and life cycle analysis were carried out to state the ability of these different hydraulic and alkaline activated binders for the CEM I substitution. The results obtained demonstrated the technical and environmental convenience of these binders for the construction mortars manufacturing. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

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