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Replacement of pozzolanic blended cement by supplementary cementitious materials: Mechanical and environmental approach
https://orcid.org/0000-0002-2918-7900
https://orcid.org/0000-0003-2384-9181
Highlights SCM pozzolanic activity increases cement reactivity until a replacement threshold. SCM hydraulic capacity is more relevant on cement reactivity for high replacement levels. Industrial byproducts may increase more the reactivity of OPC than natural pozzolans. Industrial byproducts improve environmental performance of blended pozzolanic cements. SCM CO2-eq/MPa improvement depends on replacement level and mechanical performance.
Abstract Pozzolanic blended cements, used in several markets, can be mixed with supplementary cementitious materials (SCMs) to improve environmental performance keeping a similar compressive strength. Many SCMs are industrial byproducts that do not require intensive processing. Six industrial byproducts were studied as replacement of pozzolanic blended cement. Reactivity, compressive strength, and environmental performance were measured. Results showed that the use of SCMs as partial replacement for pozzolanic blended cement increases the reactivity of cement and, therefore, the compressive strength of cementitious pastes. Furthermore, environmental results showed beneficial or detrimental effects depending on replacement level, compressive strength, and CO2 footprint of each SCM.
Replacement of pozzolanic blended cement by supplementary cementitious materials: Mechanical and environmental approach
https://orcid.org/0000-0002-2918-7900
https://orcid.org/0000-0003-2384-9181
Highlights SCM pozzolanic activity increases cement reactivity until a replacement threshold. SCM hydraulic capacity is more relevant on cement reactivity for high replacement levels. Industrial byproducts may increase more the reactivity of OPC than natural pozzolans. Industrial byproducts improve environmental performance of blended pozzolanic cements. SCM CO2-eq/MPa improvement depends on replacement level and mechanical performance.
Abstract Pozzolanic blended cements, used in several markets, can be mixed with supplementary cementitious materials (SCMs) to improve environmental performance keeping a similar compressive strength. Many SCMs are industrial byproducts that do not require intensive processing. Six industrial byproducts were studied as replacement of pozzolanic blended cement. Reactivity, compressive strength, and environmental performance were measured. Results showed that the use of SCMs as partial replacement for pozzolanic blended cement increases the reactivity of cement and, therefore, the compressive strength of cementitious pastes. Furthermore, environmental results showed beneficial or detrimental effects depending on replacement level, compressive strength, and CO2 footprint of each SCM.
Replacement of pozzolanic blended cement by supplementary cementitious materials: Mechanical and environmental approach
https://orcid.org/0000-0002-2918-7900
https://orcid.org/0000-0003-2384-9181
Highlights SCM pozzolanic activity increases cement reactivity until a replacement threshold. SCM hydraulic capacity is more relevant on cement reactivity for high replacement levels. Industrial byproducts may increase more the reactivity of OPC than natural pozzolans. Industrial byproducts improve environmental performance of blended pozzolanic cements. SCM CO2-eq/MPa improvement depends on replacement level and mechanical performance.
Abstract Pozzolanic blended cements, used in several markets, can be mixed with supplementary cementitious materials (SCMs) to improve environmental performance keeping a similar compressive strength. Many SCMs are industrial byproducts that do not require intensive processing. Six industrial byproducts were studied as replacement of pozzolanic blended cement. Reactivity, compressive strength, and environmental performance were measured. Results showed that the use of SCMs as partial replacement for pozzolanic blended cement increases the reactivity of cement and, therefore, the compressive strength of cementitious pastes. Furthermore, environmental results showed beneficial or detrimental effects depending on replacement level, compressive strength, and CO2 footprint of each SCM.
Replacement of pozzolanic blended cement by supplementary cementitious materials: Mechanical and environmental approach
Navarrete, Iván (author) / Valdes, Juan (author) / Lopez, Mauricio (author) / Vargas, Felipe (author)
2023-06-21
Article (Journal)
Electronic Resource
English
CEMENT COMPRISING CEMENT CLINKER AND A POZZOLANIC-TYPE SUPPLEMENTARY CEMENTITIOUS MATERIAL
| European Patent Office | 2024