期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 394, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2023.132263
关键词
Supplementary cementitious materials; Mineral admixtures; Industrial byproducts; Environmental Performance; Mechanical Performance; Pozzolanic blended cement
The study found that the use of industrial byproducts as partial replacement for pozzolanic blended cement increases the reactivity and compressive strength of the cement. However, the environmental impact depends on the replacement level, compressive strength, and CO2 footprint of each supplementary cementitious material (SCM).
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.
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