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Ingeniería e Investigación

versão impressa ISSN 0120-5609

Resumo

LIZARAZO MARRIAGA, Juan Manuel  e  CLAISSE, Peter. Compressive strength and rheology of environmentally-friendly binders. Ing. Investig. [online]. 2009, vol.29, n.2, pp.5-9. ISSN 0120-5609.

Ordinary Portland cement production accounts for 9% of worldwide greenhouse gas emissions. This paper summarises the results of research aimed at developing environmentally-friendly binders which can be used as an alternative in civil construction, aimed at generating alternatives and sustainable materials. Mixes of the combination of granulated ground blast furnace slag, basic oxygen slag, cement kiln dust and plasterboard gypsum were used for optimising the binders, according to their compressive strength, to obtain 5 concrete mixtures made partially or completely with industrial waste. The results showed that the compressive strength of mixtures of Portland cement and industrial waste were suitable for different civil construction applications and, although mixtures formed entirely from industrial waste had a significant decrease in their compressive strength, the results showed great potential for specific industrial applications. In addition to compressive strength, the rheological properties of these mixtures were determined for defining flow and workability characteristics.

Palavras-chave : granulated ground blast furnace slag; basic oxygen slag; cement kiln dust; plasterboard gypsum; rheology.

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