To evaluate the wastes and cement chemical characteristics, leaching procedures were performed, previous to mortar manufacture. Mortars, with and without waste incorporation, were made allowing comparative analyses of the adhesive capacity of the materials under study. The mechanical strength was also evaluated by compressive and flexural strength tests at different ages. Chemical stability of mortars was tested at 28-day samples.
Results showed that the incorporation of small amounts of ashes from biomass and lime mud from a paper mill in the mortars did not decrease significantly the mechanical strength and had no negative effect in the chemical behavior of the mixtures.
Index Terms—Ashes, eco-materials, mortar, pulp mill sludge, waste valorization.
The authors are with the Escola Superior de Tecnologia, Portugal (e-mail: ipbras@estv.ipv.pt, ralmeida@estv.ipv.pt, pcosteira@estv.ipv.pt, luismarques0@hotmail.com).
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Cite: Isabel Brás, Ricardo Almeida, P. Costeira Silva, and Luís Marques, "Industrial Waste Valorization to Produce Eco-materials for Construction Applications," International Journal of Environmental Science and Development vol. 7, no. 8, pp. 559-562, 2016.