Potential use of sewage sludge ash (SSA) as a cement replacement in precast concrete blocks


  • M. Pérez-Carrión Universidad de Alicante
  • F. Baeza-Brotons Universidad de Alicante
  • J. Payá Instituto de Ciencia y Tecnología del Hormigón (ICITECH), Universitat Politècnica de València
  • J. M. Saval Universidad de Alicante
  • E. Zornoza Universidad de Alicante
  • M. V. Borrachero Instituto de Ciencia y Tecnología del Hormigón (ICITECH), Universitat Politècnica de València
  • P. Garcés Universidad de Alicante




Waste valorisation, CE mark, SSA, precast blocks, concrete


The present study explored the technological feasibility of re-using sewage sludge ash (SSA) as a Portland cement replacement in commercially manufactured pre cast concrete blocks. The blocks analysed were made to the guidelines laid down in Spain’s National Plan for Waste Water Treatment Plant Sludge, 2001–2006, and European Union specifications (CE marking) for such products. Performance was compared in three families of blocks, with 0, 10 and 20% SSA. The findings proved that SSA is apt for pre cast concrete block manufacture and that, in addition to the economic and environmental benefits afforded, its use would improve certain of the properties of conventional block.


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How to Cite

Pérez-Carrión, M., Baeza-Brotons, F., Payá, J., Saval, J. M., Zornoza, E., Borrachero, M. V., & Garcés, P. (2014). Potential use of sewage sludge ash (SSA) as a cement replacement in precast concrete blocks. Materiales De Construcción, 64(313), e002. https://doi.org/10.3989/mc.2014.06312



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