Valorisation of water treatment sludge for lightweight aggregate production


Publication Highlights

  1. Water treatment sludge (WTS) is incorporated to expanded clay for LWA production.
  2. The expanding properties of LWA are slightly reduced with WTS addition.
  3. LWAC formulated with commercial LWA is similar to LWAC with LWA containing WTS.
  4. WTS can be revalorised by LWA production.

Funding Organizations

Spanish government: PID2021-125810OB-C21 “DESARROLLO DE MATERIALES CEMENTICIOS ECOEFICIENTES, CON BAJO IMPACTO Y ALTA DURABILIDAD”, TED2021-129718B-I00 “Hormigón arquitectónico no estructural para uso urbano formulado con cementos activados alcalinamente utilizado como precursor escorias de incineración de residuos municipales”.

Generalitat de Catalunya: DIOPMA (2017 SGR 188).