Application of pervious alkali-activated slag concrete to adsorb runoff contaminants

The application of pervious concrete as a runoff contaminant adsorber could be considered as a bright idea for sustainable development in the civil and construction industry. This study investigated the application of pervious alkali-activated slag (PAAS) concrete as a runoff containment adsorber. A combination of activated carbon (AC) derived from the walnut shells, and mineral zeolite as contaminant adsorbers with different dosages were added to fourteen PAAS concrete mixtures. Runoff containing contaminants, including lead (Pb), copper (Cu), and cadmium (Cd), passed through PAAS concrete specimens to measure the contaminant adsorption rate in different mixtures. The mixture containing hybrid adsorbers yielded excellent adsorption rates of 65.84%, 98.66%, and 99.16% for Pb, Cu, and Cd, respectively. Contaminant adsorption capacity was maximized in a hybrid mix containing 15% AC and 20% Z. The compressive strength was also maximum in samples containing 20% zeolite with a slag content of 500 kg/m3.


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  • Accession Number: 01882170
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 18 2023 5:08PM