Nitrite admixed concrete for wastewater structures : Mechanical properties, leaching behavior and biofilm development

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

27 Scopus Citations
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Author(s)

  • Xuan Li
  • Liza O'Moore
  • Simeon Wilkie
  • Yarong Song
  • Jing Wei
  • Philip L. Bond
  • Lucija Hanzic
  • Guangming Jiang

Detail(s)

Original languageEnglish
Article number117341
Journal / PublicationConstruction and Building Materials
Volume233
Online published30 Oct 2019
Publication statusPublished - 10 Feb 2020
Externally publishedYes

Abstract

This study systematically investigated the impacts of calcium nitrite addition on the mechanical properties and biofilm communities of concrete-based wastewater infrastructures using sulfate resistant cement through standard tests and DNA sequencing, respectively. The results revealed that setting time and water demand for normal consistency were reduced, but slump, drying shrinkage, and apparent volume of permeable voids increased with calcium nitrite dosage up to 4% weight of cement. The cumulative leached fraction of nitrite, 28-day compressive strength and biofilm communities were not significantly affected by calcium nitrite dosages. The addition of calcium nitrite into concrete is environmentally friendly to wastewater infrastructures. © 2019 Elsevier Ltd.

Research Area(s)

  • Biofilm, Calcium nitrite, Concrete, Sewer, Sulfate resistant cement

Citation Format(s)

Nitrite admixed concrete for wastewater structures: Mechanical properties, leaching behavior and biofilm development. / Li, Xuan; O'Moore, Liza; Wilkie, Simeon et al.
In: Construction and Building Materials, Vol. 233, 117341, 10.02.2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review