A comparative study on the properties of the mortar with the cathode ray tube funnel glass sand at different treatment methods

Hui Zhao, Chi Sun Poon

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

Abstract

In this study, the CRT funnel glass sand untreated with nitric acid (n-TFG) and treated with nitric acid (TFG) were used to replace river sand as fine aggregate for the production of the mortar. The TFG glass sand series mortars exhibit the worse fluidity and fluidity preservation, the shorter setting times, the lower wet density and mechanical properties than those with n-TFG glass sand. The use of TFG glass sand in the mortar also results in the lower drying shrinkage, alkali-silica reaction (ASR) expansion and leaching content of lead than the blended n-TFG glass sand mortars. Moreover, at the drying shrinkage period of 56 days, the drying shrinkage values of the mortars with TFG glass sand are within the limit of 0.075%. The mortars prepared by TFG glass sand have a low ASR expansion, at the tested age of 14 days, which are below permissible limits (0.10%). The lead leaching of the mortars with TFG glass sand comply with the regulatory limits.
Original languageEnglish
Pages (from-to)900-909
Number of pages10
JournalConstruction and Building Materials
Volume148
DOIs
Publication statusPublished - 1 Sep 2017

Keywords

  • Comparative
  • CRT funnel glass sand waste
  • Mortar
  • Properties
  • Treatment method

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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