Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar

M. Aly, M.S.J. Hashmi, A.G. Olabi, M. Messeiry, E.F. Abadir, A.I. Hussain

Research output: Contribution to journalArticlepeer-review

163 Citations (Scopus)

Abstract

This paper presents a laboratory study of the properties of colloidal nano-silica (CS)/waste glass cement composites. The microstructure, alkali–silica reaction (ASR), and the mechanical properties of cement mortars containing waste glass powder (WG) as a cement replacement with and without CS are investigated and compared with plain mortar. In addition, the hydration of cement compounds was followed by differential thermal analysis (DTA), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The results show that incorporation of WG has a positive effect on the mechanical properties of cement mortars especially when CS is presented. In addition, the DTA/TGA results and XRD analysis show a reduction in the calcium hydroxide (CH) content in mortars with both WG and a hybrid combination of WG and CS. This confirms the improvement of mechanical properties and the occurrence of the pozzolanic reaction after 28 days of hydration.
Original languageEnglish
Pages (from-to)127-135
Number of pages9
JournalMaterials & Design
Volume33
DOIs
Publication statusPublished - Jan 2012
Externally publishedYes

Keywords

  • Nano-materials
  • Concrete
  • Mechanical

Fingerprint

Dive into the research topics of 'Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar'. Together they form a unique fingerprint.

Cite this