Physical and chemical characteristics of unground palm oil fuel ash cement mortars with nanosilica

Noorvand H., Ali A. A. A., Demirboga R., Noorvand H., Farzadnia N.

CONSTRUCTION AND BUILDING MATERIALS, cilt.48, ss.1104-1113, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 48
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.conbuildmat.2013.07.070
  • Dergi Adı: CONSTRUCTION AND BUILDING MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1104-1113
  • Anahtar Kelimeler: Unground palm oil fuel ash, Nanosilica, Mechanical properties, Chemical composition, Microstructure, Mortars, COLLOIDAL NANO-SILICA, RICE HUSK ASH, FLY-ASH, CHLORIDE PERMEABILITY, MECHANICAL-PROPERTIES, CONCRETE, MICROSTRUCTURE, HYDRATION, STRENGTH, NANO-SIO2
  • Atatürk Üniversitesi Adresli: Evet

Özet

The present study focused on enhancing properties of unground palm oil fuel ash (UPOFA) mortars by incorporation of nanosilica (NS). To do so, 0.5-1.5% NS was admixed in each series of 10-30% UPOFA, respectively. The results revealed that incorporating NS offset the adverse effect of UPOFA on flowability, compressive strength and water absorption of mortars. Addition of NS increased the replacement level of UPOFA up to 20% with comparable compressive strength to control sample. SEM and XRD results showed that admixing NS led to improvement in the microstructure, and pozzolanic behavior of UPOFA mixtures at 28 days. (C) 2013 Elsevier Ltd. All rights reserved.