Effect of Colemanite Ore Wastes Utilization on Fresh Properties and Compressive Strength of Cementitious Systems

Özen S., Durgun M. Y., Kobya V., Karakuzu K., Mardani A.

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, cilt.47, sa.10, ss.12873-12887, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 10
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1007/s13369-022-06641-8
  • Dergi Adı: ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), zbMATH
  • Sayfa Sayıları: ss.12873-12887
  • Anahtar Kelimeler: Colemanite wastes, Cementitious systems, Fresh properties, Rheological parameters, Compressive strength, FLY-ASH, MECHANICAL-PROPERTIES, BORON WASTE, BOTTOM ASH, PARTIAL REPLACEMENT, BY-PRODUCTS, SILICA FUME, CONCRETE, METAKAOLIN, CLAY
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

In this study, the usability of colemanite wastes (CW), in mortar mixtures, was examined in terms of compressive strength, while at the same time it was aimed to evaluate the effects of this waste on the rheological properties of mortar and paste mixtures. Mortar and cement paste mixtures were produced by substituting 1, 3, 5, and 7% of the cement with the CW. Marsh-funnel flow times, mini-slump values, rheological parameters, and setting times of cement paste mixtures containing CW were determined. The time-dependent slump-flow and 1-, 7-, 28-, and 56-day compressive strength values of the mortar mixtures were determined. The microstructures of the specimens were evaluated by using SEM images, and phase analyses were examined with XRD analysis. The results showed that the use of CW negatively affected the fresh state properties and rheological parameters of cementitious systems. However, CW addition decreased the 1-, 7-, and 28-day compressive strength. Only a slight increase was observed in the strength of mixtures containing 5 and 7% CW at 56 days.