A study on the properties of carbon black mortar using granulated blast furnace slag and polymer

  • Hong Seok Jang
  • , Ui Hyeon Jeon
  • , Seung Young So*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

White Portland Cement (WPC) and inorganic pigment have been used in colored concrete, but there are some physical problems such as increases in efflorescence, and poor workability and low economics. The aim of this study was to investigate the effects of GBFS and polymer (methyl cellulose) on the physical properties of carbon black mortar. For this purpose, a flow test, compressive strength test and color evaluation and was carried out on cement mortar mixed with polymer by changing the proportion of cement and ratio of GBFS. The results show that the addition of polymer influences significantly the color value efficiency in colored mortar. This is due to the reduction of overall amount of micro pore. This polymer films prevent the transport of soluble calcium towards the surface, and decreases efflorescence. And the flow of colored mortar was increased in proportion to the addition rate of the GBFS. In addition the strength of colored mortars with GBFS at the long-term aged (after 28 days) was higher than that of the general WPC mortar, although its strength was developed slowly at the early ages.

Original languageEnglish
Pages (from-to)9110-9115
Number of pages6
JournalJournal of nanoscience and nanotechnology
Volume15
Issue number11
DOIs
StatePublished - 2015.11.1

Keywords

  • Carbon black mortar
  • Color evaluation
  • GBFS
  • Methyl cellulose

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Chemical
  • Chemistry
  • Physics & Astronomy
  • Biological Sciences

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