Ultrasonic monitoring of setting and strength development of ultra-high-performance concrete

Doo Yeol Yoo, Hyun Oh Shin, Young Soo Yoon

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this study, the setting and tensile strength development of ultra-high-performance concrete (UHPC) at a very early age was investigated by performing the penetration resistance test (ASTM C403), as well as the direct tensile test using the newly developed test apparatus, and taking ultrasonic pulse velocity (UPV) measurements. In order to determine the optimum surface treatment method for preventing rapid surface drying of UHPC, four different methods were examined: plastic sheet, curing cover, membrane-forming compound, and paraffin oil. Based on the test results, the use of paraffin oil was found to be the best choice for measuring the penetration resistance and the UPV, and attaching the plastic sheet to the exposed surface was considered to be a simple method for preventing the rapid surface drying of UHPC elements. An S-shaped tensile strength development at a very early age (before 24 h) was experimentally obtained, and it was predicted by a power function of UPV. Lastly, the addition of shrinkage-reducing and expansive admixtures resulted in more rapid development of penetration resistance and UPV of UHPC.

Original languageEnglish
Article number294
JournalMaterials
Volume9
Issue number4
DOIs
Publication statusPublished - 2016

Keywords

  • Early age tensile strength
  • Setting property
  • Surface treatment
  • Ultra-high-performance concrete
  • Ultrasonic pulse velocity

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Ultrasonic monitoring of setting and strength development of ultra-high-performance concrete'. Together they form a unique fingerprint.

Cite this