Mechanical properties of concrete with blast furnace slag fine aggregates subjected to freeze-thaw cycles

Muhammad Aboubakar Farooq, Kyoko Takeda, Yasuhiko Sato, Kyoji Niitani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This study presents the experimental investigation carried out to evaluate the performance of non air-entrained concrete with blast furnace slag (BFS) sand as full amount of fine aggregates under freeze thaw cycles in comparison with conventional air-entrained normal concrete. Cuboidal specimens were used for freeze-thaw test. The concrete specimens were subjected to freeze-thaw cycles (FTC) in 3% NaCl solution at the age of about 4 months. The duration of each freeze-thaw cycle was 8 h with temperature variation between +20 °C and -25 °C. The strain variation during each FTC was recorded using strain gauges attached to the concrete surface and change of relative dynamic modulus of elasticity was measured at certain number of FTC using ultrasonic pulse velocity method. The damage progress is discussed based on plastic tensile strain accumulated during freeze-thaw cycles. A particular number of specimens were taken out from freeze-thaw chamber after 50, 125 and 225 FTC. Thereafter, the static compressive strength tests were performed to determine the change in mechanical properties of concrete with blast furnace slag fine aggregates compared with normal concrete at different number of FTC. BFS concrete showed more compressive strength and Young's modulus for same FTC number compared to normal concrete, however, the rate of reduction of mechanical properties of air-entrained normal concrete is slightly slow.

Original languageEnglish
Title of host publicationHigh Tech Concrete
Subtitle of host publicationWhere Technology and Engineering Meet - Proceedings of the 2017 fib Symposium
PublisherSpringer International Publishing
Pages65-72
Number of pages8
ISBN (Electronic)9783319594705
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes
Event2017 fib Symposium - High Tech Concrete: Where Technology and Engineering Meet - Maastricht, Netherlands
Duration: 2017 Jun 122017 Jun 14

Other

Other2017 fib Symposium - High Tech Concrete: Where Technology and Engineering Meet
CountryNetherlands
CityMaastricht
Period17/6/1217/6/14

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Keywords

  • Blast furnace slag fine aggregates
  • Concrete
  • Freeze-thaw cycles
  • Mechanical properties

ASJC Scopus subject areas

  • Architecture
  • Building and Construction
  • Civil and Structural Engineering

Cite this

Farooq, M. A., Takeda, K., Sato, Y., & Niitani, K. (2017). Mechanical properties of concrete with blast furnace slag fine aggregates subjected to freeze-thaw cycles. In High Tech Concrete: Where Technology and Engineering Meet - Proceedings of the 2017 fib Symposium (pp. 65-72). Springer International Publishing. https://doi.org/10.1007/978-3-319-59471-2-9