Early-Age Compressive Strength of No-Slump Concrete Taking into Account the Effect of Curing Temperature

  • LeViet Hung Vietnam Institute for Building Materials, Hanoi 114000, Vietnam
  • Krittiya Kaewmanee Construction and Maintenance Technology Research Center, Sirindhorn International Institute of Technology, Thammasat University, Pathum Thani 12120, Thailand
  • Somnuk Tangtermsirikul School of Civil Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University, Pathum Thani 12120, Thailand
Keywords: Curing temperature, Early-age compressive strength, Fly ash, No-slump concrete

Abstract

This paper presents the results of a study carried out to investigate early-age compressive strength of no-slump concrete (including pre-cast concrete and roller-compacted concrete) in the presence of fly ash and the effect of curing temperature. In this study, the used binders include ordinary Portland cement type I and fly ash. The replacement ratios of fly ash were varied from 0%, 15% and 30% by weight of total binder. In order to evaluate the effect of curing temperature on compressive strength, laboratory specimens were cured at isothermal conditions of 30gif.latex?^{\circ}C (considered as an average normal temperature in Thailand), 45gif.latex?^{\circ}C and 70gif.latex?^{\circ}C. Compressive strength results were collected at 6 hours, 12 hours, 1 day, 3 days, 7 days and 28 days. The results of the study reveal that although the presence of fly ash increases consistency of fresh concrete significantly, it delays compressive strength development at early ages. However, at elevated curing temperature, it significantly affects compressive strength development at early ages. Furthermore, there exists an appropriate curing temperature to gain optimal strength at specific ages of concrete. This temperature depends on factors such as water to binder ratio, replacement ratio of fly ash in the binder, etc.

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Published
2021-06-25
How to Cite
Hung, L., Kaewmanee, K., & Tangtermsirikul, S. (2021). Early-Age Compressive Strength of No-Slump Concrete Taking into Account the Effect of Curing Temperature. cience & echnology sia, 26(2), 25-33. etrieved from https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/244478
Section
Engineering