Evaluation of Heat Evolution of Pastes Containing High Volume of Ground River Sand and Ground Granulated Blast Furnace Slag

Authors

  • Punnaman NORRARAT King Mongkut's University of Technology Thonburi
  • Weerachart TANGCHIRAPAT King Mongkut's University of Technology Thonburi
  • Chai JATURAPITAKKUL King Mongkut's University of Technology Thonburi

DOI:

https://doi.org/10.5755/j01.ms.23.1.13579

Keywords:

heat evolution, inert material, active material, river sand, particle size, slag reaction

Abstract

This paper investigated the heat evolution of pastes containing inert and active materials with different particle sizes. Ground river sand was used as an inert material while ground granulated blast furnace (GGBF) slag was used as an active material. Ground river sand (GRS) and GGBF slag were ground to have the same particle size and were used separately as a replacement of Portland cement type I at rates of 50 70 % by weight of the binder. Heat evolution of pastes containing GRS and GGBF slag was measured using an isothermal conduction calorimeter up to 72 h. The results showed that GRS with different particle sizes had a slight effect on the heat evolution of pastes. GGBF slag with median particle size d50 of 4.4 µm and d50 of 17.8 µm had a small effect on the heat evolution of pastes during the first 24 h, and the pastes also had very low heat evolution for up to 72 h. At the same replacement rate of Portland cement, however, the heat evolution due to the slag reaction was slightly increased when the particle size of the GGBF slag was decreased. Finally, the higher is the cement replacement by GGBF slag, the higher is the slag reaction.

DOI: http://dx.doi.org/10.5755/j01.ms.23.1.13579

Author Biographies

Punnaman NORRARAT, King Mongkut's University of Technology Thonburi

Punnaman Norrarat, Ph.D Candidate

Department of Civil Engineering

Faculty of Engineering

King Mongkut's University of Technology Thonburi

Weerachart TANGCHIRAPAT, King Mongkut's University of Technology Thonburi

Weerachart Tangchirapat, Ph.D

Department of Civil Engineering

Faculty of Engineering

King Mongkut's University of Technology Thonburi

Chai JATURAPITAKKUL, King Mongkut's University of Technology Thonburi

Chai Jaturapitakkul, Ph.D

Department of Civil Engineering

Faculty of Engineering

King Mongkut's University Thonburi

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Published

2017-03-01

Issue

Section

CONSTRUCTION MATERIALS