Affiliations 

  • 1 POSCO Engineering and Construction, Incheon Tower-Daero, Yeonsu-gu, Incheon 22009, Korea
  • 2 School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Korea
  • 3 Department of Structure and Materials, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Materials (Basel), 2021 Aug 19;14(16).
PMID: 34443190 DOI: 10.3390/ma14164663

Abstract

The major cement composition ratios of alite, belite, aluminate, and ferrite have been calculated with the Bogue models until now. However, a recent comprehensive analysis based on various experimental data has revealed that the chemical composition of alite, belite, aluminate, and ferrite implemented by the Bogue models are slightly different than the experimental data, where small amounts of Al2O3 and Fe2O3 existing in alite and belite can change the prediction of cement composition. Since the amounts of cement compound are very important factors in determining the properties of concrete, improvement in the calculation would give more precise prediction for application usages such as climate change adaptable cement and high durable concrete manufacturing. For this purpose, 20 new models are proposed by modifying chemical compositions of the cement compounds and verified with the 50 experimental data sets. From the verification, the most accurate models are identified. The calculation using new models exhibit an accuracy improvement of approximately 5% compared to the Bogue models. Their applicable range is also presented. The study results are discussed in detail in the paper.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.