Influence of Fineness of Cement Produced from Industrial Wastes on Strength of Mortar

Authors

  • Supakij Nontananandh Department of Civil Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Naphol Yoobanpot Department of Civil Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Duangrudee Chaysuwan Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Kiattikun Thongdaeng Department of Environment Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

wastes utilization, cement, clinkerization, mortar, Blaine fineness

Abstract

The effect of the fineness of cement produced from waste-based clinker on mortar strength was studied. Combinations of wastes—namely, ark shell, waste limestone powder and water supply sludge—with the addition of hydrated lime were prepared with an appropriate mix proportion for the clinkerization process to produce cementitious material. Clinkers were ground in order to obtain a target fineness ranging from 2,000 to 3,500 cm2/g and then blended with 5% gypsum by weight to produce a waste-based cement similar to an Ordinary Portland Cement type I (OPC). The chemical and physical properties of the waste-based cement were investigated and compared with those of OPC. The results revealed that the mortar strengths of the waste-based cement increased with curing time but were relatively lower than those of OPC. Cracking and swelling could be observed in mortars produced from wastebased cement having relatively low fineness. The negative effects could be eliminated when cement
fineness was increased, resulting in markedly increased strengths. Expansion behavior due to the reaction of free lime and the formation of ettringite in cement pastes was observed and its implications discussed. 

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Published

2011-08-30

How to Cite

Supakij Nontananandh, Naphol Yoobanpot, Duangrudee Chaysuwan, and Kiattikun Thongdaeng. 2011. “Influence of Fineness of Cement Produced from Industrial Wastes on Strength of Mortar”. Agriculture and Natural Resources 45 (4). Bangkok, Thailand:762-72. https://li01.tci-thaijo.org/index.php/anres/article/view/245354.

Issue

Vol. 45 No. 4 (2011): July-August

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.