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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Shrinkage, Strength of High and Ordinary Concrete Incorporating Kosovo and Japanese Fly-ash
Author(s)
Anjeza Alaj and Tatsuya Numao
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DOI:10.17265/2162-5298/2016.09.002
Affiliation(s)
Department of Urban and Civil Engineering, Ibaraki University, Hitachi 316-8511, Japan
ABSTRACT
Ordinary and high performance concrete (OC-C 25/30 and HPC C-50/60) made
with fly ash has found numerous applications all over the world since 1970. In Kosovo, fly ash as cement substitution
in concrete has not been utilized yet despite the large amount that is produced
annually and the positive economical-environment aspects of such technique. This
hesitance is due to the lack of experience in the concrete engineering field and
because of the chemical composition of Kosovo fly ash, which is classified as non-standard
high calcium fly ash (KF). In light of this fact, this study intended to develop
further. So, this paper reports the consistency, workability, shrinkage, high and
ordinary compressive strength of concrete containing different percentage of non-class
high calcium fly ash as Portland cement substitution (first case-Kosovo fly ash
KF) comparing results with F class-low calcium fly ash content (second case-Japanese
fly ash JF) which is common used as cement replacement.
KEYWORDS
Non-standard fly ash, ordinary and high performance concrete, compressive strength, shrinkage.
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