Cement Science and Concrete Technology
Online ISSN : 2187-3313
Print ISSN : 0916-3182
ISSN-L : 0916-3182
Properties of Concrete
EXAMINATION OF FUNDAMENTAL PROPERTIES OF CONCRETE USING COAL GASIFICATION SLAG FINE AGGREGATE
Yoshitaka MATSUURAMasaki WASHIZUTakuya MAESHIMAIchiro IWAKI
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JOURNAL FREE ACCESS

2021 Volume 75 Issue 1 Pages 210-217

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Abstract

Aiming to establish the use of coal gasification slag fine aggregate (CGS) which has become a new JIS standard material as a slag aggregate for concrete, the quality of CGS due to the type of coal, and the effect of the CGS mix ratio on the fundamental properties of concrete were investigated. As a result, the investigations confirmed that the amount of bleeding increased and the early age strength slightly decreased with increasing CGS mix ratio. However, at long-term age, the studies suggested that the transition zone may be densified by pozzolanic reaction of CGS itself, which may have a positive effect such as an increase in long-term strength and an improvement in chloride penetration resistance.

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