ORCID "0000-0003-0338-6562" için listeleme
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Effect of Reduced Fineness of Fly Ash Used on the Alkali-Silica Reaction (ASR) of Concrete
Eker, Hasan; Demir Şahin, Demet; Çullu, Mustafa (SPRINGER INT PUBL AG, 2023)This study aimed to determine the effect of fly ash added to concrete with high calcium content (C class) and different fineness on durability properties such as the alkali-silica reaction (ASR). By substituting ultra-fine ... -
Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures
Şahin, Demet Demir; Eker, Hasan (MDPI, 2024 Mar 2)In this study, Afşin Elbistan C-type fly ash (FA) was used, which protects against the sulphate reaction that damages concrete. The detrimental effects of post-reaction decrease with increasing fly ash fineness. The study ... -
Evaluation of Cherts in Gumushane Province in Terms of Alkali Silica Reaction
Demir Şahin, Demet (Multidisciplinary Digital Publishing Institute (MDPI), April 2024)Alkali–silica reaction (ASR) occurs when alkali oxides coming from the cement composition in concrete come together with reactive silica and moisture coming from the aggregate. Additional maintenance and repair costs caused ... -
Evaluation of Pozzolanic Activity of Two Different Types of C and F Fly Ashes with Fineness Factor
Şahin, Demet Demir; Çavuşoğlu, İbrahim; Yılmaz, Ali Osman (SHAHROOD UNIV TECHNOLOGY, 2023)Today, energy produced from coal is economical compared to other sources but it faces a very serious waste problem. However, these wastes are evaluated by using them as mineral additives in cement, which leads to lower ...