Öğütülmüş Kolemanit Katkısının Çimento Harçlarına Etkisi
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Date
2018
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info:eu-repo/semantics/openAccess
Abstract
Bu çalışmada, öğütülmüş kolemanit katkısının çimento harç özelliklerine etkisi araştırılmıştır. Öncelikle öğütülmüş kolemanitin puzolanik aktivite özelliği belirlenmiştir. Daha sonra farklı oranlarda (%0, %1, %3, %5, %7) öğütülmüş kolemanit katkılı çimento harçlarının; özgül ağırlık, özgül yüzey, priz başlama ve sona erme süreleri tayini, kıvam ve genleşme deneylerinin yapılmasının yanı sıra harç numunelerin basınç dayanımı (2, 7 ve 28 günlük) belirlenerek referans numunesi ile karşılaştırılmıştır. Deney sonuçlarına göre, öğütülmüş kolemanit ikame oranının artışıyla priz başlangıç ve priz sona erme sürelerinin uzadığı, tüm çimento harçlarının TS EN 197-1 standardında istenilen en düşük mekanik özelliği sağladığı (42.5 MPa ve 62.5MPa) ve %1, %3 ve %5 oranında kolemanitin çimento ikame malzemesi olarak kullanılabileceği tespit edilmiştir
In this study, the effects of ground colemanite admixture on cement mortar characteristics were investigated. Firstly, the pozzolanic activity property of the ground colemanite was determined. Afterwards, as well as specific gravity, specific surface, setting and ending times, consistency and expansion tests of ground colemanite-added cements at different rates (0%, 1%, 3%, 5%, 7%) and mortar samples (2, 7 and 28 days) were determined and also these were compared with the reference sample. According to the results of the experiment, the set start and the ending time of the settling time was elongated with the increase of ground colemanite substitution ratio, furthermore all cement mortars provide the lowest mechanical properties required in TS EN 197-1 standard (42.5 MPa and 62.5 MPa) and 1%, 3% and 5 % of colemanite can be used as cement substitute material
In this study, the effects of ground colemanite admixture on cement mortar characteristics were investigated. Firstly, the pozzolanic activity property of the ground colemanite was determined. Afterwards, as well as specific gravity, specific surface, setting and ending times, consistency and expansion tests of ground colemanite-added cements at different rates (0%, 1%, 3%, 5%, 7%) and mortar samples (2, 7 and 28 days) were determined and also these were compared with the reference sample. According to the results of the experiment, the set start and the ending time of the settling time was elongated with the increase of ground colemanite substitution ratio, furthermore all cement mortars provide the lowest mechanical properties required in TS EN 197-1 standard (42.5 MPa and 62.5 MPa) and 1%, 3% and 5 % of colemanite can be used as cement substitute material
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Fırat Üniversitesi Mühendislik Bilimleri Dergisi
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Volume
30
Issue
1
