In this study, roller compacted concretes were produced by using polycarboxylate-based third generation high-performance mortar and concrete admixture, which provides ultra-high range water reduction and long workability time. In roller compacted concrete production, the chemical admixture dosage was 1%, which was the maximum dosage recommended by the manufacturer, and the amount of water used was reduced by 10, 20, 30 and 40% compared to the concrete produced without the use of concrete admixture. The physical and mechanical properties of the roller compacted concrete specimens were investigated. When the ultra-high range water reducer was used as 1% of the cement weight in the production of roller compacted concrete, optimum values in terms of unit weight, compressive strength, water absorption, ultrasonic pulse velocity and dynamic modulus of elasticity were obtained by reducing the mixing water by 10%. Although the water/cement ratio decreased, further reduction in water amount resulted in a decrease in compressive strength and affected the concrete quality negatively.
compactibility chemical admixture compressive strength roller compacted concrete water reducer
Birincil Dil | İngilizce |
---|---|
Konular | İnşaat Mühendisliği |
Bölüm | Araştırma Makalesi |
Yazarlar | |
Yayımlanma Tarihi | 28 Şubat 2022 |
Gönderilme Tarihi | 25 Temmuz 2021 |
Kabul Tarihi | 19 Ocak 2022 |
Yayımlandığı Sayı | Yıl 2022 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.