Comparison of laboratory practices for roller compacted concretepavements

Şengün, Emin
Aykutlu, Mehmet Ali
Shabani, Reza
Aleessa Alam, Burhan
Yaman, İsmail Özgür
Many advantages like time, cost and sustainability provided by the use of Roller Compacted Concrete (RCC) are behind the increase of this use in pavements, dams, airports, industrial storehouse, military fields and other applications day by day. However, even that many countries started to use this technology since the 1970’s, especially Canada and USA, there is no fully efficient laboratory test method that can represent the compaction conditions of the field. This study aims to compare the main compaction methods that are used to prepare RCC specimens in the laboratory. To achieve this purpose, different RCC mixture designs were prepared by changing the three main factors that most affect the RCC concrete matrix through the use of two different cement dosages (200 and 400 kg/m3 ), two maximum aggregate sizes (Dmax 12 mm and 19 mm) and five different water contents (3-4-5-6-7%). Along with this, different compaction techniques (modified proctor, vibrating table, vibrating hammer and superpave gyratory compacter) were applied for each mixture. Then, the effects of RCC mixing parameters on the Vebe time, the density and the compressive strength were investigated. Especially for compressive strength, the use of a vibrating hammer gives higher density and strength values for lower cement content mixtures whereas other compaction methods exhibit lower values for all mixtures when compared to gyratory compactor.
13th International Symposium on Concrete Roads (2018)


Comparison of several laboratory compaction practices applied on roller compacted concrete pavements
Şengün, Emin; Shabani, Reza; Aleessa Alam, Burhan; Aykutlu, Mehmet Ali; Yaman, İsmail Özgür (2018-09-14)
Pavements can be considered as one of the most constructed, renewed and repaired structures. This fact implies the need of continuous R&D works to be able to get the highest efficiency of those pavements, which can be only done through a good harmonized conjunct work between the field and the laboratory. In the recent years, Roller Compacted Concrete (RCC) has been increasingly used in pavement applications due to many advantages of this type of concrete, and the similarity to the production equipment of as...
The effects of compaction methods and mix parameters on the properties of roller compacted concrete mixtures
Şengün, E.; Alam, B.; Shabani, R.; Yaman, İsmail Özgür (2019-12-20)
Despite the wide use of RCC, there is no specific compaction methodology developed to simulate the site conditions in the laboratory. Yet, there are few compaction methods that are generally used to produce RCC specimens in the laboratory environment. The most common methods are the vibrating table and the vibrating hammer found in ASTM, and the modified proctor and Superpave gyratory compactor (SGC), which are suggested to be standardized. However, it is not well known how these different compaction techni...
Evaluation of Warm Mix Asphalt compactability indices using laboratory compactors from a temperature perspective
Pamuk, Omer Can; Öztürk, Hande Işık (2021-04-01)
In practice, the production temperatures of Warm Mix Asphalt (WMA) mixtures are determined based on practical experiences and recommendations. Thus, the focus of this study is to propose a temperature-sensitive compactabilty assessment method to quantify the temperature needs of WMA mixtures. Therefore, in this study, an image-based testing setup coupled with the Marshall Apparatus was developed to obtain the densification curve of asphalt mixtures considering its sensitivity to temperature changes. Further...
Bonding efficiency of roller compacted concrete with different bedding mixes
Özcan, Sinan; Yaman, İsmail Özgür; Department of Civil Engineering (2008)
Roller Compacted Concrete (RCC) has rapidly evolved from a concept to a material and a process which is used throughout the world for faster and more economical construction of dams. Currently, there are more than 250 RCC dams, completed or under construction, in the world. On the other hand, currently, there are only two RCC dams completed (Suçatı and Cindere Dams) and two under construction (Beydağ and Çine Dam) in Turkey. RCC dams are constructed in a series of compacted layers usually 30 cm in thickness...
Retrofit of Non-Ductile RC Frames with Precast Concrete (PC) Wall Panels
BARAN, MEHMET; Tankut, Tugrul (2011-12-01)
An economic, structurally effective and practically applicable strengthening method had been developed for reinforced concrete (RC) framed buildings. This study presents the test results on strengthening of deficient RC frames by using high strength precast concrete (PC) panels. The idea of the method is to convert the existing hollow brick infill wall into a load carrying system by bonding PC panels on to the plastered hollow brick infills. For this purpose, six (two reference and four strengthened) one-th...
Citation Formats
E. Şengün, M. A. Aykutlu, R. Shabani, B. Aleessa Alam, and İ. Ö. Yaman, “Comparison of laboratory practices for roller compacted concretepavements,” presented at the 13th International Symposium on Concrete Roads (2018), Berlin, Germany, 2018, Accessed: 00, 2021. [Online]. Available: