Design of Roller Compacting Concrete Pavement (original) (raw)
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Evaluation of Effectiveness of Roller Compacted Concrete Pavement by Improving Roughness
2018
Roller Compacted Concrete Pavement (RCCP) is a pavement placed and compacted using an asphalt paver and a compaction roller by applying a small amount of concrete mixture and shows excellent structural performance as a result of hydration reaction of cement and interlocking of aggregates by roller compaction. It also provides economic advantages over conventional concrete pavements by reducing unit cement content and construction period, simplifying construction process, and decreasing traffic closure time (Wayne, 2006). However, given that it tends to show lower IRI levels than common concrete pavements since its low unit water content and binder weight ratios make uniform quality control difficult and roller compaction after paving makes the surface irregular and rough, with rough profile at the bottom of the pavement being reflected on the surface, RCCP is used mainly in port and industrial roads for low speed (60km/h or less) traffic (Dale Harringtion, 2010; Gregory, 2009). In o...
Civil Engineering and Architecture, 2023
Due to the fact that the overall performance of concrete pavement was typically equivalent during the full-service life, the use of the chosen addition made it possible to recycle a substantial proportion of reclaimed asphalt pavement at mid-service and high-service temperatures. One of the advances in building materials is RCC (Roller Compacted Concrete), which is a combination of cement, water, and coarse and fine particles that are compacted by rolling. This surplus is required for road paving construction, particularly on routes that will be quickly utilized or constructed during the rainy season. Recent paper focused on determining the ideal level of compaction for the RCC pavement model. The most important part of this paper is to do a compressive strength study under different levels of compaction for field application. The outcomes of experiment will be explored upon acquiring data on the RCC surface as a result of repeated load cycles. The form of study employed is actual experimental research on the RCC pavement model, which has a width of 70-cm, a length of 240 cm, and various thicknesses. The results indicated that the RCC thickness was compacted 12 times, 16 times, 20 times, 24 times, 32 times, and 40 times with varying compaction numbers as the level of compaction. The degree of compaction represented by compaction number, C N has a substantial influence on the roller compacted concrete performance especially affecting the compressive strength. The optimum compaction number, C N for the 5cm, 6cm and 7cm thickness were determined to be 43, 48, and 58 times respectively.
Romanian Journal of Transport Infrastructure, 2021
Use of roller-compacted concrete in pavement construction is increasing. Roller compacted concrete is a zero-slump, highly compacted concrete that is placed by equipment similar to that used in asphalt pavement construction. This investigation was conducted to collect the state-of-the-art information on effects of coarse aggregate size and texture on the strength and workability of roller-compacted concrete (RCC) for pavement construction and maintenance. Concrete specimens containing cubical and rough coarse aggregate, irregular and rough coarse aggregate, angular and rough coarse aggregate, rounded/spherical and smooth coarse aggregate, and flaky/elongated and rough coarse aggregate were prepared at 1:3:3 concrete mix ratio and 0.4 water cement ratio. Laboratory testing of specimens derived from the concrete specimens showed excellent results for cubical and rough coarse aggregate, irregular and rough coarse aggregate, and angular and rough coarse aggregate. Specimens from the rou...
Investigation of roller compacted concrete: Literature review
Challenge journal of concrete research letters, 2019
Roller compacted concrete is a type of zero slump product produced from the same materials with conventional concrete. There are various methods for the design of RCC namely; corps of engineers' practice, high paste method, roller compacted dam method and maximum density method. Development of RCC has led a significant shift in the construction projects primarily in dams as the traditional practise of placing, compacting and consolidation is slow. By using RCC in earth and rock filled dams made the construction process quicker and consequently shortened the duration of construction. RCC used dam projects and be completed 1-2 years earlier than the other dams as mentioned in the article of Bagheri and Ghaemian (2004). Use of RCC has substantially increased in the last decades especially for pavement applications. It has a low construction cost and can be done quickly compared to asphalt. It is widely constructed in areas/ roads carrying heavy loads in low speed. On the other hand, in recent years' utilization of RCC in urban areas such as highways and streets has also increased. It has been proved that RCC has a competitive advantage over high performance asphalt pavements in terms of high compressive strength, durability, low maintenance cost, longer service life. Like conventional concrete, fibre addition is widely preferred in RCC as well. Fibre addition has contribution to mechanical properties of RCC and sustainability.
The Compaction of Energy and Properties of Roller-Compacted Concrete Pavement with Fillers
Slovak Journal of Civil Engineering
This case study aims to investigate the effects of compaction methods on the mechanical behavior of roller compacted concrete pavement (RCCP) mixtures, which consist of the replacement of different cement by 0%, 5%, and 10% limestone by volume fraction and which were compacted by two compaction methods. These methods are commonly discussed in the literature and were developed to simulate the site conditions in the laboratory. A modified Proctor test was adopted in the mix’s proportional process to optimize the aggregate’s percentage content of RCCP. The experimental series consisted of compression and split tensile performance tests to investigate the development of compaction performances at 28 days. The results showed that, where 10% of the cement was substituted by limestone, the RCC gives important flexural strength values compared to the quantity of the cement substitute. Qualitatively, the reduction in the strength of the concrete using the modified Proctor compaction method l...
Design and evaluation of two-layer roller compacted concrete
2018
Roller Compacted Concrete (RCC) is a mixture of well graded aggregates, cement and water. It is placed with a high compaction asphalt type paver and compacted to high density by vibratory rollers to provide a high strength and durable pavement structure. RCC requires no formwork, surface finishing, dowelled joints or reinforcement. These characteristics make RCC simple, fast and economical. However, it also presents difficulties with high-speed applications related to surface texture and surface evenness. These difficulties have so far restricted the use of RCC to the lower layers of normal roads. A two-layer RCC pavement system is a type of composite pavement consisting of two concrete layers. The two layers are paved in either a “wet-on-wet” technique or ”wet-on-dry” technique. The bottom layer serves as the main bending-resistant component of the composite slab, while the top lift is generally constructed with higher-quality constituent materials for improved surface characterist...
Guide for Roller-Compacted Concrete Pavements
2010
Roller-compacted concrete (RCC) is an economical, fast-construction candidate for many pavement applications. It has traditionally been used for pavements carrying heavy loads in low-speed areas because of its relatively coarse surface. However, in recent years its use has expanded into commercial areas and local streets and highways. This guide provides owner-agencies, contractors, material suppliers, and others with a thorough introduction to RCC and its many applications. Based on current research and best practices, the guide provides detailed overviews of RCC properties and materials, mixture proportioning, structural design, and production and construction considerations, plus troubleshooting guidelines and an extensive reference list for more comprehensive information.
Numerical Analysis of Roller Compacted Concrete Pavement
2016
There has been various design methods for roller compacted concrete (RCC) pavement during a several decades. These design procedure are developed gradually. In this paper a 3D finite element (FE) model of RCC pavement has been developed. . In the validation step, the results of 3D modelling are compared with those obtained by theoretical approach. The comparison shows good correspondences. Due to the fact the theoretical approach uses 2D model in the formula, the 3D FE model results were slightly lower than the theoretical model. Using finite element software ABAQUS software, the paper investigated effects of changes speed in vertical displacement. In order to find the effect of speed in typical RCC pavement with the assumed properties in section 3, five partition for the applying load has created on the surface of slab. Vertical displacement at the bottom of the surface layer has been achieved for six different speed. Considering the obtained results of vertical displacement of the...
Properties, materials and durability of rolled compacted concrete for pavements
Zastita materijala, 2015
Roller-Compacted Concrete (RCC) consists of an engineered mixture of dense-graded aggregates, cement and water. This zeroslump concrete mixture, when placed with an asphalt paver and compacted to high density, provides a high-strength, durable pavement structure. RCC uses no forms, requires no conventional finishing, and needs no dowels or reinforcing steel, making it an economical choice. The low water-cement ratio (usually ranging from 0.30 to 0.40) provides for very high strengths. Common design unconfined compressive strengths for pavements are in the range of 35 to 55 MPa. With the low water-cement ratio there is less paste in the concrete matrix, so there is no bleed water and less shrinkage than in conventional PCC.In the past 30 years it has gained acceptance as a strong and durable pavement material that can withstand heavy loads and severe climates with little required maintenance.
Laboratory evaluation of roller compacted concrete containing RAP
2020
This paper investigates mechanical properties of roller compacted concrete (RCC) involving reclaimed asphalt pavement (RAP). In this way, a set of 276 cylindrical RCC specimens were prepared with different RAP sizes (i.e., fine, coarse & total) at various ratios (i.e., 10%, 20%, and 40%). Results reveal that incorporation of RAP decreases unconfined compressive strength (UCS), modulus of elasticity (E), and indirect tensile (IDT) strength of RCC. For each RAP size, a regression model was used to maximize RAP content while satisfying the UCS lower limit (27.6 Mpa) mentioned by ACI as a minimum requirement for RCC used in pavement construction. Moreover, UCS of RAP incorporated mixes, dissimilar to that of control mixes, was found to be sensitive and insensitive to the testing temperature and curing time after 7 days, respectively. The results also demonstrate that the higher amounts of RAP, the more flexibility in RCC is. This issue was also proved by the results of modulus of elasti...