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The Fatigue Behaor of Rolled Compacted Concrete

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This paper presents the partial results of a research on Rolled Compacted Concrete (RCC) which aimed at characterizing its fatigue behavior. The influence of cement content (120, 200 and 280 kg/rn 3 ), the mixture aggregate grading (fine, medium and coarse) and the compaction energy (normal Proctor, intermediary and modified)...

Retarder Application to Longitudinal Roller Compacted Concrete Pavement Joints

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In the case of roller-compacted concrete pavements (RCCP) in spacious site like yard, harbor and so on, socalled fresh joint technique at longitudinal joints is widely used in order to achieve high load-transfer efficiency. However traditional fresh joint technique allowed the limited length of placing, because delay between the fresh...

Roller Compacted Concrete Pavement Using Recycled Concrete Aggregate

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Usage of recycled concrete aggregates produced from crushed demolished concrete has been limited due to its higher cost and the difficulty caused from its major ingredients, cement mortar, and by-product powder. However, the exhaustion of aggregate resources and increase demand of preserving the natural environment require developing an effective application...

Abrasion Resistance of Roller Compacted Concrete (RCC)

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The scope of this work is the behaviour under abrasion of different concrete (RCC) made with limestone, schist and granite aggregates. Binder contents (cement and fly ash) ranging from 90 kg/rn 3 to 190 kg/rn3 were tested. Small concrete slabs 60x60x40 mm were cut from 150000 mm cylinders prepared according...

Fiber-Reinforced Roller-Compacted Cement Concrete (Rollfiber) for Continuous Concrete Pavements

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The ROLLFIBER process consists of roller-compacted cement concrete reinforced with steel fibers. It enables you to build continuous pavements without any joints. To reach this level of performance, the fiber has to have what is known as total' anchorage, and its action is optimized by the use of a concrete...

Use of Roller Compacted Concrete in Road and Airport Pavement Construction in Sri Lanka

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In the quest for introducing materials and techniques of construction, the Research & Development Division of the Road Development Authority, Sri Lanka has carried out several trials and successfully constructed an airport apron, a causeway of 2km length using Roller Compacted Concrete (RCC) pavements and a road of length 0.265km....

The Actuality & Prospect of RCCP in China

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The research on RCCP was launched in early 80' in China. The laboratory test started in 1981 followed by the first sectioii of field experimcnt road in 1982. And then extended resmrch was carried out in 1983 and 1984. A few years later in 1988, the research on Cement Concrete...

Judgment of Compaction Degree of Rccp by Using Acceleration Waves on Vibrating Roller and Influence of Subgrade Bearing Capacity on It

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The acceleration wave of the vibrating compactor under work is disturbed from the sine wave. In this research, the disturbance of acceleration wave was defined as degree of disturbance WD, the relation between compacting time, hearing capacity of ground, consistency of concrete, compaction degree of concrete, strength of concrete and...

Roller Compacted Concrete Pavements in the Basque Country

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This paper presents the main features of roller compacted concrete (RCC) pavements for low-volume roads constructed in the Spanish Basque Country since 1992. RCC is produced in ready-mixed concrete plants and placed by local asphalt contractors. Due to the small thicknesses (15-18 cm) of these works, RCC layers can be...

A New Mix Design Methodology for Roller Compacted Concrete, with Case Studies

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A new mix design methodology for roller compacted concrete (RCC) is described that involves preparing low and high density specimens at various (typically three) cement contents. For each specimen density is determined. Strengths (compressive and/or split tensile) are measured at various intervals (e.g., 1, 4, 7 and 28 days). Multiple...

Effects of Classified Fly Ash on Improving the Compactability of Roller Compacted Concrete for Pavements

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Roller compacted concrete (RCC) pavements are expected to be an economic and rational concrete pvPmAnt system that will become increasingly popular in Japan. The maximum thickness of a RCC slab completed in one layer is limited to 25 cm because of limitations in the compactability of the concrete and the...

Roller Compacted Concrete Pavements for Port Yards

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Roller compacted concrete pavements (RCCP) are favourable for port yards. To develop the design, both the bearing capai-ity and the load transfer efficiency at the joints were studied. An experimental pavement with two different RCCP structures was built: namely, one that follows the ordinary design method for port yards consisting...