Tining carpet drag roller compacted concrete pavement. Roller compacted concrete rcc or rolled concrete rollcrete is a special blend of concrete that has essentially the same ingredients as conventional concrete but in different ratios, and increasingly with partial substitution of fly ash for portland cement. Pdf replacing the aggregate by rice husk ash in roller. All of the modules for this training were developed from the august 2010 guide for rollercompacted. When compared to conventional concrete paving costs, roller compacted concrete can provide savings of 25% to 30%.
Roller compacted concrete pavement rcc pavement council. It has proven to be a very effective heavy duty pavement that can stand up to harsh climates, heavy wheel loads and difficult operating conditions. The partial substitution of fly ash for portland cement is an important aspect of rcc dam construction because the heat generated by. But unlike conventional concrete, its a drier mixstiff enough. Rcc construction with high performance thin asphalt wearing surfaces to provide. Roller compacted concrete rcc is a relatively stiffer hydraulic cement concrete mixture than regular concrete when fresh. Although all roller compacted concrete rcc pavements are constructed as plain, unreinforced, and undoweled pavements, their structural behavior is similar to that of conventional concrete pavements. Roller compacted concrete pavement employs a concrete paving technology that involves laydown and compaction of a zeroslump concrete mixture using equipment similar to that used in placement and compaction of asphaltic concrete pavement.
Chapter 20 page 172 state of the practice grout enriched rcc in dams. Roller compacted concrete pavement rccp refers to concrete pavement that is placed and compacted in a manner similar to asphalt pavement. With a long history of good performance on heavy duty pavements concrete pavement, placed more efficiently no slump, low water content consistency of cement treated base placed by asphalt pavers compacted with vibratory rollers no forms no reinforcing steel no. Rcc successfully and economically combines strength and durability with ease of construction.
Rollercompacted concrete rcc is a stiff mixture of aggregate, cementitious materials, and water with zero slump. Introduction roller compacted concrete rcc for paving is a construction technique that uses zeroslump concrete. The standard means of placing rccp is by first being placed through a standard or high density paver and subsequently compacted by a nonvibratory or vibratory roller. Concrete construction engineering handbook second edition. Production of rollercompacted concrete introduction definition rollercompacted concrete rcc takes its name from the method used to construct it.
Roller compacted concrete shares both properties of asphalt and concrete so it truly represents the best of both worlds delivering short and longterm value. Sustainability free fulltext roller compacted concrete with. Introduction rollercompacted concrete rcc for paving is a construction technique that uses zeroslump concrete. Performance of thin roller compacted concrete pavement under. Guide specification for construction of rollercompacted concrete pavements 1. Rollercompacted concrete rcc is an ultratough, zeroslump concrete with compressive strengths greater than 4,000 psi. Rollercompacted concrete pavement rccp is the product of a new concrete paving technology in which a zeroslump portland cement concrete mixture is spread with a modified asphalt paver and compacted with a vibratory roller. Rollercompacted concrete rcc is a zeroslump concrete consisting of densegraded aggregate and sand, portland cement, and water. Ortiz f roller compacted concrete rcc pavements for motorways and main highways. The project selected for the demonstration is located along a section of staffordboro boulevard sr11sr 53sr 211 that has heavy commuter traffic. Roller compacted concrete rcc is a zeroslump concrete consisting of densegraded aggregate and sand, portland cement, and water.
Guide specification for construction of rollercompacted. Similar to regular concrete, rcc is a mixture of aggregate, cementitious materials, and water, but it is placed using asphalt pavers and compacted by vibratory rollers, and it hardens into concrete. Rcc pavement council rollercompacted concrete pavement. Special specification 3258 roller compacted concrete. Evaluation of application of roller compacted concrete versus. Always has some kind of reinforcement rcc pavement. Roller compacted concrete is the commercial name used for concrete placed with conventional hotmix asphalt paving equipment, then compacted with rollers 1. Use of rollercompacted concrete pavement in stafford.
The rcc pavement council is a volunteer industry trade association representing the interest of those involved with the construction of roller compacted concrete pavements. The subgrade must be thoroughly compacted, generally with a sheeps foot roller, to provide a strong platform for construction activities. Course number fhwanhi13 course title roller compacted concrete pavements the roller compacted concrete rcc pavements course provides detailed overviews of rcc properties and materials. Accelerated pavement testing of thin rcc over soil cement pavements. Request pdf simplified design of rollercompacted concrete composite pavement rollercompacted concrete rcc is a durable, economical paving. Rollercompacted concrete pavement rcc mixtures require compaction with the use of vibratory, tamper bar screeds, and typically but not always with either static or vibratory rollers to achieve a target density. Roller compacted concrete is a noslump concrete placed by an asphalt paver and compacted by rollers materials are same as concrete well graded, angular aggregates, cement, and water but. It contains information on applications, material properties, mix proportioning, design, construction, and quality control procedures. Numerical analysis of roller compacted concrete pavement. Rcc is consolidated or compacted in the fresh state by use of a roller with or without vibration. The growth of rollercompacted concrete pavement used in different regions is impeded by concerns regarding. We place it with highdensity specialized paving equipment, then compact it with rollers.
Rollercompacted concrete, or rcc, takes its name from the construction method used to build it. Roller compacted concrete pavement rccp is a dry mix that is rigid enough to bear the weight of 20 ton rollers and stiff enough to be compacted by high density pavers. Historically, roller compacted concrete has been comparable in cost to asphalt pavement. August 2010 dale harrington, snyder and associates. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Production of roller compacted concrete introduction definition roller compacted concrete rcc takes its name from the method used to construct it. The rcc pavement council supports research and promotion to improve the quality of rcc pavements and expand their use in a responsible and sustainable manner. No finishing rolled surface is the riding surface finishing differences between conventional concrete and rcc.
Roller compacted concrete, rcc, composite pavement. Having characteristics of both asphalt and concrete pavements, rcc is best described as a third pavement choice. One type of cdw is recycled concrete aggregate rca, which could be an excellent option to use as an aggregate for the pavement layer due to its physical. This specification references select articles and sections in items 360, 420, and 421 of the. This report covers the present state of the art for roller compacted concrete pavements. Rollcon llc rollercompacted concrete pavements for. Rollercompacted concrete pavements for highways and. Roller compacted concrete pavement, is a type of nonreinforced concrete pavement placed with high density paving equipment and then compacted with vibratory rollers.
This webinar will introduce specifiers to roller compacted concrete. Evaluation of application of roller compacted concrete. Rollercompacted concrete pavements were first used in the 1970s for stabilization of logging roads in the us and canada. Rollercompacted concrete pavements as exposed wearing surface version 1. Roller compacted concrete, flexible pavement, pavement performance, mepdg. Investigation of roller compacted concrete for use in. The rcc pavement was built to smoothness specifications that eliminated the need for an asphalt surface, and saw cuts were constructed every 27 feet 8. Roller compacted concrete pavement rccp is the product of a new concrete paving technology in which a zeroslump portland cement concrete mixture is spread with a modified asphalt paver and compacted with a vibratory roller. Precast concrete pavement roller compacted concrete pavement. Use of rollercompacted concrete pavement in stafford, virginia. Typically, rollercompacted concrete has been used for heavy duty. Good performance of rcc is ensured by optimal concrete thickness, acceptable maximum displacement of pavement layers, and adequate.
Roller compacted concrete webinar national ready mixed. Rcc has the same basic ingredients as conventional concrete. Rollercompacted concrete has the same basic ingredient as conventional concrete. This report covers the present state of the art for rollercompacted concrete pavements. For the most consistent results, purpose built highdensity asphalt type paving equipment is utilized to place rcc. The southeast cement promotion association scpa recently featured a new paving technology in their promotion spotlight 2016. Roller compacted concrete for roadway paving final report 3 the aggregates in rcc typically comprise 75 to 85 percent of the volume of the mixture aci, 2001, adaska, 2008. The performance of rccp is similar to concrete pavements in. It is placed in lifts between 410 inches 100250mm thick and 30 feet m wide. Roller compacted concrete rcc as a paved surface offersacilityf owners and pavement designers a concrete pavement alternative that may better meet the requirements of specific pavement projects than conventionally castinplace concrete pavements. Similar to regular concrete, rcc is a mixture of aggregate, cementitious materials, and water, but it is placed using asphalt pavers and compacted by vibratory rollers, and. Rollercompacted concrete pavements for highways and streets.
Both pavements types have the same thickness design philosophy. The american concrete institute aci 116r1 defines rcc as concrete compacted by roller compaction. With rising oilasphalt costs, roller compacted concrete may actually be lower in initial paving costs. Rollercompacted concrete pavement employs a concrete paving technology that involves laydown and compaction of a zeroslump concrete mixture using equipment similar to that used in placement and compaction of asphaltic concrete pavement. To further its achievement of quality, innovation, and excellence, the leaders of the new worldclass caterpillar manufacturing facility in athens, georgia, usa, chose to enhance its equipment staging area with a tough, economical new generation of roller. Acpa provided planning and logistical support for both groups. Rollercompacted concrete whats the future for airports. Rcc is transported by dump trucks from the pugmill to the paver. This construction method, which is very similar to asphaltic concrete paving.
Rcc refers to a stiff, zeroslump concrete mixture that is placed typically with asphalttype paving equipment and then compacted with rollers. Properties of hardened rcc can be similar to those of conventionally placed concrete. Guide specification for construction of roller compacted concrete pavements 1. Guide to rollercompacted concrete pavements reported by aci committee 327 wayne s. With its placement and quickset advantages, the use of roller compacted concrete is gaining fresh energy among contractors and road agencies. Roller compacted concrete pavement placement method. Pdf construction of roller compacted concrete dam in. Roller compacted concrete rcc is an ultratough, zeroslump concrete with compressive strengths greater than 4,000 psi. Aug 08, 2016 to further its achievement of quality, innovation, and excellence, the leaders of the new worldclass caterpillar manufacturing facility in athens, georgia, usa, chose to enhance its equipment staging area with a tough, economical new generation of roller compacted concrete rcc compacted concrete pavement ccp. Concrete pavement construction basics compaction and trimming before compacting, subgrade material may have to be brought to the optimum moisture content. Three fullscale roller compacted concrete rcc pavement sections built over a.
Rcc does not involve the use of internal vibration that typically is used to consolidate concrete used in conventional paving. This guide for rollercompacted concrete pavements is a product of the national concrete pavement technology center national cp tech center at iowa state universitys institute for transportation, with funding from the portland cement association. Reconstruction recycling of concrete pavement recycling concrete pavement eliminates need for disposal by using the readily available pavement as an aggregate source for new concrete or subbase layers recycling concrete pavement is a relatively simple process. Roller compacted concrete rcc is a stiff mixture of aggregate, cementitious materials, and water with zero slump. Its placed with conventional or highdensity asphalt paving equipment,then compacted with rollers. Because it contains a relatively small amount of water, it cannot be placed by the same methods used for conventional portland cement concrete pcc. Crushed or uncrushed coarse aggregates may be used, although crushed aggregates are preferred. Although many of the properties of rcc are similar to conventional concrete, roller compacted concrete can also be. Keywords concrete pavement, roller compacted concrete pavement rccp, joints. Rollercompacted concrete rcc as a paved surface offersacilityf owners and pavement designers a concrete pavement alternative that may better meet the requirements of specific pavement projects than conventionally castinplace concrete pavements.
Rollercompacted concrete rcc shall consist of aggregate, portland cement, possibly other supplementary cementing materials fly ash, slag and silica fume and water. Roller compacted concrete rcc shall consist of aggregate, portland cement, possibly other supplementary cementing materials fly ash, slag and silica fume and water. The appearance is very similar to the opengraded look of asphalt, only it has a much lighter color that reduces the urban heat effect and decreases lighting needs by 30%. This type of concrete is transported, placed, distributed, and finally compacted using heavy roadconstruction equipments 1. Fhwa office of asset management, pavements, and construction. Simplified design of rollercompacted concrete composite. When compared to conventional concrete paving costs, roller compacted concrete can.
Rcc shall be proportioned, mixed, placed, compacted and cured. Over the past three decades rcc has been used in more than 100 projects. This document provides a guideline specification useful for developing project specifications for roller compacted concrete rcc as an exposed rcc pavement surface, that may or may not be diamond ground for smoothness andor texture. Rollercompacted concrete rcc or rolled concrete rollcrete is a special blend of concrete that has essentially the same ingredients as conventional concrete but in different ratios, and increasingly with partial substitution of fly ash for portland cement.
The low wcm of roller compacted concrete mixtures produces a lowporosity cement matrix that also contributes to the high compressive strength of the concrete. The densely graded aggregates used in roller compacted concrete mixtures help the concrete achieve high levels of compressive strength. Rcc pavement applications can be tailored to the specific. Rollercompacted concrete rcc is a relatively stiffer hydraulic cement concrete mixture than regular concrete when fresh.
It is placed with asphalt pavers to form a nonreinforced, concrete pavement. Thin whitetopping twt thin whitetopping twt 4 7 inch thick concrete overlay bonded to existing asphalt concrete pavement acp. Roller compacted concrete has been used successfully unsurfaced. The american concrete institute aci definition of roller compacted concrete states that rcc is concrete compacted by roller compaction. Rcc pavements combine various aspects of conventional concrete pavement materials prac tices with some construction practices typical of asphalt pavements. Concrete pavements transportation research board webinar 2. Rollercompacted concrete use for pavements is relatively recent and the technology is. Roller compacted concrete use for pavements is relatively recent and the technology is still evolving. However this paper examines the use of composite pavements which combine. Because the roller compacted concrete base allows for a reduction in the thickness of the conventional concrete pavement, multilayer systems can be used costeffectively in highway, airport, and heavy industrial applications and should provide the same longterm performance as fulldepth pavements. Rollercompacted concrete rcc thickness design acpa wiki. Technical brief on rollercompacted concrete pavement. Rcc will provide the final riding surface unless shown on the plans as base course where it will be covered with one or more lifts of asphalt concrete pavement.