From many decades concrete has been successively applied in road construction in many countries. The scale of these applications is different depending on local experience and tradition. Concrete pavement is many a time more profitable solution than bituminous pavements. It refers not only to the construction of motorways or express...
Construction of Concrete Roads in Agriculture Building Industry
Asphalt-Bound or Cement-Bound Roadbase in Concrete Pavements
Plain Jointed Concrete Pavements (PJCP) are used on Swedish concrete roads. In the Swedish road construction specifications there are two alternatives for bound roadbases which can be used in concrete pavements. Generally a 150 mm thick cement-bound roadbase (CG) has been used. As an alternative a 100 mm thick asphalt-bound...
Investigation of Premature Concrete Pavement Distress on the Pan-American Highway in El Salvador
In 2005, a forensic engineering study was conducted on a recently constructed concrete pavement located along the Pan-American Highway (CA-1) in El Salvador. The primary distress was observed to be full-depth cracking, predominantly in the longitudinal direction. This type of cracking was noted to occur just a few months after...
Ultra Fast-Track Concrete Paving Belgian Experience
For three years the Roads and Traffic Administration (AWV) of Flemish Brabant in Belgium has been using the technique of ultrafast-track (UFT) concrete paving for the rehabilitation of several road sections. The aim is to achieve a compressive strength of 40 N/mm² on cores after 30 to 36 h of...
Urban Works in Cement Concrete: Cross Experiments Between the Road World and the Street World
The street is not a road because it fulfils multiple functions as a travel, social, cultural and economic space. The choice and organisation of surfacing play an important role, which must be clearly identified by roadway players. Cement concrete in all its urban forms occupies a place of choice in...
The Building of PCC Pavements in the High Plateau (Altiplano) of Bolivia
The High Plateau (known as Altiplano) in Bolivia has unique climate. The high altitude, over 4000 m above sea level, relative humidity, as low as 20% and daily temperature ranges between 25° C max. day down to 10°C at night during winter time, impose special construction processes for concreting...
Research on Frost Damage of Concrete for Pavements with Ordinary Portland Cement and Portland Fly-Ash Cement
Due to severe freeze thaw salt damage to concrete pavements on military airfields in the Netherlands, the Agency for Infrastructure of the Netherlands Ministry of Defence (DGW&T) decided to prescribe ordinary Portland cement (CEM I 32.5R, coded as PC) with air entrainer. The ENCI (First Dutch Cement Industry) is of...
White Topping Assessment of Asphalt Concrete Interfaces
For the rehabilitation of rutted asphalt pavements white topping and ultra thin white topping turned out to be adequate methods. The force-fit bonding between asphalt and concrete is a pre-condition for the functioning and durability of this method. Little attention is paid on testing of the bonding; in the majority...
Concrete Pavement Without Dowel Bars
The joint system presented herein takes advantage of the natural development of shrinkage in concrete to induce the formation of joints along the projections of previously placed system devices. Such system induces in an in-situ concrete pavement an efficient interlocking indentation among the slab elements resulting from the shrinkage phenomenon....
Implementation Aspects of the Steenokkerzeel Bypass Road
Early in 2005 the Steenokkerzeel bypass road was opened for traffic. This road forms a type of ring road around Steenokkerzeel centre. This new road was linked to the centre via roundabouts in two places. The bypass road as well as both roundabouts were laid in continuously reinforced concrete, the...
Austrian Experience with Concrete Pavement Design and Construction of Highly Trafficked Roundabouts
Design and construction of road intersections in the form of roundabouts is getting more and more popular not only in urban areas but also on highly trafficked primary rural roads due to their high road safety potential. Well designed roundabouts show improved safety characteristics by reducing the number and, particularly,...
A High Performance Cementitious Surface Dressing for Long-Life Wearing Courses
A number of public road laboratories are working together in an OECD/ECMT project. The aim of this project is to evaluate two technical solutions for long-life wearing courses. It is intended that these would eliminate maintenance works for several decades after construction. One of which, called HPCM (High-Performance Cementitious Material)...