The world-wide debate on suitable economic measures to improve mobility and energy efficiency has also led to the development of new and innovative construction materials and methods as a way of solving the problem of how to pave roads and trafficked areas economically. One such innovation is paver-compacted concrete, or...
Dutch Step Barrier in Concrete Best for the UK
In situ Concrete Step Barrier provides one of the SAFEST BARRIER solutions for central reserves on road networks because of its almost unique ability to contain heavy vehicles without deformation and thereafter to require NO MAINTENANCE with associated road narrowing and the resulting traffic congestion. The development of Concrete Step...
Developments on the Modieslab Innovative Concrete Pavement Concept
Modieslab, a recently developed innovative and settlement-free precast concrete pavement structure, with a twin-layer porous concrete wearing course, was tested for its functional and structural properties on two full scale test pavements. Some functional properties, e.g. noise reduction, were very satisfying, however the resistance to raveling and especially the skid...
Concrete Pavement of the Access Ramp Bridge of the Peza Truck Holding Area of the Bale-Weil Customs Facility, Switzerland
This document describes the design and construction of the concrete pavement for the relatively steep access ramp bridge of the PEZA truck holding area of the Bale-Weil customs facility. The pavement design takes into account the expected change in usage after 2008 as a motorway offramp and harbour access route....
Lessons Learned from a Swedish Harbour Concrete Pavement
In 1999, a 60 000 m2 large concrete pavement was completed in a Swedish harbour. The largest part of the area consisted of 200-210 mm thick plain jointed concrete pavement (PJCP) overlaying an old asphalt pavement. The design was based on certain prerequisite concerning traffic loads, i.e., axle loads and...
Life Cycle Cost Evaluation of Cement Concrete and Asphalt Concrete Pavements in Iran
The pavement is the main and the most important component of a road. Pavements play a major role in the construction cost, maintenance and rehabilitation, traffic quality, vehicle and user costs. They are mainly divided into two types: asphalt concrete and cement concrete. For decision making in choosing the pavement...
Design Methods for Cement Bound Bases in Pavement Structures
Application of bound foundation materials is attractive and allows to reduce the required asphalt thickness due to the high stiffness of the cement bound material. Unfortunately, the design of a pavement with a bound base is not standard. This hampers the application of cemented waste materials in road bases. This...
Rapid Hardening Fiber Concrete for Airport Pavement Repair
Repair of concrete airstrips is a matter of particular interest. Besides being costly, it obstructs airport operations. Consequently, materials and construction procedures must comply with technical and operational demands. This article describes the development and application of a cementitious rapid hardening binder and a corresponding polymer fiber concrete for the...
Continuously Reinforced Concrete Inlay at Townhill Compulsory Truck Stop
The aim of this paper is to present an overview of the construction of a continuously reinforced concrete inlay at the compulsory truck stop on an interstate freeway: National Route 3, Section 3, km 20.0. The truck stop is situated in a truck lane on the southbound carriageway of the...
Mölltal Concrete Pavement 50 Years Under Traffic
The design period of pavements in Austria is in general defined with 20 to 30 years. According to the Austrian standards and guidelines for pavement design the design life for bituminous roads is 20 and for concrete roads is 30 years. Looking at existing roads, it can be recognized that...
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...
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...