There have been significant developments in concrete road pavement techniques in the past decade. To the traditional advantages of concrete pavements such as durability under heavy traffic and low maintenance cost have been added various other reasons for favouring them, such operational availability, aesthetics, architectural integration and contribution to a...
Reconstruction of Concrete Roads Using Recycled Sand as Aggregate
In the domain of road building, recycled aggregate made from old concrete road pavings has been used in the construction of new concrete pavings for quite some time. Generally only the coarse fractions of more than 4 or 2 mm, respectively, are used as recycled material. Most of the recycled...
Roughness Condition and Rule Quality of Bicycle Lanes
The Netherlands are a flat country, where the bicycle is a good alternative for short and midrange transportation. The government tries to encourage the use of a bicycle by improving the bicycle infrastructure, thus trying to reduce movements by car. Bicycle pavements are managed at a local or county level....
Experiences on Rigid Pavements in Cuban Airports
ratios between 1.0 and 1.25 to achieve the proper performance of the slabs designed. It is clear that thickness of slabs has to be properly designed according to the operations foreseen for the term of use. In the case of rehabilitations by way of overlapped layer, this has rendered a...
Stresses Analysis of Cemented Bases on Concrete Pavement
Traditional methods for road concrete pavements design do not take into account the structural contribuition of cemented bases and its fatigue consumption uiidei the traffic loads. Sections designed without major care about the structural reponses of those bases can develop early cracks, decreasing the structural capacity of the pavement. This...
Combined Mechanical and Thermal Loading on Plain and Steel Fibrez Reinforced Concrete Pavements
Plaiti aiid steel fibre reinforced concrete beams are subjected to solely thermal; solely mechanical and combined thermal and mechanical loads while the rotation of the beam-ends are prevented. The variables in the tests are type of load and combination of loads. In order to estimate the degree of restraint, some...
Surface Texture of Roller Compacted Concrete Pavement
An iiiteiisive iesearch on roller compacted concrete pavement for high speed roads has been conducted in China since the beginning of this decade. Many technical reports document that the surface of RCCP is smooth due to the effect of the roller, and texturing such dry and less workable material is...
Some Aspects of Chloride Corrosion of Cement Paste and Mortar
The durability of different kinds of cement i.e. PC 45 and PC 55, slag cement (SC) and alkali activated slag (AAS) has been investigated. The mortar were cured in a strong chloride solution and the expansion and strength were measured. Additionally, the frost resistance was tested according to ASTM Standard....
Processes of Structure Formation and Properties of Cement Stone with Polymer Additives and Disperse Reinforcement for the Repairs of Road Pavements
The addition of special polymer additives and dispersc reinforcement can improve the physicomechanical properties of cement stone being used in road construction.
Use of Roller Compacted Concrete in Road and Airport Pavement Construction in Sri Lanka
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....
Effectiveness of Load Transfer in Jointed Reinforced Concrete Pavement
The load tiansfer due to the dowel bars in jointed reinforced concrete pavements (JRCP) or to the steel reinforcing in continuously reinforced concrete pavements (CRCP) has also the effect of reducing the stress on the edge of the load slab. Therefore, the calculation of the load transfer between contiguous slabs...
A Comparison of Life Cycle Costs of Asphalt and Concrete Pavements by Computer Modelling
In the beginning of the 1990s the coiiciete industry tried to introduce newly developed concrete pavements on the Danish market, which is dominated by asphalt pavements. A number of rough estimates were carried out by all the involved parts, showing completely different results. In this paper a non-biased intensive study...