On the European route E35 near Utrecht in the Netherlands a new highway section has been built. The authority in charge has chosen a continuously reinforced concrete roadbase. A monitoring program has been started to collect data from the pavement behaviour. The data will be used fnr rnmparing the chosen...
Fundamental Study on Bonded Ultrathin Whitetopping
Ultra thin white topping is a rehabilitation technique in which thin concrete overlay is placed on asphalt pavement in distress, and this work technique has been under research in Europe, USA and other countries. In this study, a small model experiment was conducted to see its applicability to the roads...
Very Thin Bonded Cement Concrete (VTBCC) a New Quality Surfacing
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...
Control of the Rate of Concrete Compaction in the Structure – a Guarantee of the Cement Concrete Pavement and Base Durability
A 7 Lu 8% reduction in compactness of air-entrained concrete with respect to the maximum one is a positive factor from the frost, -salt resistance standpoint, nevertheless, such compactness of roller compacted concrete can lead to dangerous results. The existing methods of controlling the compaction rate (measuring the volume of...
The Influence of Friction Between Layers on Surface Deflections of Rigid Composite Pavement Structures
The paper presents the influence of friction between layers on surface detlections of rigid composite pavement structures. Pavement structures were analysed using BISAR Programme and non- destructive testing technique under different bonding conditions between the asphalt and the concrete layers. The analysis of the data involves the use of hack-calculation...
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....