is important to have the knowledge about the connections between different costs and different surface characteristics of a pavement. The costs are for the road, traffic safety, road user and environment etc. The surface characteristics are things like friction, micro- and macro structure, iuts, evenness, cracks, sloping and drainage etc....
The Monselice Experimental Road a Performance Analysis After 5 Years Service
The continuously reitifoteed concrete road executed in Monselice (Padua, Italy) is mainly devoted to heavy traffic. During construction works, the road had been fitted with suitably devised equipment to monitor the operating performance over a sufficiently long time period. The present paper is aimed at gathering significant data recorded in...
Roundabouts with Continuously Reinforced Concrete Pavements
Roundabouts have already been used in Belgium for several years to regulate traffic at major road intersections. The surfaces at roundabouts are particularly subject to tangential stresses that result from centrifugal forces and from the overload on the outside wheels by the more or less significant tilting of the vehicles...
A New Laboratory Test to Evaluate the Shear Resistance at the Interface of Thin Bonded Overlays
The effectiveness of thin bonded overlays depends upon the adhesion level at the interface with the existing concrete pavement. It appears that shrinkage, particularly at the very early ages (18-24 hours), is mainly responsible for delamination, i.e. separation between old pavement and overlay. The present paper discusses the results of...
Noise Absorbing Walls
The context resulting from the development of tfansportations and the requirements of a better accoustic confort. Characteristics of the noise: sound speed; accoustic pressure; accoustic diagram; directiveness of the sound; accoustic spectrum. Environment impact of the noise. Comparison of the railway and roadway noise. Most important factors that...
High Performance Porous Concrete for Heavy Traffic Ring Road of Segovia Town
The properties of High performance Porous Concrete (HPPC) paving may be described as a midpoint between flexible and rigid paving. The result of many years of research, especially as regards the materials used, we suggest this is an ideal solution to the problems currently experienced with pavements of a porous...
A Practical Method of Concrete Pavement Design for Ports
Puertos del Estado, the co-ordinating institution of the main Spanish Port Authorities, has published in 1994 the Guidelines for the Design and construction of Port Pavements ROM 4.1-94, where a practical method of structural pavement design for ports areas has been developed, offering a novel and useful contribution. The different...
Study on Quality Control Method for Road Pavement Concrete Using Splitting Strength
The quality control of pavement concrete is carried out with bending strength in Japan. However, the bending strength test requires very heavy specimens of 15xl5x53cm and it is not easy to cariy out loading tests. This paper shows the results of several experiments on the feasibility of using the splitting...
Effect of Geotextile to Improve the Weak Subgrade Soil
The concept of reinforcing pavements and of reinforced earth for improving the bearing capacity of insitu soils both under static and dynamic loading has gained popularity in receriL The word geotextile is now accepted by all civil Engineers to describe the textile used for improving the behavioural (structural) and functional...
Application of High Performance Concretes in Highway and Traflic Infrastructure Construction
High performance concrete - HPC - is characterised by high strength and considerable durability under high service load. In highway construction these concrete is used to constructing and very rapid repairs of pavements, bridges, viaducts and tunnels. Differentiation in types of such objects as well as erection conditions and than...
Retarder Application to Longitudinal Roller Compacted Concrete Pavement Joints
In the case of roller-compacted concrete pavements (RCCP) in spacious site like yard, harbor and so on, socalled fresh joint technique at longitudinal joints is widely used in order to achieve high load-transfer efficiency. However traditional fresh joint technique allowed the limited length of placing, because delay between the fresh...
Modification of Cement Stiffening Time
The stiffening time of cement is a feature whose potential can be better exploited at function of each specific use of concrete. The possibility of control of this feature is useful, as much to get a better concrete performance at function of the each work peculiarities, as to correct behaviour...