High strength concrete (HSC) having a flexural strength considerably higher than that of ordinary pavement concrete would be a suitable material - to replace only a single lane of concrete pavement deteriorated by heavy duty traffic (see Fig. 1) or - for constructing new pavement for high load with limited...
Flexural Strength of High Performance Concrete
Concreting Bombay Metropolis Roads in India
Deterioration of Bombay Metropolis roads during rainy season is a perpetual phenomenon. During the monsoon of 1988, the major roads constructed with hydrocarbon binders suffered severe damage causing great inconvenience to the users. In view of the mounting pressure from the public, at large the municipal authorities decided to switch...
Test Method for the Determination of Wear Resistance of Concrete Pavements – a Ring Analysis of Northic Road Simulators
In the European Committee of Standardization (CEN) road simulators have been proposed as test equipment for determining the wear resistance of concrete road surfaces to studded winter tyres. The purpose of this ring analysis was to find what relationship there is between three Nordic road simulators and to produce proposals...
Transverse Joint Spalling Models for JPCP and JRCP
This paper presents transverse joint spalling models developcd for both jointed plain concrete pavements (JPCP) and jointed reinforced concrete pavements (JRCP). These models were developed as a part of a rigid pavement performance study (RIPPER) conducted by ERES Consultants, Inc. and sponsored by the U.S. Federal Highway Administration (FHWA). The...
Jointed Concrete Pavement Structural Evaluation Overlays Design
In connection with a rehabilitation project, the long-term performances of 15km existing old jointed pavement were comprehensively surveyed. The collected data included visual conditions, roughness measurements, core tests, and FWD defleLtions. By analyzing the FWD measurements, the in situ struchiral moduli were backcalculated, and then, the fatigue damage of existing...
Test Sections of Noiseless Cement Concrete Pavements
Halfway through 1996, six different wearing courses were casted over a length of 3 km on the N255 Edingeri-Ninovc at Ilcrnc and Gaimaarden. 4 Different wearing courses each 4 cm thick, were casted on a continuously reinforced concrete pavement. In addition to the conventional wearing courses SMA 0/14 and ZOAB...
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...
Eco-Concrete Block Paving
Eco-concrete block paving is considered to be a significant innovation for environmentally beneficial pavements in residential areas. The objective is to infiltrate rainwater on the spot. The use of permeable concrete block paving is restricted by its bearing capacity and the existing soil. The paper deals with fundamental rules, design...
The Shrinkage Model in the Non-Linear Fem Program Parma for the Design of Reinforced Concrete Pavements
The design of reinforced concrete pavements presents complex problems of modelling, owing to the marked nonlinearity of structural response of the reinforced concrete, of the foundation and the unilateral behaviour of the interaction between pavement and foundation. The external actions to which a road pavement is subjected are the result...
Resurfacing the A6a Motorway Using Continuous Reinforced Concrete – August 1994
The section of the A6a motorway between Porte d'Orléans in Paris and the Wissous interchange (10 km to the sniith) wRr npened in April 1960 For 34 years, the carriageways of this motorway, which have had to stand "double TO" traffic (4000 heavy loads a day), and which consist of...
Foundation Materials – Cement – Stabilised Quarry Sand
When crushing stones of different calibres, quarries produce a large amount of sand, referred to as crushed sand. This material is often considered as a by-product and its use is reserved for less noble applications than road foundation. However, when stabilised with cement, this sand has very interesting properties and...
The Fatigue Behaor of Rolled Compacted Concrete
This paper presents the partial results of a research on Rolled Compacted Concrete (RCC) which aimed at characterizing its fatigue behavior. The influence of cement content (120, 200 and 280 kg/rn 3 ), the mixture aggregate grading (fine, medium and coarse) and the compaction energy (normal Proctor, intermediary and modified)...