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...
Mechanical Properties and Structure of Porous Concrete
A test road with 40 n-mi porous concrete top layer on a 180 mm thick continuously reinforced concrete pavement has been constructed in May 1996 in Belgium following the wet-in-wet method. A preliminary test program was conducted at the Catholic University of Leuven to reveal the influence of different polymer...
Cement Concrete Public Highways Recent Developments in Technical Literature and Applications
In a still recent past, research and innovation in the field of concrete pavements progressed mainly within the field of high volume pavements for roads and airports. This sustained and productive effort remains, giving rise to an expertise well documented in technical publications. Several countries converge in adopting constructive measures,...
Possibilities of Quality Determination of Concrete Surface Layers
Possibilities of applying methods of surface absorption, mercury intrusion porosimetry, pull-off strength tests and thermal analysis in the assessment of the state of the surface layer of a concrete airport runway are given. The results of the tests of properties of differently deteriorated surface layers of concrete in an airport...
The Proposed European Standard for Concrete Pavements
This paper describes the present situation of the European Standards for Concrete Pavements. They are currently in prcparation by a Working Group created within the framework of Technical Committee CEN TC 227 "Road materials". Since many of the specifications for concrete and its constituents (cement, water, aggregates, admixtures) are covered...
Suitability of Superplasticized Recycled Aggregate Concrete in Road Construction
Piubably, in the years to come, the use of recycled aggregates in concrete may become the need of the day. This is becasue of the nonavailability of natural aggregates in some urban areas. Also, the enviromental laws may force for the closing down of aggregate plants. Apart from this, in...
The Willebroek Ring Road (N16) – a Development in the Construction of Concrete Roads
The Willebroek ring road is part of the N16 Mechelen - St. Niklaas road. The work was carried out in 3 phases, the first phase starting in 1986. In practice, the ring was constructed with 20 cm of continuously reinforced concrete (50.000 m 2 ). Exposed aggregate surface was required...
Roller Compacted Concrete Pavement Using Recycled Concrete Aggregate
Usage of recycled concrete aggregates produced from crushed demolished concrete has been limited due to its higher cost and the difficulty caused from its major ingredients, cement mortar, and by-product powder. However, the exhaustion of aggregate resources and increase demand of preserving the natural environment require developing an effective application...
Verification of the Acting of the Recycled Building Material for the Production of Rigid Pavements in Concrete of Portland Cement
The objective of the present work is the study of the technical viability of the use of refused material of building construction like aggregates for concrete roads. The first stage consisted of the physical characterization of the aggregates obtained through the grinding, followed by a study of the granulometric composition...
Life Cycle Cost of Urban Pavements
This paper attempts an actual analysis of the cycle cost of urban pavements through the discussion of a case study: the City of Buenos Aires, Argentina. Three frequent paving solutions for the local street system are compared: plain concrete and two different asphalt alternatives. Construction, maintenance, reconstruction as well as...
The Dutch Visual Inspection Method and Standards for Levels of Maintenance of Concrete Roads
In view of the evaluation of the Pavement Management System used in the Netherlands, this system will be made suitable for concrete pavements. Thcrefore two main elements of thp cyctem, the visual inspection method and standards for levels of maintenance for concrete pavements has been developed. The visual inspection method...
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...