In addition to the stresses caused by traffic loads concrete highway pavements may be subjected to considerable stresses due to environmental action effects and other related damaging mechanisms such as early age shrinkage, loss or absorption of moisture, temperature induced strain gradients and in some instances also alkali-silicareactions. Due to...
Analysis of Cracking Mechanisms in Concrete Pavements and Related Recommendations For Pavement Construction
Possibility of Using Concrete Roads in Turkey
Axle loads are increasing all over the world including Turkey. Asphalt pavements are not able to carry this heavy traffic safely and economically. Using asphalt pavement for heavy traffic cause early deterioration of the pavement and higher cost of pavement maintenance. As an alternative, concrete pavements may be used instead...
The Pavers System a Knowledge Sharing Concept in the Design and Assessment of Road, Airfield and Industrial Pavement
Rigid pavement thickness design is either still based on the classical Westergaard solutions or is based on a more comprehensive finite element rigid pavement model to resolve the shortcomings of the layered elastic Burmister model. The latter gives a principally better representation of the slab edges and joints. However, because...
Reasons for Cracking of the Cement Concrete Pavements from Strong and Frost-Resistant Concrete
World practice (USA, Germany) has already noted the cases of continuous cracking of the surface layers of cement concrete pavements. Continuous cracking becomes evident several years later after completing construction and results, as a rule, in deterioration of the performance characteristics of the pavements. The paper shows the results of...
The Effect of Moist Curing on the Properties of Concretes Made by Pozzolanic Cements
The strength development and permeability properties of two concretes prepared with natural pozzolanic cements, Trass Cement (TC) and Blended Cement (BC), were investigated and compared with those of an Ordinary Portland Cement (PC) concrete under varying water-curing periods. The mix design of concretes was made with an equal strength base...
Life Cycle Assessment (LCA) of a Concrete Highway
The environmental performance of a Swedish concrete highway was analysed by use of Life Cycle Assessment (LCA). As a base, a similar study carried out in Finland was used [1, 2]. The system investigated include extraction of raw materials up to the user phase (traffic and lighting). The intention of...
A Fast and Comfortable Public Transport Lane in Continously Reinforced Concrete
The Zuidtangent is a free high quality public transport lane between the city of Haarlem and Schiphol Airpoprt. The full trajectoryi s built in continouusly reinforced concrete. In this paper some design aspects are described. Also the use of concrete as a wearing course on bridges and in tunnels is...
Surface Platforms For Public Transport New Perspectives: the Case of Cement Concrete
As a result of Urban Travel Plans implemented in major cities, public transport is being favoured as a convenient means of travel and mobility by all. Platforms (road- and trackbeds) designed for public transport must offer quality from the technical standpoint in order to handle channelled loads or the insertion...
Backcalculation Analysis of Concrete Pavements Using Fuzzy Logic Approach
It is known that concrete and flexible pavements are similar each other from the structural view point. Nowadays, especially, because of the innovations in airplane technology, airplane weights have been increased. Therefore airport maintenance has become more important. It is possible to obtain information about structural performance of a pavement...
Benefit of Reduced Fuel Consumption from Economic and Environmental Perspectives a Novel Approach
Road traffic now represents one of the major sources of environmentally and hygienically harmful emissions. A reduction of the total quantity of traffic-related emissions would therefore yield great environmental benefits. A number of independent studies have demonstrated that the properties of the road, such as surface texture and rigidity, affect...
Road Concrete with Screenings of Igneous Rocks
The use of screenings of igneous rocks containing the dust-like particles (not more than 10% by weight) extends the list of efficient aggregates for the pavement concretes. The peculiarities of the grain size distribution of screenings, namely, an increased content (up to 10% and over) of dust-like particles and specific...
Geotechnical Properties of Cement Stabilized Class-F Fly Ash
The geotechnical properties of cement added class-F fly ash have been investigated to assess the potential utilization of stabilized fly ash as embankment material. The engineering properties of the cement stabilized class-F fly ash studied include the compaction, strength characteristics and the durability as measured by wetting and drying tests....