Continuously reinforced concrete pavements (CRCPs), when proper design and construction guidelines are followed, may allow more than thirty million equivalent single axle load application as observed at existing CRCP sections in the United States of America. Otherwise, the CRCP may prematurely fail and require costly maintenance earlier than anticipated. In...
Feasibility of Continuously Reinforced Concrete Construction in Turkey
Effect of Concrete Road Roughness on Dynamic Response of Girder Bridges
The dynamic response of highway bridges subjected to moving truckloads is observed to be dependent on dynamic characteristics of the bridge, vehicle dynamics, and road surface roughness profile. Road roughness and the bump at bridge entrance between bridge and concrete approach slabs are the major contributors to the dynamic amplification...
Compressive Strength of Roller Compacted Concrete Containing a Non-Standard High Calcium Fly Ash
Although roller compacted concrete (RCC) made with and without fly ash (FA) has enjoyed numerous application of dams, roads and large floors construction in Europe, Japan, Australia and Unites States since 1970s, it has not almost yet been used at all in Turkey despite abundant and economical sources of FA...
Use of Taguchi Optimization Technique in Pavement Concrete Mix Design
In a concrete mix design, there are many mix variables affecting the concrete performance. If all the mix variables are taken into account, it may be necessary to use the full factorial design of experiment to obtain the concrete in the desired mechanical properties. It means more need of material,...
Optimisation Model for Functional Properties of Concrete Roads
Concrete is a suitable material for road pavements, both technically and economically. That holds especially for roads with high traffic intensity and heavy loads. Concrete roads have several technical advantages such as high wear resistance and load bearing capacity, good durability and a bright surface. In order to make concrete...
Concrete By-Passes
Concrete pavements have been used in Germany mainly for federal motorways, airfields and industrial areas and less for state and provincial roads. By-passes have been constructed with asphalt pavements. In 2001/ 2002 a by-pass in the course of a federal trunk road was constructed with a concrete pavement for the...
Flexural Behavior of Beams Strengthened with Frp Composite Sheets
During recent years studies have reported the crises involving deficiency or deterioration of a considerable portion of the Nation infrastructure. Many concrete structures need repair and strengthening for several reasons, such as expired design life, changes in functionality, damage caused by mechanical actions and environmental effects, more stringent design requirements,...
Life Costing and Reliability Concepts in Concrete Pavement Design: the South African Approach
An empirical concrete pavement design method, based on mechanistic principles, was developed for use by the general practitioner. It was recognized that the outcome of the design process should not concern only layer characteristics and risk of failure, but also the area of pavement possibly afflicted by a particular mode...
Porous Concrete/ Laboratory Versus Field Experience
Porous concrete is used as top layer on highway roads to obtain noise reducing and permeable pavements. An extensive laboratory investigation has been executed to obtain an optimum mixture composition for the use as top layer on highway roads. This comprises a good resistance against heavy traffic, no rooting and...
Effect of Curing on Strength and Chloride Penetration into Concretes Made with Portland and Blast Furnace Slag Cements
In this paper, portland cement concretes and concretes with blast furnace slag cement were studied to determine the parameters for strength and chloride permeability under different curing procedures. For this purpose, four concrete mixtures were made at two different water cement ratios of 0.45 and 0.65 with cement contents of...
High-Volume Fly Ash Concrete for Concrete Pavements
This paper presents the data on the properties of fresh and hardened concrete made with replacement of the Portland cement by fly ash, from a thermal power plant in Turkey, up to large volumes (55%). The investigated parameters are water requirement for a given slump, air content, setting time of...
How Does the Micro and Macrotexture of Cement Concrete Pavement Affect the Skid Resistance of Road
The fast development of car technology has caused a steady increase in the speed of vehicles and increasingly higher demands on braking and traction. International studies show that every increase in average speed causes increase in personal injury accidents. Yet the present transport infrastructure in general and cement concrete pavement...