Abrasion Resistance and Transport Properties of Road Concrete

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Abrasion resistance and impermeability are vital in road concrete. In this experimental study the compressive strength, abrasion resistance and transport properties of the road concrete were investigated. In order to study transport properties, water sorptivity and depth of penetration of water under pressure were taken into consideration. For this purpose,...

Design & Construction of an Experimental Two Layer Concrete Pavement Motorway Section in Spain

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In June 2006, GISA a Public Company, within the Department of Planning and Public Works of the Catalonian Regional Government, awarded CEDINSA the concession for the project of constructing and operating the projects of converting into a dual carriageway the stretch Vic-Ripoll of the C-17 highway. As a participant in...

Modular Security Barriers for Urban Demands Current and Demands State of the Art Solutions

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Using appropriate security barriers for directing the traffic in urban areas, close to downtown, shopping centers, protecting working zones in urban areas in general, and separating traffic, is essential for the safety of different traffic users. The traffic flow at industrial, commercial and public areas is easily managed by using...

Experimental Study of Properties of Pervious Concrete Used for Bridge Superstructure

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One of the main advantages of pervious concrete is its ability to drain water easily. Moreover, ear-lier studies on pervious concrete have shown that it can be designed to perform well in freeze-thaw regions. Bridge superstructures placed in regions where the temperature during winter time varies around freezing point are...

Innovative Concepts for Concrete Roads Further Development of the Construction

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Our modern world is characterised by traffic, the traffic of goods and/or information. Both will increase in the near future. Further there will be a strong increase in communication technology which will influence the individual traffic as well. At the same time all kinds of emissions caused either by the...

The Advantages of Concrete Pavements in Tunnels

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A 21 km long motorway is planned to be constructed through the western suburban of Stockholm. The motorway will mainly be localized in tunnels with a total length of 18 km. The intention is that the tunnel pavement shall be constructed as a jointed plain concrete pavement (JPCP) resting on...

The Role of Quality Assurance in Delivering Long–Life Concrete Pavements

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The fundamental goal behind any pavement design and construction project is to provide a system that will survive the predicted traffic and environment for the selected lifetime. Considerable effort is paid to the structural design of a pavement in order to reach that goal. On the other hand, the concrete...

Development of High Performance Repair Concrete for Pavements

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Concrete, used in the production of highways and pavements, may deteriorate after many years of service, due to severe exposure conditions. Due to strategic and economic importance of such infrastructures, swift action for repair works is required. Repairs with conventional concrete may take long time for gaining adequate strength, where...

Rapid Repair of Concrete Roads using Calcium Aluminate Cement Based Mortar in Winter Conditions

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Calcium aluminate based mortars have been widely used for fast setting repair applications. This article will present the laboratory work that was conducted to repair an existing concrete road in Istanbul. The main damage mechanism was both abrasion and frost damage; the maximum time that the road can be closed...

Evaluation of Excavatable Cement Treated Materials for Urban Areas

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For networks owners, like the French national gas utility, it is essential to ensure a rapid access to their installations, even with a simple pick, for normal or emergency maintenance matters. Modular concrete pavements were developed during the last years for that purpose. In order to keep their stability, the...

Improving the Rehabilitation Timing and Selection in a Pavement Life Cycle Cost Analysis

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Life Cycle Cost Analysis (LCCA) is an economic procedure used to compare competing pavement designs, over a defined analysis period, considering all significant costs expressed in equivalent present value dollars. Currently, most agencies apply a standard, policy set, rehabilitation schedule to all pavements based on “historical” performance. However, this can...

Recent Developments in the Design and Construction of CRCP Towards a More Durable Concept

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The technique of continuously reinforced concrete for pavement construction is being applied in Belgium since the 1960s. The original design underwent several changes over time, sometimes for economic reasons but mostly in order to improve the long term behaviour of the pavements. Today there are still possibilities for further optimisation,...