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XXVIIth World Road Congress
Pre-proceedings of the Congress

Topic 41. New or innovative pavement materials

  • IP0088 - A review on bio-based binders for sustainable asphalt pavement
    Paola CATALANO

    It is estimated that roughly 85% of bitumen is used as a binding agent in asphalt mixes for road pavements (Asphalt Institute and Eurobitume, 2015) [1]. This is due to its unique properties, such as adhesion and flexibility. However, bitumen, mainly obtained by refining crude oil, is a finite, non-renewable resource vulnerable to fluctuations in raw material prices. Thus, it promotes “unsustainable” [...]

  • IP0243 - Advancement of Current Intelligent Compaction Technology for Asphalt Pavement Layers

    Intelligent compaction (IC) provides real-time feedback to the roller operator by displaying colour-coded maps of various intelligent compaction measurement values (ICMVs) along with pass count, the temperature of the asphalt surface, speed of the roller, frequency of vibration, and amplitude of vibration. A correlation strip is normally constructed to establish a usable correlation between asphalt [...]

  • IP0296 - Analysis of road materials in climatic emergency situations with extreme heat temperatures.

    Between 19th September and 12th December 2021, the volcanic eruption of Cumbre Vieja took place on the island of La Palma, in the Spanish archipelago of the Canary Islands. For 85 days, this event devastated buildings, crops, and infrastructure in the area. The urgent need to restore traffic roads over the lava flow requires technical solutions with materials that are functional in extreme terrain [...]

  • IP0168 - Application of Machine Learning Techniques to predict Rheology and Compressive Strength of Steel Fibre Reinforced Concrete
    Darshana JAYASOORIYA

    Steel fiber reinforced concrete (SFRC) has been using for many civil engineering applications such as buildings, bridges, rigid pavements. Recently, there has been a great interest of steel fibre reinforced concrete due to various benefits they bring in inters of strength and durability over conventional concrete and asphalt pavements. In most of these applications, rheological parameters like concrete [...]

  • IP0247 - Assessment of alternative pavement materials: case of Moroccan phosphogypsum

    OCP group produces annually a large quantity of phosphogypsum, the permanent storage of which raises technical and environmental constraints. However, this coproduct valorization in civil engineering, particularly in road construction, is a promising solution within the frame of a circular economy. In order to evaluate this option, a one-kilometer-long first experimental pilot has been built in the [...]

  • IP0496 - Basic Solutions for the Construction and Maintenance of Road Corridors in Peru
    Gerber Josafatt ZAVALA ASCAÑO

    The technical specifications conventionally establish as sources of materials the granular soils that make up the pavement structure, these soils must meet certain characteristics; with the purpose of reducing the susceptibility of modifying their resistance and mechanical properties in the presence of water and climate. This work establishes technical specifications for the design and construction [...]

  • IP0067 - Coal Ash Performance as an Innovative Road Embankment and Base Layer Material
    Rulli Ranastra IRAWAN

    Construction materials are one of the primary needs in building and maintaining roads in all countries, including Indonesia. Indonesia is an archipelagic country that has many areas with limited material resources, especially standard aggregates. On the other hand, in pursuing the electrification target, Indonesia still uses coalfired power plants as the main choice for its electricity supply, due [...]

  • IP0772 - Comparative study of three industrial waste-based binders to stabilise soils in Tucumán (Argentina)
    Sebastián CHANTA

    The present work studies how to take advantage of the pozzolanic nature of several local industrial wastes: the one from the manufacture of expanded perlite (RPE), sugar cane bagasse ash (CBCA) and slag from fast-cooling cupola kilns (EHC). In an attempt to resemble Roman cement, in the case of RPE and CBCA, it is considered to combine different quantities of these wastes with hydrated lime (CUV) [...]

  • IP0643 - Comparison of the functionality of two different structures for heavy loaded pavement
    Zsolt BOROS

    In 2021, during the reconstruction of the traffic area in the STRABAG yard in Bratislava, there was an opportunity to design and, after implementation, to diagnose in detail and then monitor the variable parameters of the trial section with two different pavement constructions. The experimental field consists of two short sections, one part of which is designed with a interlocked concrete pavers and [...]

  • IP0044 - Dealing with the Problem Adhesion of Roads in Algeria
    Abdelkader FAHAM

    Road grip is an essential parameter for the safety of road users. It contributes enormously to reducing braking distances and maintaining the vehicle's trajectory at all times, particularly in the presence of a third element between the road and the tire such as water, sand, various plants, etc. However, asphalt applicators in charge of carrying out road maintenance and construction programs in Algeria [...]

  • IP0074 - Development of New Specifications for Bituminous Mixtures with Reacted and Activated Rubber from Recycled Tires

    Technologies for using crumb rubber from recycled tires as a modifier of neat bitumen have been successfully used in crack sealing, spray applications (chip seals) and hot mix asphalt for at least 50 years, notably the wet method technology, being recognized as a practical means of providing environmental, economic, sustainable, and safety of using crumb rubber, leading the Portuguese Administration [...]

  • IP0394 - Development of fast-setting UHPFRC for bridge deck overlay
    Shunji AOKI

    There are approximately 730,000 road bridges in Japan. About half of them will be 50 years old by 2030. Many of these bridges are suffering from deterioration by fatigue of the slabs due to the heavier repeated wheel running loads and number of passing vehicles, chloride attack caused by the application of deicing agents and damage caused by the freeze-thaw effect. Deteriorated slabs have been repaired [...]

  • IP0559 - Draining removable urban pavement: a modular solution for versatile urban streets
    Thierry SEDRAN

    A concept of interconnected hexagonal concrete slabs layed on a new type of excavatable cementitious material was recently developed at Eiffel University. The objective of the concept, called removable urban pavement (RUP), is to allow rapid dismantling/reconstruction operations. Expected advantages are an easy and fast access to the networks underneath, for maintenance or extension needs, a limited [...]

  • IP0030 - Effect of Low Dosage Terminally Blended Crumb Rubber Modified Bituminous Binder on the Mechanical Properties of a Dense Grade Asphalt Mixture
    Greg WHITE

    Crumb rubber modification of bituminous binders for asphalt mixtures is a well established technology. Most research has focused on the improvement of the mechanical and physical mixture properties associated with relatively high (30% to 40%) crumb rubber contents, by mass of the binder. However, in recent years there has been an increase in interest in the use of lower crumb rubber contents (5% to [...]

  • IP0128 - Fibre-modified asphalt mixtures - evaluation of five years of experience from the experimental section

    In 2017, an experimental section was constructed in cooperation with the Administration and Maintenance of Roads of the Pilsen Region, c.o. (Správa a údržba silnic Plze?ského kraje, p.o. - SUSPK) with the aim to evaluate the benefit of 3D dispersed reinforcement in asphalt mixtures in real conditions. The pavement structure with different types of fibres in the binder course was laid. Since 2017, [...]

  • IP0573 - Findings after 5 Years of Using the Test Section with the Application of Recycled PVB in the Binder Layer
    Mojmír URBÁNEK

    Paper deals with the modification additive of the asphalt mixture called SUBSTABIT. This additive is produced by recycling waste PVB from car safety glass and was developed by the Czech company CIUR a.s. in collaboration with partners such as DuPont, EUROVIA CS, a.s. and CTU in Prague. But mainly focuses on verification of the properties of the asphalt mixture with this additive, from which the binder [...]

  • IP0642 - Frost resistance and damage deterioration model of basalt fiber recycled concrete based on recycled coarse aggregate strengthening and vibration mixing technology
    guan JIAN

    In order to study the frost resistance of basalt fiber reinforced recycled concrete (BFRAC), a self-developed grinder machine was used to remove the wrapped mortar from the simply crushed recycled coarse aggregate (RCA). In combination with the RCA strengthening and vibration mixing processes, the mechanical properties and freeze-thaw resistance of fiber reinforced recycled concrete were tested to [...]

  • IP0230 - Graphene-enhanced recycled-plastic asphalt modifier: the first Hot Rolled Asphalt (HRA) case

    Since carriageways are designed to withstand local weather and climate, the unpredictability of weather conditions due to climate change has made pavement design more challenging. High-temperature results in softening and expansion of pavements leads to increased rutting and potholes, while periods of heavy rainfall can weaken or wash out the subsoil and shorten the life expectancy of the asphalt [...]

  • IP0604 - Influence and applications of different waste materials and derivatives as additives for asphalt mixes

    In recent decades, road construction and the research associated with the materials used in them has undergone important changes. The improvement of pavement performance is in a continuous process of study in order to provide better resistance and greater durability. In addition, there is the commitment to have increasingly sustainable bituminous mixtures, either considering lower energy consumption [...]

  • IP0626 - Influence of recycled plastics on the mechanical behaviour of bituminous mixtures for highway surface layers
    Henrique M. Borges MIRANDA

    Europe is one of the largest producers of plastics in the world, with an annual turnover of over 350 billion euros, making it a strategic industrial sector as the global consumption of plastics increases. However, plastic is nowadays considered a serious environmental problem as it represents a large share of the world’s waste generation, with Europe being one of the largest sources of plastic waste [...]

  • IP0673 - Investigating the performance of granular and bituminous bases in flexible pavement under various heavy axle configurations: A finite element analysis
    Imuentinyan AIVINHENYO

    Road pavement deterioration and failure is a major concern in many cities around the world. Among the critical design variables of flexible pavement structure is nature and properties of the various layer materials. It is therefore necessary to develop a better understanding of the influence of layer materials properties on deformation and overall pavement life. This paper investigates the mechanistic [...]

  • IP0400 - Investigations on shear bond characteristics of grid reinforced asphalt concrete
    Stepan BOHUS

    Reinforcing asphalt concrete pavements by 2D interlayers inserted in between of newly constructed layers (grids, composites, nonwoven fabrics) has been widely used since 80s. Since then, benefit of crack mitigation has been documented by many researchers worldwide and varies between improvement (reduction of reflective cracking). Generally the geosynthetic reinforcement compare to unreinforced increases [...]

  • IP0446 - Malaysia’s Experience with Hot and Cold Asphaltic Mix Reinforced with Aramid and Polyolefin Fibers
    Aina Nadhirah SALAHUDDIN

    In Malaysia, organic and synthetic fibers have been widely used as reinforcement in asphaltic mixes to improve performance of pavement, especially in resisting cracking and rutting. This paper focuses on the technical performance of hot and cold asphaltic mixes modified with high-tensile strength aramid and polyolefin fiber. Based on the laboratory and field test results, it was observed that [...]

  • IP0617 - Mechanical - chemical strengthened base course (MCSB-TPA) - a green and innovative approach to a new generation of asphalt pavement construction
    Zsolt BOROS

    In Slovakia, semi-rigid asphalt pavement constructions are still prevalent in new road constructions (highways and expressways). This is due to the high mechanical efficiency of hydraulically bounded base courses as compared to unbounded base courses - case of the flexible asphalt pavement construction. Lower mechanical efficiency of unbounded base courses automatically leads to economically less [...]

  • IP0754 - New tack coat asphalt emulsion for pavement life expansion
    Tomoyuki SAWA

    Tack coat is a material used to adhere surface course and binder course, or binder course and asphalt stabilized base course of asphalt pavement or concrete pavement. In Japan, asphalt emulsion is mainly used as tack coat. Although the tack coat is a material being used in daily asphalt pavement construction, the importance of adhesion is not so well known at present. In this paper, firstly, [...]

  • IP0068 - Numerical Analysis of the Behavior of Road Pavements Subjected to Cyclic Loads after Reinforcement by Geotextiles
    Mouloud ABDESSEMED

    The Algerian road and motorway heritage is very important and has developed impressively over the last fifteen years, with the completion of major projects such as the East-West motorway, expressways and a number of other national and provincial roads. However, in spite of this growth, there are still concerns about safeguarding the existing heritage, which represents more than 70% of the overall [...]

  • IP0262 - Optimal composition of rubberized cement bound base course mixtures
    Matija ZVONARIĆ

    Cement - bound base courses (CBC) significantly affect the load-bearing capacity of high-traffic load pavements and, despite their main drawback, i.e., stiffness, they are a common engineering practice in road construction projects. In recent times, the incorporation of recycled rubber into CBC is in the focus of numerous research studies. The elastic nature of rubber has a positive effect, bringing [...]

  • IP0255 - Performance Specifications for PMB Guss Asphalt Mixtures Based on Data Analysis of Pavement Damage and Experimental Studies
    Yusuke SUMI

    Hanshin Expressway is an urban expressway in Osaka and Kobe, the second largest urban area in Japan, 80% of which consists of viaducts. The pavement consists of two layers of asphalt mixture, namely, the surface layer and the base layer: drainage asphalt pavement for the surface layer, and guss asphalt pavement for the base layer on orthotropic steel decks aiming at tracking the strain and deflection [...]

  • IP0491 - Pervious Concrete Flags for Low Traffic Areas
    Ivana BARIŠIĆ

    Green engineering, sustainable development, zero waste policy… all well know concepts with high tendency for implementation in our every day life. Pervious concrete is also well known innovative, green paving material characterized by high porosity and permeability but low strength properties. It has been researched for many years and there is a lot of knowledge on its properties and behavior. However, [...]

  • IP0406 - Possibilities of using secondary materials in the bearing layers of forest roads in the Czech Republic
    Jiří JEŽEK

    There are about 38.5 thousand km of forest roads suitable for the timber hauling by road trucks and set of vehicles in the forests of the Czech Republic. Of this, at least 57% of the length of forest roads is with gravel wearing course. The design service life of forest haulage roads according to the Czech technical standard is 20 years. Due to increased traffic intensity (e.g. during a forest disasters) [...]

  • IP0784 - Properties of Repeatedly Recycled Bitumen Using Rejuvenators With Aromatics and Saturates Components
    Atsushi KAWAKAMI

    In Japan, pavement recycling has been practiced for more than 40 years. The percentage of recycled aggregate that is reclaimed asphalt pavement in the recycled asphalt mixture is increasing each year, so the amount of repeatedly recycled aggregate / bitumen is expected to increase. However, the effects of repeated recycling bitumen have not yet been clarified. The objective of this study was to understand [...]

    Pahirangan SIVAPATHAM

    TThe behaviour of hot mix asphalt with reclaimed asphalt pavement (RAP) is highly affected by the properties of the aged bitumen in the RAP used. The aged bitumen in the RAP is brittle and hard. Consequently, hot mix asphalt with RAP is susceptible to cracking at low temperatures, which is a serious problem in cold areas. However, the reuse rate of reclaimed asphalt pavement in hot and/or warm mix [...]

    Didier LESUEUR

    With the implementation of harmonized specifications in Europe since the beginning of the century, asphalt binders have become more and more standard all over Europe. In the meantime, consolidation in the refining industry has made binders travel more and more all over the continent, making it necessary to use a limited range of paving grades. This trend is now spreading to the rest of the World, [...]

  • IP0453 - Slow-hardening cements for crack mitigation of concrete pavements: from laboratoty experiments to a pilot highway

    Cementitious materials exhibit shrinkage strain on drying, leading easily to crack formation when internally or externally restrained. It is known that cements with a slow strength gain exhibit higher crack resistance under external drying and can provide longer service life of concrete pavements. The experimental campaign used ring shrinkage test on 25 mortars, covering 10 commercial cements and [...]

    Francisco MOREA

    Stone Mastic Asphalt (SMA) are worldwide known high-performance asphalts. Originally designed in Germany, they are identified by the high percentages of coarse aggregates, lower fine materials and higher bitumen content than a conventional mixture. To achieve these higher bitumen contents, it is necessary to incorporate fibers, generally cellulose, to prevent binder draindown during mixing, laying [...]

  • IP0364 - Synthesis of the Bemolanga bituminous sandstone valuation study in road works in Madagascar

    A study of the Bituminous Sandstone of Bemolanga Natural Materials was made by the LNTPB of Madagascar to be used as a wearing course in road engineering. The existing Bituminous Sandstone Deposits have very large exploitable volumes. Laboratory studies have been done and are conclusive for the physical and mechanical characteristics. The qualities of the mix obtained are satisfactory. Test boards [...]

  • IP0417 - Use of furnace steel slag for the construction of roads with rigid pavement
    Roger Andres CORTÉZ CHAVEZ

    Rigid or concrete pavements in their life period usually present failures for different reasons, these can be caused by settlements of the land, types of soils, climatic factors, deformations, the intensity of the traffic that circulates that road, which produce said deformations, drainage and sub-drainage conditions, and other reasons. Rigid pavement needs constant maintenance for its good conservation [...]

  • IP0338 - Use of “geo-pavé” in the construction of roadways in urban areas in Cote d'Ivoire: feedback

    41. New or innovative pavement materials Theme: Use of “geo-pavé” in the construction of roadways in urban areas in Cote d'Ivoire: feedback Author: Dr Arnaud Zagbaï Tapé; co-author: Dr Ahoua Don Mello. ABSTRACT The territory of Cote d'Ivoire is covered at more than 97% by primary formations consisting of irregular granitic and gneissic bands and zones of metamorphic rocks (schists and mica [...]

  • IP0441 - Uses of fine steel slag to mitigate the effects of moisture damage in asphalt mixtures
    Julio Darío BENAVIDES

    Steel slag has been proposed to replace fine fractions in hot mix asphalts (HMA) because this material has physical-mechanical properties that make it suitable for wearing courses. However, one of the main barriers to the use of these slags is the increase they cause in the final density of asphalt mixes. Therefore, the use of the fine fraction of steel slag in the mixtures can generate benefits in [...]

  • IP0652 - Virgin copolymer and polypropylene fibres as reinforcement in concrete pavement

    Concrete pavement is one of the feasible alternatives for achieving high-quality roads. Typically, steel reinforcements are used in the concrete pavement to achieve better durability, higher strength and better serviceability. The use of fibres as reinforcement in concrete pavement has been widely practised and is now becoming more relevant because of the current trend of steel price escalation. This [...]