IP0211 - Proactive Pothole Patching and Prevention for More Resilient Roads (.pdf - 751KB)

Snow and ice control is commonly perceived as the primary function of winter road service. However, there is another major activity that is just as important; the prevention and patching of potholes. Potholes hinder the flow of traffic, cause considerable damage to vehicles, contribute to collisions, and are a hazard to pedestrians and cyclists. According to the American Automobile Association, the [...]

IP0301 - Effect of winter road maintenance on the asphalt road surface - experience in Slovakia and the Czech Republic (.pdf - 183KB)

The properties of asphalt mixtures and the quality of their design are the key factors for their service life and durability in the pavement structure. This article deals with the influence of winter maintenance (using chemical de-icing salt) on asphalt pavements. For practical verification, asphalt mixtures standardly used in Slovakia and the Czech Republic in the surface course - asphalt concrete [...]

IP0363 - Use of Non-Potable Water in Pavement Construction: A Laboratory Study using Treated Wastewater (.pdf - 7KB)

Construction processes rely on the use of potable water. In road construction, the moisture content (amount of water), is an important factor that affects the density of a road material. An average of 50 litres of potable water per cubic meter of granular pavement material is required for road compaction. Given that South Africa has a network of over 22 000 km of road, there is a need to re-evaluate [...]

IP0170 - Mechanistic Analysis of Treated Subgrade soils at Freezing Temperatures (.pdf - 12KB)

Calcium-based stabilizing agents such as cement and lime have been extensively used to improve the engineering properties of base and subgrade layers of pavement systems. Recently, polymers and chemical stabilizers have become popular due to cost efficiency, ease of application, and fast curing times. In this study, different laboratory tests are performed to determine the engineering properties of [...]

IP0173 - Incorporating temperature based finite element approach in effectively assessing the structural capacity of flexible pavements (.pdf - 11KB)

Deflection based Non-Destructive Testing (NDT)s are utilized to assess the structural conditions of pavement sections in various transportation agencies. One popular deflection-based analysis method is the falling weight deflectometer (FWD), which has been widely utilized in multiple temperature locations. This study accounts for the actual FWD testing device simulation with a finite element approach [...]

IP0319 - Sustainable, resilient asphalt roads and the consequences for asset management (.pdf - 2.6MB)

The topic of environmental protection and recycled asphalt in road construction is not new. Recycled asphalt has already been used successfully for many decades for new road construction or maintenance. Why something new now? Against the background of increasingly dwindling natural resources, the question of reuse is becoming more and more urgent. At the same time, more and more asphalt pavements [...]

IP0176 - Development of a Pavement Adaptation Support Tool (PAST) in view of Climate Change in Canada (.pdf - 80KB)

In light of climate change, pavements in Canada are now more than ever exposed to extreme environments. Canada is warming about double the global rate, and thus it is crucial to account for the effect of climatic factors on pavement performance as results of projected climate changes. There is a lack of climate-change oriented tools and numerically robust adaptation algorithms for predicting pavement [...]

IP0109 - Pavement structure compatible for Mongolia (.pdf - 2.0MB)

The study on the possibility of creating a suitable pavement structure for the Mongolian environment has been summarized below. Methodology for determining soil design parameters of Mongolia based on their moist content to estimate embankment stability was studied and found the possibility of creating suitable pavement structure has been presented in one of my research works for Ph.D. studies. [...]

IP0192 - Performance of Recycled Base for Road Resilience (.pdf - 238KB)

Currently, the scarcity of natural resource becomes national and global concerns. Thailand is one of many countries that have been encountering this situation over decades. Large amount of natural rock, aggregate, sand, and lateritic soil from quarries and buried pits have been utilized in the road construction industries for engineered pavement structure in accordance with the local highway standard [...]

IP0342 - Winter damage to road wearing course (.pdf - 434KB)

During the winter of 2009-2010, numerous deteriorations appeared on the road networks in the north-east part of France. Following this episode, various expert reports were drawn up, attempting to explain the phenomenon observed. Particular monitoring of what has been called "winter damage" (detachment by patches, potholes, crazing, stripping, etc.) has also been set up on the national road network. [...]

IP0118 - Estimation of Causes of Asphalt Pavement Distresses under Severe Climate Conditions in Mongolia (.pdf - 15KB)

Mongolia is located at about 42-52 degrees north latitude and has an area of about 1.57 million square km at an altitude of more than 1,000 meter. Mongolia has and manages 49,250km length of road network including 4,286km of the Asian highways. Mongolia has a continental climate with long and frigid winters and short summers. Air temperatures sometimes drop to -40 degrees Celsius in winter, on the [...]

IP0178 - Program Efforts towards Designing More Resilient Pavements (.pdf - 542KB)

Pavement resilience is becoming an increasing critical consideration for highway and transportation engineers. The U.S. Department of Transportation Strategic Plan for FY 2018-2022 identifies the development and deployment of technological tools as a key strategy to improve the durability and resilience of the Nation’s transportation infrastructure. Furthermore, indications from the recent Appropriation [...]

IP0361 - Dynamics of sediment delivery and runoff coefficients as determinants of unpaved roads deterioration by rainfall erosion (.pdf - 32KB)

Abstract: Erosion of soils is increasingly becoming a pertinent challenge to the sustainability and serviceability of unpaved roads. About 70% of the world road network is unpaved and critically threatened by water erosion processes which lead to soil loss and formation of erosion features such rills and ephemeral gullies that hamper serviceability of unpaved road in rainy seasons. To investigate [...]

IP0165 - DESARROLLO DEL PAVIMENTO ASFÁLTICO EN RELACIÓN CON LAS PROPIEDADES TERMOFÍSICAS Y FOTOMÉTRICAS DEL MATERIAL (.pdf - 545KB)

Analyses of climate simulations carried out by the German Weather Service to derive future climate boundary conditions have shown that there will be a climatic warming in Germany in the near future. The intensity of the increase will vary regionally and will increase once more in the distant future. In order to counteract the negative consequences of these climatic changes, material adaptations with [...]

IP0104 - ESTUDIO COMPARATIVO PARA LA ESTABILIZACIÓN DE CARPETAS DE RODADO GRANULAR CON ESTABILIZADOR QUIMICO EN LA CIUDAD DE PUNTA ARENAS (.pdf - 4.8MB)

El aumento del tráfico vehicular por caminos no pavimentados, en la zona de extensión urbana de la ciudad de Punta Arenas, región de Magallanes y Antártica Chilena, influye directamente en la necesidad de mantención para el confort de la comunidad, quedando como el ente encargado de realizar las reparaciones de los caminos, la Municipalidad de PuntaArenas, muchas veces superado en su capacidad [...]

IP0068 - ESTUDIO SOBRE EL ESTADO DE SERVICIO DEL PAVIMENTO PERMEABLE UTILIZADO EN LA REGIÓN FRÍA Y NEVADA DE JAPÓN Y LA EFECTIVIDAD DEL HP-SMA (.pdf - 56KB)

In Hokkaido—one of Japan’s snowy, cold regions—national highways had traditionally been paved with porous asphalt in an effort to improve road safety during the winter and in rainy conditions. In fact, porous asphalt pavement has proven effective in increasing driving safety. However, porous asphalt has been found to have durability issues. Japan’s snowy, cold regions receive some of the heaviest [...]

IP0073 - GESTION EFICIENTE DE INFRAESTRUCTURAS. PAVIMENTOS RESILIENTES. AUTOVÍAS A3 Y A31 EN CUENCA (ESPAÑA). (.pdf - 1.8MB)

La sociedad Autovía Conquense (100% FCC Construcción) gestiona la concesión de las autovías A3 y A31 en Cuenca, España. La concesión comprende 100 km de pavimentos flexibles y 36 km de pavimentos rígidos, sometidos a las estrictas condiciones de un clima continental, con inviernos fríos y veranos muy calurosos. Adicionalmente, las solicitaciones de tráfico se caracterizan por marcadas puntas [...]

IP0193 - Investigación del comportamiento de autocuración de los ligantes asfálticos modificados con nanoarcillas (.pdf - 12KB)

In light of climate risks and increasing traffic loads in Canada, flexible pavements are more than ever subject to exacerbated deteriorations and reduced service lives. In response to these challenges, asphalt binder modification with nanomaterials is the prominent technology to enhance the rheological properties of composites. This study investigates the intrinsic healing behavior of nanoclay modified [...]

IP0292 - Investigación y aplicación de nuevas tecnologías y equipos para la construcción y el mantenimiento de carreteras en zonas (.pdf - 78KB)

In the cold area of northern China, due to its complex geological conditions? bad weather conditions and large temperature difference between day and night, road construction and maintenance has attracted much attention. In order to solve the crack problem of semi-rigid base asphalt pavement in cold area, the method of comparing the test with ordinary mixing and vibration mixing was carried out, the [...]

IP0240 - La sobrecarga, un factor crítico en la resiliencia de los pavimentos (.pdf - 306KB)

La resiliencia en pavimentos suele referirse a su capacidad de recuperación de su funcionalidad después de un evento extraordinario, asociado usualmente a eventos climáticos extremos, sismos de alta intensidad y, en algunos casos, acciones terroristas. En la red carretera de México y, quizás en otros Países, se presenta un evento de acción diaria, no previsto en los diseños de las estructuras [...]

IP0312 - Mejora de la resiliencia del pavimento mediante el monitoreo continuo de vibraciones (.pdf - 8KB)

Almost all road administrations around the world conduct road condition monitorings periodically to gather information about the ride comfort and the development of substance indicators such as cracks and potholes. The periods vary, but cover mostly timeframes between 3 and 5 years. Preparation, conduction and evaluation is a time consuming effort with each campaign. Especially in emergencies or as [...]

IP0212 - Modificación de asfalto con llantas de caucho granulado (.pdf - 734KB)

Roads are considered one of the most important elements of infrastructure and they play an essential role in our daily lives. Over the years, road structures have deteriorated more rapidly due to increases in service traffic density, axle loading and low maintenance services. To minimize the damage of pavement surface, increase resilience and durability of flexible pavement, this research works suggest [...]

IP0218 - Monitoreo de heladas y deshielos en carreteras en Quebec (.pdf - 838KB)

The Ministère des Transports du Québec (MTQ) decrees a period of weight restrictions at the end of each winter due to weakening of the pavement structures during the spring thaw. During this period, the load limits allowed for heavy vehicles are reduced in order to protect the road network, which has a lower load-bearing capacity. The regulations on vehicle load and size standards specify the applicable [...]

IP0155 - Prima de peso en temporadas invernales y daños al pavimiento (.pdf - 1000KB)

Climatic conditions have a tremendous impact on flexible pavement response and performance. In cold climates, seasonal frost penetration in the layered system causes an important increase in its bearing capacity. Pavement strengthening in the winter period is the main reason associated with the choice of some agencies around the world to allow winter premiums for the transportation industry. Nevertheless, [...]

IP0244 - RECONSTRUCCIÓN DEL ANTIGUO PAVIMENTO RÍGIDO PARA AUMENTAR LA RESILIENCIA DESDE EL PUNTO DE VISTA DEL RENDIMIENTO DEL PAVIMENTO Y LA RESISTENCIA A LAS HELADAS (.pdf - 44KB)

In the paper is documented the case study of more successful implementations in Slovakia of a hydraulically bound base layer with robust final thickness of 40 cm, made by technology of cold recycling in situ (in the high quality of equivalent CBGM C5/6), called from the influence in the pavement structure point of view as "Homogenisation Layer", with abbreviation "HMG". The paper consists of following [...]

IP0377 - USO DE POLÍMEROS DE NUEVA TECNOLOGÍA EN PAVIMENTOS PARA ESTABILIZAR SUELOS NATIVOS (.pdf - 1.3MB)

El consumo de recursos naturales debido a la conservación o construcción de un camino es considerable y el impacto que genera al medio ambiente es alarmante. Utilizando los suelos nativos es posible obtener una estructura duradera y resiliente ante las exigencias de los usuarios y del cambio climático, reduciendo considerablemente la explotación de los bancos y los acarreos, así como las emisiones [...]