Hot recycling of asphalt at a central plant: a general quality control process and long term follow up results: Swedish case studies

Download

This notat aims to highlight the various demands on hot recycling of asphalt at a plant and to study how the recycled asphalt mixtures differ from the new one and how much asphalt granules that can be mixed without affecting the pavement performance negatively. The report presents a translation from Swedish to English of already published reports on hot recycling of asphalt in Sweden. Hot recycling at a central plant is a technique that has increased in popularity over the past years and today there are large numbers of asphalt recycling plants adapted for hot recycling in Sweden. In case of hot recycling plants, 10–50 percent of asphalt can be recycled depending on the plant type, method of recycling, type of the manufactured mixture, traffic volume and quality of the old asphalt pavement, etc. Recently, new recycling methods have been developed to enable 90–100 percent reclaimed asphalt (RA) involvement by continuous hot mix recycling. Correspondingly, the report presents results of tests carried out on the binder layer (ABb) of road 40 and surface course (ABS) of road 42, Västergötland. Research has been carried out on mixes and test sections to cover quality control of RA, stone materials in asphalt, binder content, particle size distribution and voids in asphalt, analysis of recycled binders and mechanical properties of asphalt.

LATEST NEWS


2018-06-13

International Conference on Electric Road Systems starts today

Electric Road Systems (ERS) is a relatively new concept with many initiatives on the way. To learn from each other and stimulate new collaborations the Swedish Research and Innovation Platform for Electric Roads arranged the first international conference...


2018-05-18

Same survey of road users’ attitudes in 50 countries

At the Road Safety on Five Continents Conference, RS5C, one entire session presented a large survey of road users' attitudes in 38 countries. Results show large differences between countries in many areas, both regarding behavior and attitudes. A new survey...


2018-05-17

Good results with alcohol interlock program according to Swedish study

An alcohol interlock program makes it possible for drink driving offenders to continue their everyday lives. In a Swedish study most of the participants were satisfied with the program and experienced improved health. They also reported drinking alcohol more...


2018-05-16

Traffic safety in the spotlight

Today the Conference Road Safety on Five Continents (RS5C) opened in Jeju Island, South Korea. More than 220 participators have come from all over the world to present findings and learn about traffic safety. Dr. Young Tae Kim, Secretary-General of the...


2018-04-17

VTI will develop simulators for ambulance staff

VTI has initiated a pilot study for paramedics with the Centre for Teaching & Research in Disaster Medicine and Traumatology and Linköping University. The aim is to give ambulance staff the opportunity to practice critical medical tasks in a moving vehicle in...


2018-04-12

Unique electrified road opens in Sweden

The world’s first electrified road recharging the batteries of cars and trucks while driving opened in Sweden. The Swedish Minister for Infrastructure, Tomas Eneroth, was at the formal inauguration of the electrified road on April 11, 2018. VTI is one of 22...