Technical information

In this section, we display technical notes (including RoadMat R&D studies), case studies and user guides for our website.

Please inform us if you would like to see one specific topic covered (info@roadmat.com) or would like to sponsor a case study (sponsorship options detailed in a specific user guide note https://www.roadmat.com/en/paper/14/view.html).

The B270 (Waldfischbach, Germany) test sections where the asphalt with B2Last® achieved similar properties to a typical PmB 25/55-55, while reducing mixing and laying temperature (Warm Mix). Picture courtesy of BASF

B2Last®: the new bitumen additive for enhanced asphalt durability

The principles and benefits of B2Last® were validated in the B270 test section where it was shown that similar properties to those obtained with conventional polymer-modified binders could be achieved, while allowing for a significant temperature reduction (Warm Mix)

Case study

22 March 2024

The 27th PIARC World Road Congress took place in Prague (Czech Republic) in October 2023. Picture from Jéshoots (pexels.com)

RoadMat R&D: Presentation of the RoadMat database at the 27th World Road Congress

Three papers and a poster on the RoadMat database have been presented at the 27th PIARC World Road Congress held in Prague (Czech Republic) in October 2023

RoadMat R&D Studies

18 February 2024

Coloured asphalt often makes use of synthetic binders. It is widely used in urban areas for aesthetic and/or safety reasons. Picture courtesy of Somefor Ressources

Synthetic binders or how to replace petroleum-based bitumen?

This note describes the origin and formulation of synthetic binders that mimic petroleum-based bitumen properties, except its black colour

Technical note

16 January 2024

Application of a geogrid on Paris Roissy Charles de Gaulle runway. In this case, the product was a Notex Glass 100x100 geogrid by Afitexinov. Picture courtesy of Colas

RoadMat R&D: Reinforcing bituminous pavements with geogrids

RoadMat works on Research & Development (R&D) projects on road materials. An example of recent R&D activity of RoadMat is described in this short note, with several studies on the reinforcement of pavements using geogrids

RoadMat R&D Studies

18 December 2023

Specifying the right materials is an essential part of building sustainable roads

RoadMat R&D: Factors controlling Delta Tc

RoadMat works on Research & Development (R&D) projects on road materials. An example of recent R&D activity of RoadMat is described in this short note, with a study on binder specifications

RoadMat R&D Studies

10 December 2023

Sponsorship options

The benefits that we offer for our generous sponsors. Contact us for more information (info@roadmat.com)

User guide

19 August 2023

Bitumen is the black sticky binder used to glue minerals in asphalt mixtures. Picture courtesy of Raha Bitumen

The structure of bitumen

This note describes the basics of bitumen origin and chemistry. It helps understand the way many additives work

Technical note

04 August 2023

The DOH (Department of Highways) in Thailand specifies the use of slow setting grades of asphalt emulsion excluding cutbacks for prime coats. Picture courtesy of Nouryon

The Emulsion Asphalt Prime (EAP), prime coat application in Thailand

The benefits of prime coat are to enhance aggregate’s cohesion of road base course resulting in no surface damage prior to paving and to prevent water penetration through the base course prior to paving. This technique is commonly performed with emulsions and used worldwide to provide a bond between the base course and asphalt layer.

Case study

20 June 2023

Vietnam, with only 20 per cent of the country’s national roads paved, has approved $14bn plan to build a 1372 km highway by 2030. Picture courtesy of Nouryon.

Use of adhesion promoters to extend the life of asphalt pavements in Vietnam

Moisture damage to asphalt pavements is a major issue since bitumen does not have a natural affinity to siliceous aggregates and most of the aggregates used for paving contain silica as a main component.

Case study

28 March 2023

Use of Asphaltan® product range to improve asphalt mixtures

This case study describes the impact of Asphaltan® Montan waxes supplied by Romonta on the properties of bituminous binders

Case study

05 January 2023