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 are detailed in a specific user guide note https://www.roadmat.com/en/paper/14/view.html).

A first trial was built on Konstantin Platz in Trier (Germany). Picture courtesy of BASF

Improving Polymer-Modified binders with BASF B2Last® technology

BASF presents a new way to boost the performance of polymer-modified binders by adding a reactive polymeric additive.

Case study

03 février 2026

April 2025 field trial with Wetfix® G400 on US Highway 98 in Pasco County, FL: 2.5-3 inches (6-8 cm) of Warm Mix Asphalt (WMA) were paved on a granular base. Picture courtesy of Nouryon

New generation Warm Mix Asphalt solutions with Wetfix® G400

Wetfix® G400 marks a significant advancement in the realm of warm mix asphalt (WMA) technology, serving as the next-generation compaction aid and adhesion promoter. It stands out with its environmentally friendly composition and low odor profile, removing the need for hazardous chemical labels.

Case study

30 octobre 2025

The National Center for Asphalt Technology (NCAT) Test Track in Auburn Alabama where the hybrid B2Last® + SBS trial was performed. Picture courtesy of NCAT

New BASF evaluation of Hybrid B2Last® Modified Asphalt Pavement

BASF explored the performance of the hybrid B2Last® + SBS (styrene-butadiene-styrene) modified asphalt binder on the National Center for Asphalt Technology (NCAT) Test Track in Auburn Alabama.

Case study

12 mai 2025

PR FLEX 20® by PR Industrie was used on 297,000 m2 of wearing course in Queen Alia International Airport (Jordan). Picture courtesy of PR Industrie

Application of PR FLEX 20® on Queen Alia International Airport in Jordan

PR Flex 20® was chosen for the polymer-modification of the new wearing course during the North Runway rehabilitation in QAIA

Case study

02 février 2025

Application of Asphacal® TC on a tack coat. Picture courtesy of Lhoist

Use of Asphacal® TC to protect tack coats

The use of Asphacal® TC has become inevitable during road maintenance operations. It preserves the cleanliness of neighboring road network, insures a proper bonding and the performance of surface courses, thus allowing for a long pavement life

Case study

30 août 2024

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 mars 2024

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 juin 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 mars 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 janvier 2023

The aggregate of the chip seal laid at Mount Pleasant Rd (Michigan, USA) was well embedded in the CRS-2M emulsion made with Redicote C-580. Picture courtesy of Nouryon.

Successful chip seal application with Redicote® C-580 emulsion at Mt Pleasant, Michigan (USA)

This case study describes the use of a viscosity building, cost effective, liquid and easy to use Cationic Rapid Set (CRS) emulsifier (Redicote® C-580 by Nouryon) for a successful chip seal application.

Case study

23 décembre 2022